TMS320LC2404PGE [TI]
DSP CONTROLLERS; DSP控制器
| 型号： | TMS320LC2404PGE |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | DSP CONTROLLERS |
| 文件： | 总106页 (文件大小：1341K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
D
D
High-Performance Static CMOS Technology
– 33-ns Instruction Cycle Time (30 MHz)
– 30 MIPS Performance
D
External Memory Interface (’LF2407)
– 192K Words x 16 Bits of Total Memory,
64K Program, 64K Data, 64K I/O
– Low-Power 3.3-V Design
D
D
Watchdog (WD) Timer Module
Based on T320C2xx DSP CPU Core
– Code-Compatible With ’F243/’F241/’C242
– Instruction Set and Module Compatible
With ’F240/’C240
– Source-Code-Compatible With
TMS320C1x/2x
10-Bit Analog-to-Digital Converter (ADC)
– 8 or 16 Multiplexed Input Channels
– 500 ns Minimum Conversion Time
– Selectable Twin 8-Input Sequencers
Triggered by Two Event Managers
D
D
D
D
D
Controller Area Network (CAN) 2.0B Module
Serial Communications Interface (SCI)
D
D
Flash (LF) and ROM (LC) Device Options
†
†
– ’LF240x : ’LF2407, ’LF2406, ’LF2402
16-Bit Serial Peripheral Interface (SPI)
Module (Except ’x2402)
– ’LC240x : ’LC2406, ’LC2404, ’LC2402
On-Chip Memory
Phase-Locked-Loop (PLL)-Based Clock
Generation
– Up to 32K Words x 16 Bits of Flash
EEPROM (4 Sectors) or ROM
– Up to 2.5K Words x 16 Bits of
Data/Program RAM
Up to 40 Individually Programmable,
Multiplexed General-Purpose Input/Output
(GPIO) Pins
– 544 Words of Dual-Access (DARAM)
– 2K Words of Single-Access (SARAM)
D
D
Five External Interrupts (Power Drive
Protection, Reset, and Two Maskable
Interrupts)
D
D
Boot ROM (’LF240x Devices)
– SCI/SPI Flash Bootloader
Two Event-Manager (EV) Modules (A and B)
EVA and EVB Each Include:
– Two 16-Bit General-Purpose Timers
– Eight 16-Bit Pulse-Width Modulation
(PWM) Channels Which Enable:
– Three-Phase Inverter Control
– Centered or Edge Alignment of PWM
Channels
– Emergency PWM Channel Shutdown
With External PDPINT Pin
– Programmable Deadband Prevents
Shoot-Through Faults
– Three Capture Units For Time-Stamping
of External Events
– On-Chip Position Encoder Interface
Circuitry
– Synchronized Analog-to-Digital
Conversion
– Suitable for AC Induction, BLDC,
Switched Reluctance, and Stepper Motor
Control
Power Management:
– Three Power-Down Modes
– Ability to Power-Down Each Peripheral
Independently
D
D
Real-Time JTAG-Compliant Scan-Based
‡
Emulation, IEEE Standard 1149.1 (JTAG)
Development Tools Include:
– Texas Instruments (TI ) ANSI
C Compiler, Assembler/Linker, and
Code Composer Debugger
– Evaluation Modules
– Scan-Based Self-Emulation (XDS510 )
– Numerous Third-Party Digital Motor
Control Support
D
D
Package Options
– 144-Pin Thin Quad Flatpack (TQFP) PGE
(’LF2407)
– 100-Pin TQFP PZ (’LC2404, ’LC2406,
’LF2406)
– 64-Pin PQFP PG (’LC2402 and ’LF2402)
– Applicable for Multiple Motor and/or
Converter Control
Extended Temperature Options (A and S)
– A: – 40°C to 85°C
– S: – 40°C to 125°C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TI, Code Composer, and XDS510 are trademarks of Texas Instruments Incorporated.
†
‡
Throughout this data sheet, ’240x is used as a generic name for the ’LF240x/’LC240x family of devices.
IEEE Standard 1149.1–1990, IEEE Standard Test-Access Port
Copyright 1999, Texas Instruments Incorporated
ADVANCE INFORMATION concerns new products in the sampling or
preproduction phase of development. Characteristic data and other
specifications are subject to change without notice.
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
Table of Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TMS320x240x Device Summary . . . . . . . . . . . . . . . . . . . 3
Functional Block Diagram of the ’2407 DSP Controller 4
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Memory Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Peripheral Memory Map of the ’LF240x/’LC240x . . . . 21
Device Reset and Interrupts . . . . . . . . . . . . . . . . . . . . . 22
TMS320x240x Instruction Set . . . . . . . . . . . . . . . . . . . . 26
Controller Area Network (CAN) Module . . . . . . . . . . 41
Serial Communications Interface (SCI) Module . . . . 44
Serial Peripheral Interface (SPI) Module . . . . . . . . . . 46
PLL-Based Clock Module . . . . . . . . . . . . . . . . . . . . . . 48
Digital I/O and Shared Pin Functions . . . . . . . . . . . . . 51
External Memory Interface (’LF2407) . . . . . . . . . . . . 54
Watchdog (WD) Timer Module . . . . . . . . . . . . . . . . . . 55
Development Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Documentation Support . . . . . . . . . . . . . . . . . . . . . . . . . 61
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . 62
Recommended Operating Conditions . . . . . . . . . . . . . 62
Peripheral Register Description . . . . . . . . . . . . . . . . . . . 90
Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Functional Block Diagram of the ’240x DSP CPU . . . 27
Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Event Manager Modules (EVA, EVB) . . . . . . . . . . . . 36
Enhanced Analog-to-Digital Converter
(ADC) Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
description
The TMS320LF240x and TMS320LC240x devices, new members of the ’24x family of digital signal processor
(DSP) controllers, are part of the C2000 platform of fixed-point DSPs. The ’240x devices offer the enhanced
TMS320 architectural design of the ’C2xx core CPU for low-cost, low-power, high-performance processing
capabilities. Several advanced peripherals, optimized for digital motor and motion control applications, have
been integrated to provide a true single chip DSP controller. While code-compatible with the existing ’24x DSP
controllerdevices, the’240xoffersincreasedprocessingperformance(30MIPS)andahigherlevelofperipheral
integration. See the TMS320x240x device summary section for device-specific features.
The ’240x family offers an array of memory sizes and different peripherals tailored to meet the specific
price/performance points required by various applications. Flash-based devices of up to 32K words offer a
reprogrammable solution useful for:
–
–
Applications requiring field programmability upgrades
Development and initial prototyping of applications that migrate to ROM-based devices
Flash devices and corresponding ROM devices are fully pin-to-pin compatible. Note that flash-based devices
contain a 256-word boot ROM to facilitate in-circuit programming.
All ’240x devices offer at least one event manager module which has been optimized for digital motor control
and power conversion applications. Capabilities of this module include centered- and/or edge-aligned PWM
generation, programmable deadband to prevent shoot-through faults, and synchronized analog-to-digital
conversion. Devices with dual event managers enable multiple motor and/or converter control with a single
’240x DSP controller.
The high performance, 10-bit analog-to-digital converter (ADC) has a minimum conversion time of 500 ns and
offers up to 16 channels of analog input. The auto sequencing capability of the ADC allows a maximum of
16 conversions to take place in a single conversion session without any CPU overhead.
A serial communications interface (SCI) is integrated on all devices to provide asynchronous communication
to other devices in the system. For systems requiring additional communication interfaces; the ’2407, ’2406,
and’2404offera16-bitsynchronousserialperipheralinterface(SPI). The’2407and’2406offeracontrollerarea
network (CAN) communications module that meets 2.0B specifications. To maximize device flexibility,
functional pins are also configurable as general purpose inputs/outputs (GPIO).
To streamline development time, JTAG-compliant scan-based emulation has been integrated into all devices.
This provides non-intrusive real-time capabilities required to debug digital control systems. A complete suite
of code generation tools from C compilers to the industry-standard Code Composer debugger supports this
family. Numerous third party developers not only offer device-level development tools, but also system-level
design and development support.
2
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
TMS320x240x device summary
Note that throughout this data sheet, ’240x is used as a generic name for the ’LF240x/’LC240x family of devices.
Table 1. Hardware Features of ’240x Devices
†
FEATURE
’LF2407
’LF2406
Yes
’LF2402
Yes
’LC2406
Yes
’LC2404
Yes
’LC2402
Yes
’C2xx DSP Core
Instruction Cycle
MIPS (30 MHz)
Yes
33 ns
33 ns
30 MIPS
544
33 ns
30 MIPS
544
33 ns
30 MIPS
544
33 ns
30 MIPS
544
33 ns
30 MIPS
544
30 MIPS
544
DARAM
SARAM
RAM (16-bit word)
2K
2K
—
2K
1K
—
On-chip Flash (16-bit word)
(4 sectors: 4K, 12K, 12K, 4K)
32K
32K
8K
—
—
—
On-chip ROM (16-bit word)
Boot ROM (16-bit word)
External Memory Interface
—
—
256
—
—
256
—
32K
—
16K
—
4K
—
—
256
Yes
—
—
Event Managers A and B
(EVA and EVB)
EVA, EVB
EVA, EVB
EVA
EVA, EVB
EVA, EVB
EVA
S
S
S
General-Purpose (GP) Timers
4
10/16
6/4
4
10/16
6/4
2
5/8
4
10/16
6/4
4
10/16
6/4
2
5/8
Compare (CMP)/PWM
Capture (CAP)/QEP
3/2
3/2
Watchdog Timer
10-Bit ADC
Yes
Yes
Yes
Yes
8
Yes
Yes
Yes
Yes
8
Yes
Yes
Yes
Yes
S
S
Channels
Conversion Time (minimum)
16
16
16
16
500 ns
Yes
500 ns
Yes
500 ns
—
500 ns
Yes
500 ns
Yes
500 ns
—
SPI
SCI
CAN
Yes
Yes
Yes
—
Yes
Yes
Yes
—
Yes
Yes
Yes
—
Digital I/O Pins (Shared)
External Interrupts
Supply Voltage
41
41
21
41
41
21
5
5
3
5
5
3
3.3 V
144 TQFP
3.3 V
100 TQFP
3.3 V
64 PQFP
3.3 V
100 TQFP
3.3 V
100 TQFP
3.3 V
64 PQFP
Packaging
†
’LF2407, the full-featured device of the ’LF240x family of DSP controllers, is useful for emulation and code development.
3
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
functional block diagram of the ’2407 DSP controller
PLLF
PLLV
XINT1/IOPA2
CCA
DARAM (B0)
256 Words
PLLF2
XINT2/ADCSOC/IOPD0
PLL Clock
RS
XTAL1/CLKIN
CLKOUT/IOPE0
XTAL2
TMS2
’C2xx
ADCIN00–ADCIN07
ADCIN08–ADCIN15
BIO/IOPC1
DARAM (B1)
256 Words
DSP
Core
V
CCA
MP/MC
10-Bit ADC
(With Twin
Autosequencer)
V
V
SSA
BOOT_EN/XF
REFHI
V
REFLO
DARAM (B2)
32 Words
XINT2/ADCSOC/IOPD0
SCITXD/IOPA0
SCI
SPI
SCIRXD/IOPA1
V
(3.3 V)
DD
SPISIMO/IOPC2
SPISOMI/IOPC3
SPICLK/IOPC4
SPISTE/IOPC5
SARAM (2K Words)
V
SS
TP1
CANTX/IOPC6
CANRX/IOPC7
Flash/ROM
(32K Words:
4K/12K/12K/4K)
TP2
(5V)
CAN
WD
V
CCP
V
(5V)
CCP
Port A(0–7) IOPA[0:7]
Port B(0–7) IOPB[0:7]
A0–A15
D0–D15
Port C(0–7) IOPC[0:7]
Port D(0) IOPD[0]
Digital I/O
(Shared With Other Pins)
PS, DS, IS
R/W
Port E(0–7) IOPE[0:7]
Port F(0–6) IOPF[0:6]
TRST
RD
READY
STRB
External Memory Interface
TDO
WE
TDI
ENA_144
TMS
JTAG Port
TCK
VIS_OE
EMU0
EMU1
W/R / IOPC0
PDPINTA
PDPINTB
CAP1/QEP1/IOPA3
CAP2/QEP2/IOPA4
CAP3/IOPA5
CAP4/QEP3/IOPE7
CAP5/QEP4/IOPF0
CAP6/IOPF1
PWM1/IOPA6
PWM2/IOPA7
PWM7/IOPE1
Event Manager A
Event Manager B
PWM8/IOPE2
PWM3/IOPB0
PWM4/IOPB1
PWM9/IOPE3
D 3 × Capture Input
D 6 × Compare/PWM
Output
D 2 × GP Timers/PWM
D 3 × Capture Input
D 6 × Compare/PWM
Output
D 2 × GP Timers/PWM
PWM10/IOPE4
PWM11/IOPE5
PWM12/IOPE6
T3PWM/T3CMP/IOPF2
PWM5/IOPB2
PWM6/IOPB3
T1PWM/T1CMP/IOPB4
T2PWM/T2CMP/IOPB5
T4PWM/T4CMP/IOPF3
TDIRB/IOPF4
TDIRA/IOPB6
TCLKINA/IOPB7
TCLKINB/IOPF5
Indicates optional modules
The memory size and peripheral selection of these modules change for different ’240x devices. See
Table 1 for device-specific details.
4
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†
PGE PACKAGE
(TOP VIEW)
OIFP5
IBO/
1
108
107
106
105
104
103
102
101
100
99
TRST
ADCIN11
ADCIN02
ADCIN12
ADCIN03
ADCIN13
ADCIN04
ADCIN05
ADCIN14
ADCIN06
ADCIN07
ADCIN15
VIS_OE
2
TDIRB/IOPF4
3
V
SSO
4
V
DDO
5
D7
T4PWM/T4CMP/IOPF3
PDPINTA
6
7
8
T3PWM/T3CMP/IOPF2
D8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
PLLF2
PLLF
98
97
PLLV
CCA
D9
96
STRB
95
TDIRA/IOPB6
V
V
DDO
SSO
94
D10
T1PWM/T1CMP/IOPB4
D11
93
RD
92
R/W
TMS320LF2407
91
T2PWM/T2CMP/IOPB5
W/R/IOPC0
EMU1/OFF
90
EMU0
89
D12
WE
88
XINT2/ADCSOC/IOPD0
D13
CAP4/QEP3/IOPE7
DS
87
V
86
XINT1/IOPA2
D14
DD
85
V
SS
84
SCITXD/IOPA0
SCIRXD/IOPA1
D15
PS
83
CAP1/QEP1/IOPA3
82
IS
81
V
CAP5/QEP4/IOPF0
SS
DD
80
V
A0
79
SPISIMO/IOPC2
A15
CAP2/QEP2/IOPA4
78
A1
77
SPISOMI/IOPC3
SPISTE/IOPC5
A14
V
V
DDO
76
SSO
75
CAP3/IOPA5
A2
74
SPICLK/IOPC4
TMS2
73
CLKOUT/IOPE0
7
A
6
A
OIFP1
OIEP1
E
B
IOPE3
B
B
B
E
B
P
E
P
E
C
IOPC6
†
‡
Bold, italicized pin names indicate pin function after reset.
BOOT_EN is available only on flash devices.
5
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†
PZ PACKAGE
(TOP VIEW)
3
A
4
A
E
P
F
IOP
5
A
OIP
LCOKUT
75 74 73 72 717069 68 67 66 65 64 63 62 616059 58 57 56 55 54 53 52 51
‡
‡
ADCIN10
ADCIN01
ADCIN09
ADCIN00
ADCIN08
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
CANTX/IOPC6
CANRX/IOPC7
CAP6/IOPF1
V
V
DDO
SSO
V
PWM7/IOPE1
TP2
PWM8/IOPE2
TP1
PWM9/IOPE3
V
CCP
REFLO
V
REFHI
V
CCA
V
SSA
BIO/IOPC1
§
BOOT_EN/XF
TMS320LC2404
TMS320LC2406
TMS320LF2406
XTAL1/CLKIN
XTAL2
TCLKINB/IOPF5
PWM1/IOPA6
PWM10/IOPE4
PWM2/IOPA7
PWM3/IOPB0
V
SS
DD
V
V
V
DD
IOPF6
RS
TCK
PDPINTB
TDI
SS
PWM4/IOPB1
PWM11/IOPE5
PWM5/IOPB2
V
V
DDO
V
SSO
SSO
V
PWM6/IOPB3
PWM12/IOPE6
TCLKINA/IOPB7
DDO
TDO
TMS
100
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1920 2122 23 24 25
1
A
2
A
0
A
OIP
F
F
F
C
IOPC3
P
IOP
B
B
B
D
C
IOPC4
†
‡
§
Bold, italicized pin names indicate pin function after reset.
CANTX and CANRX are not available on ’LC2404 devices.
BOOT_EN is available only on flash devices.
6
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†
PG PACKAGE
(TOP VIEW)
D
B
IOPB4
1A
0A
OIBP7
OIP
OIP
OIBP3
C
C
IOPC2
51 50 49 48 47 46 45 44 4342 41 40 3938 37 36 35 34 33
TMS
TDO
TDI
32
52
53
54
V
DDO
PWM5
PWM4
31
30
55
56
V
29
28
27
26
25
24
23
22
21
20
TCK
RS
SS
V
DD
PWM3
PWM2
PWM1
57
58
V
DD
V
SS
TMS320LC2402
TMS320LF2402
59
60
61
62
63
64
XTAL2
V
XTAL1/CLKIN
BOOT_EN/XF
CCP
TP1
‡
TP2
IOPC7
IOPC6
V
V
V
SSA
CCA
REFHI
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1718 19
5
4
A3
P
P
IOP
LCOKUT
†
‡
Bold, italicized pin names indicate pin function after reset.
BOOT_EN is available only on flash devices.
7
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions
The TMS320LF2407 device is the superset of all the ’240x devices. All signals are available on the ’2407 device.
Table 2 lists the key signals available in the ’240x family of devices.
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options
PIN NAME
’LF2407
’2406
’LC2404
’2402
DESCRIPTION
EVENT MANAGER A (EVA)
Capture input #1/quadrature encoder pulse input #1 (EVA) or
GPIO (↑)
CAP1/QEP1/IOPA3
CAP2/QEP2/IOPA4
83
79
57
55
57
55
4
3
Capture input #2/quadrature encoder pulse input #2 (EVA) or
GPIO (↑)
CAP3/IOPA5
75
56
54
52
47
44
40
16
18
52
39
37
36
33
31
28
12
13
52
39
37
36
33
31
28
12
13
2
59
58
57
54
53
Capture input #3 (EVA) or GPIO (↑)
§
§
§
§
§
PWM1/IOPA6
Compare/PWM output pin #1 (EVA) or GPIO (↑)
Compare/PWM output pin #2 (EVA) or GPIO (↑)
Compare/PWM output pin #3 (EVA) or GPIO (↑)
Compare/PWM output pin #4 (EVA) or GPIO (↑)
Compare/PWM output pin #5 (EVA) or GPIO (↑)
Compare/PWM output pin #6 (EVA) or GPIO (↑)
Timer 1 compare output (EVA) or GPIO (↑)
Timer 2 compare output (EVA) or GPIO (↑)
PWM2/IOPA7
PWM3/IOPB0
PWM4/IOPB1
PWM5/IOPB2
PWM6/IOPB3
50
40
41
T1PWM/T1CMP/IOPB4
T2PWM/T2CMP/IOPB5
Counting direction for general-purpose (GP) timer (EVA) or
GPIO. If TDIRA=1, upward counting is selected. If TDIRA=0,
downward counting is selected. (↑)
TDIRA/IOPB6
14
37
11
26
11
External clock input for GP timer (EVA) or GPIO. Note that timer
can also use the internal device clock. (↑)
TCLKINA/IOPB7
26
49
EVENT MANAGER B (EVB)
Capture input #4/quadrature encoder pulse input #3 (EVB) or
CAP4/QEP3/IOPE7
CAP5/QEP4/IOPF0
88
81
60
56
60
GPIO (↑)
Capture input #5/quadrature encoder pulse input #4 (EVB) or
GPIO (↑)
56
CAP6/IOPF1
69
65
62
59
55
46
38
8
48
45
43
41
38
32
27
7
48
45
43
41
38
32
27
7
Capture input #6 (EVB) or GPIO (↑)
PWM7/IOPE1
Compare/PWM output pin #7 (EVB) or GPIO (↑)
Compare/PWM output pin #8 (EVB) or GPIO (↑)
Compare/PWM output pin #9 (EVB) or GPIO (↑)
Compare/PWM output pin #10 (EVB) or GPIO (↑)
Compare/PWM output pin #11 (EVB) or GPIO (↑)
Compare/PWM output pin #12 (EVB) or GPIO (↑)
Timer 3 compare output (EVB) or GPIO (↑)
Timer 4 compare output (EVB) or GPIO (↑)
PWM8/IOPE2
PWM9/IOPE3
PWM10/IOPE4
PWM11/IOPE5
PWM12/IOPE6
T3PWM/T3CMP/IOPF2
T4PWM/T4CMP/IOPF3
6
5
5
Counting direction for general-purpose (GP) timer (EVB) or
GPIO. If TDIRB=1, upward counting is selected. If TDIRB=0,
downward counting is selected. (↑)
TDIRB/IOPF4
2
2
2
External clock input for GP timer (EVB) or GPIO. Note that timer
can also use the internal device clock. (↑)
TCLKINB/IOPF5
126
89
89
†
‡
§
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
Pin changes with respect to SPRS094B data sheet.
LEGEND: ↑ – Internal pullup
↓ – Internal pulldown
8
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
’2406
’LC2404
’2402
DESCRIPTION
ANALOG-TO-DIGITAL CONVERTER (ADC)
ADCIN00
ADCIN01
ADCIN02
ADCIN03
ADCIN04
ADCIN05
ADCIN06
ADCIN07
ADCIN08
ADCIN09
ADCIN10
ADCIN11
ADCIN12
ADCIN13
ADCIN14
ADCIN15
112
110
107
105
103
102
100
99
79
77
74
72
70
69
67
66
80
78
76
75
73
71
68
65
82
81
79
77
74
72
70
69
67
66
80
78
76
75
73
71
68
65
82
81
18
17
16
15
14
13
12
11
Analog input #0 to the ADC
Analog input #1 to the ADC
Analog input #2 to the ADC
Analog input #3 to the ADC
Analog input #4 to the ADC
Analog input #5 to the ADC
Analog input #6 to the ADC
Analog input #7 to the ADC
Analog input #8 to the ADC
Analog input #9 to the ADC
Analog input #10 to the ADC
Analog input #11 to the ADC
Analog input #12 to the ADC
Analog input #13 to the ADC
Analog input #14 to the ADC
Analog input #15 to the ADC
ADC analog high-voltage reference input
ADC analog low-voltage reference input
113
111
109
108
106
104
101
98
V
115
114
20
19
REFHI
V
REFLO
Analog supply voltage for ADC (3.3 V). V
be isolated from digital supply voltage.
must
CCA
V
CCA
116
83
83
21
V
SSA
117
84
84
22
Analog ground reference for ADC
CONTROLLER AREA NETWORK (CAN), SERIAL COMMUNICATIONS INTERFACE (SCI), SERIAL PERIPHERAL INTERFACE (SPI)
CANRX
IOPC7
CANTX
IOPC6
70
70
72
72
49
49
50
50
–
49
–
–
63
–
CANRX/IOPC7
CAN receive data or GPIO (↑)
CAN transmit data or GPIO (↑)
CANTX/IOPC6
SCITXD/IOPA0
SCIRXD/IOPA1
50
64
SCI asynchronous serial port transmit data or
GPIO (↑)
25
26
17
18
17
18
43
44
SCI asynchronous serial port receive data or or
GPIO (↑)
SPICLK
IOPC4
35
35
30
30
32
32
33
33
24
24
21
21
22
22
23
23
24
24
21
21
22
22
23
23
–
47
–
SPICLK/IOPC4
SPISIMO/IOPC2
SPISOMI/IOPC3
SPISTE/IOPC5
SPI clock or GPIO (↑)
SPISIMO
IOPC2
SPI slave in, master out or GPIO (↑)
SPI slave out, master in or GPIO (↑)
SPI slave transmit enable (optional) or GPIO (↑)
45
–
SPISOMI
IOPC3
46
–
SPISTE
IOPC5
–
†
‡
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
LEGEND: ↑ – Internal pullup ↓ – Internal pulldown
9
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
’2406
’LC2404
’2402
DESCRIPTION
EXTERNAL INTERRUPTS, CLOCK
Device reset. RS causes the ’240x to terminate
execution and sets PC = 0. When RS is brought to a
high level, execution begins at location zero of
program memory. RS affects (or sets to zero) various
registers and status bits. When the watchdog timer
overflows, it initiates a system reset pulse that is
reflected on the RS pin. (↑)
RS
133
93
93
28
36
Power drive protection interrupt input. This interrupt,
when activated, puts the PWM output pins (EVA) in the
high-impedance state should motor drive/power
converter abnormalities, such as overvoltage or
overcurrent, etc., arise. PDPINTA is a
PDPINTA
7
6
6
falling-edge-sensitive interrupt. (↑)
External user interrupt 1 or GPIO. Both XINT1 and
XINT2 are edge-sensitive. The edge polarity is
programmable. (↑)
XINT1/IOPA2
23
21
16
15
16
15
External user interrupt 2 and ADC start of conversion
or GPIO. External “start-of-conversion” input for
ADC/GPIO. Both XINT1 and XINT2 are
edge-sensitive. The edge polarity is
XINT2/ADCSOC/IOPD0
CLKOUT/IOPE0
42
programmable. (↑)
Clock output or GPIO. This pin outputs either the CPU
clock (CLKOUT) or the watchdog clock (WDCLK). The
selection is made by the CLKSRC bit (bit 14) of the
System Control and Status Register (SCSR). This pin
can be used as a GPIO if not used as a clock output
pin. (↑)
73
51
95
51
95
1
Power drive protection interrupt input. This interrupt,
when activated, puts the PWM output pins (EVB) in
the high-impedance state should motor drive/power
converter abnormalities, such as overvoltage or
overcurrent, etc., arise. PDPINT is a
PDPINTB
137
falling-edge-sensitive interrupt. (↑)
OSCILLATOR, PLL, FLASH, BOOT, AND MISCELLANEOUS
PLL oscillator input pin. Crystal input to PLL/clock
XTAL1/CLKIN
123
87
87
24
source input to PLL. XTAL1/CLKIN is tied to one side
of a reference crystal.
Crystal output. PLL oscillator output pin. XTAL2 is tied
to one side of a reference crystal. This pin goes in the
high-impedance state when EMU1/OFF is active low.
XTAL2
PLLF
124
88
88
25
11
12
10
9
10
8
9
10
8
38
39
37
Filter input 1
PLLV
CCA
PLL supply (3.3 V)
Filter input 2
PLLF2
Boot ROM enable, GPO, XF. This pin will be sampled
as input (BOOT_EN) to update SCSR2.3 (BOOT_EN
bit) during reset and then driven as an output signal for
XF. ROM devices do not have boot ROM, hence, no
BOOT_EN modes. (↑)
BOOT_EN
XF
121
121
86
86
–
23
23
BOOT_EN / XF
86
†
‡
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
LEGEND: ↑ – Internal pullup ↓ – Internal pulldown
10
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
OSCILLATOR, PLL, FLASH, BOOT, AND MISCELLANEOUS (CONTINUED)
Flash programming voltage pin. This is the 5-V supply used for
’2406
’LC2404
’2402
DESCRIPTION
flash programming. Flash cannot be programmed if this pin is
held at 0 V. Connect to 5-V supply for programming or tie it to
GND during functional mode.
§
60
V
CCP
(5V)
58
40
40
§
§
TP1 (Flash)
TP2 (Flash)
IOPF6
60
63
42
44
92
42
44
92
61
Flash array test pin. Do not connect.
Flash array test pin. Do not connect.
General-purpose I/O (↑)
62
131
Branch control input. BIO is polled by the BCND pma,BIO
instruction. If BIO is low, a branch is executed. If BIO is not
used, it should be pulled high. This pin is configured as a branch
control input by all device resets. It can be used as a GPIO, if
not used as a branch control input. (↑)
BIO/IOPC1
119
90
85
61
85
61
EMULATION AND TEST
Emulator I/O #0 with internal pullup. When TRST is driven high,
EMU0
7
this pin is used as an interrupt to or from the emulator system
and is defined as input/output through the JTAG scan. (↑)
Emulator pin 1. Emulator pin 1 disables all outputs. When TRST
is driven high, EMU1/OFF is used as an interrupt to or from the
emulator system and is defined as an input/output through the
JTAG scan. When TRST is driven low, this pin is configured as
OFF. EMU1/OFF, when active low, puts all output drivers in the
high-impedance state. Note that OFF is used exclusively for
testing and emulation purposes (not for multiprocessing
applications). Therefore, for the OFF condition, the following
apply:
EMU1/OFF
91
62
62
8
TRST = 0
EMU0 = 1
EMU1/OFF = 0
TCK
TDI
135
139
94
96
94
96
29
30
JTAG test clock with internal pullup (↑)
JTAG test data input (TDI) with internal pullup. TDI is clocked
into the selected register (instruction or data) on a rising edge of
TCK. (↑)
JTAG scan out, test data output (TDO). The contents of the
selected register (instruction or data) is shifted out of TDO on
the falling edge of TCK. (↓)
TDO
TMS
TMS2
142
144
36
99
100
25
99
100
25
31
32
48
JTAG test-mode select (TMS) with internal pullup. This serial
control input is clocked into the TAP controller on the rising edge
of TCK. (↑)
JTAG test-mode select 2 (TMS) with internal pullup. This serial
control input is clocked into the TAP controller on the rising edge
of TCK. Used for test and emulation only. (↑)
JTAG test reset with internal pulldown. TRST, when driven high,
gives the scan system control of the operations of the device. If
this signal is not connected or driven low, the device operates in
its functional mode, and the test reset signals are ignored. (↓)
TRST
1
1
1
33
†
‡
§
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
Pin changes with respect to SPRS094B data sheet.
LEGEND: ↑ – Internal pullup
↓ – Internal pulldown
11
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
’2406
’LC2404
’2402
DESCRIPTION
ADDRESS, DATA, AND MEMORY CONTROL SIGNALS
Data space strobe. IS, DS, and PS are always high
unless low-level asserted for access to the relevant
external memory space or I/O. They are placed in the
high-impedance state during reset, power down, and
when EMU1/OFF is active low.
DS
IS
87
82
84
I/O space strobe. IS, DS, and PS are always high
unless low-level asserted for access to the relevant
external memory space or I/O. They are placed in the
high-impedance state during reset, power down, and
when EMU1/OFF is active low.
Program space strobe. IS, DS, and PS are always
high unless low-level asserted for access to the
relevant external memory space or I/O. They are
placed in the high-impedance state during reset,
power down, and when EMU1/OFF is active low.
PS
Read/write qualifier signal. R/W indicates transfer
direction during communication to an external device.
It is normally in read mode (high), unless low level is
asserted for performing a write operation. It is placed
in the high-impedance state when EMU1/OFF is
active low and during power down.
R/W
92
Write/Read qualifier or GPIO. This is an inverted R/W
signal useful for zero-wait-state memory interface. It
is normally low, unless a memory write operation is
performed. See Table 13, Port C section, for reset
note regarding ’LF2406 and ’LF2402. (↑)
W/R
19
19
W/R / IOPC0
IOPC0
14
14
Read enable strobe. Read-select indicates an active,
external read cycle. RD is active on all external
program, data, and I/O reads. RD goes into the
high-impedance state when EMU1/OFF is active low.
RD
93
89
Write enable strobe. The falling edge of WE indicates
that the device is driving the external data bus
(D15–D0). WE is active on all external program,
data, and I/O writes. WE goes in the high-impedance
state when EMU1/OFF is active low.
WE
External memory access strobe. STRB is always high
unless asserted low to indicate an external bus cycle.
STRB is active for all off-chip accesses. It is placed in
the high-impedance state during power down, and
when EMU1/OFF is active low.
STRB
96
READY is pulled low to add wait states for external
accesses. READY indicates that an external device is
prepared for a bus transaction to be completed. If the
device is not ready, it pulls the READY pin low. The
processor waits one cycle and checks READY again.
Note that the processor performs READY-detection if
at least one software wait state is programmed. To
meet the external READY timings, the wait-state
generator control register (WSGR) should be
READY
120
programmed for at least one wait state. (↑)
†
‡
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
LEGEND: ↑ – Internal pullup ↓ – Internal pulldown
12
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
ADDRESS, DATA, AND MEMORY CONTROL SIGNALS (CONTINUED)
Microprocessor/Microcomputer mode select. If this pin is low
’2406
’LC2404
’2402
DESCRIPTION
during reset, the device is put in microcomputer mode and
program execution begins at 0000h of internal program memory
(flash EEPROM). A high value during reset puts the device in
microprocessor mode and program execution begins at 0000h of
external program memory. This line sets the MP/MC bit (bit 2 in
the SCSR2 register). (↓)
MP/MC
118
Active high to enable external interface signals. If pulled low, the
’2407 behaves like the ’2406/’2404—i.e., it has no external
memory and generates an illegal address if any of the three
external spaces are accessed (IS and DS asserted). This pin
has an internal pulldown. (↓)
ENA_144
VIS_OE
122
97
Visibility output enable (active when data bus is output). This pin
is active (low) whenever the external databus is driving as an
output during visibility mode. Can be used by external decode
logic to prevent data bus contention while running in visibility
mode.
A0
80
78
Bit 0 of the 16-bit address bus
Bit 1 of the 16-bit address bus
Bit 2 of the 16-bit address bus
Bit 3 of the 16-bit address bus
Bit 4 of the 16-bit address bus
Bit 5 of the 16-bit address bus
Bit 6 of the 16-bit address bus
Bit 7 of the 16-bit address bus
Bit 8 of the 16-bit address bus
Bit 9 of the 16-bit address bus
Bit 10 of the 16-bit address bus
Bit 11 of the 16-bit address bus
Bit 12 of the 16-bit address bus
Bit 13 of the 16-bit address bus
Bit 14 of the 16-bit address bus
Bit 15 of the 16-bit address bus
Bit 0 of 16-bit data bus (↑)
Bit 1 of 16-bit data bus (↑)
Bit 2 of 16-bit data bus (↑)
Bit 3 of 16-bit data bus (↑)
Bit 4 of 16-bit data bus (↑)
Bit 5 of 16-bit data bus (↑)
Bit 6 of 16-bit data bus (↑)
Bit 7 of 16-bit data bus (↑)
Bit 8 of 16-bit data bus (↑)
A1
A2
74
A3
71
A4
68
A5
64
A6
61
A7
57
A8
53
A9
51
A10
A11
A12
A13
A14
A15
D0
D1
D2
D3
D4
D5
D6
D7
D8
48
45
43
39
34
31
127
130
132
134
136
138
143
5
9
†
‡
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
LEGEND: ↑ – Internal pullup ↓ – Internal pulldown
13
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
pin functions (continued)
†‡
Table 2. ’LF240x and ’LC240x Pin List and Package Options (Continued)
PIN NAME
’LF2407
’2406
’LC2404
’2402
DESCRIPTION
ADDRESS, DATA, AND MEMORY CONTROL SIGNALS (CONTINUED)
D9
13
Bit 9 of 16-bit data bus (↑)
Bit 10 of 16-bit data bus (↑)
Bit 11 of 16-bit data bus (↑)
Bit 12 of 16-bit data bus (↑)
Bit 13 of 16-bit data bus (↑)
Bit 14 of 16-bit data bus (↑)
Bit 15 of 16-bit data bus (↑)
D10
D11
D12
D13
D14
D15
15
17
20
22
24
27
POWER SUPPLY
29
50
86
129
4
20
35
59
91
4
20
35
59
91
4
6
27
V
V
V
Core supply +3.3 V. Digital logic supply voltage.
I/O buffer supply +3.3 V. Digital logic and buffer supply voltage.
Core ground. Digital logic ground reference.
DD
§
56
10
35
42
67
77
95
141
28
49
85
128
3
30
47
54
64
98
19
34
58
90
3
30
47
54
64
98
19
34
58
90
3
§
52
DDO
5
26
SS
§
55
9
41
66
76
94
125
140
29
46
53
63
97
29
46
53
63
97
34
§
51
V
SSO
I/O buffer ground. Digital logic and buffer ground reference.
†
‡
§
Bold, italicized pin names indicate pin function after reset.
GPIO – General-purpose input/output pin. All GPIOs come up as input after reset.
Pin changes with respect to SPRS094B data sheet.
LEGEND: ↑ – Internal pullup
↓ – Internal pulldown
14
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps – ’LF2407
Hex
0000
Data
Hex
0000
I/O
Hex
Program
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
003F
0040
0FFF
005F
0060
FLASH SECTOR 0 (4K)
On-Chip DARAM B2
Reserved
1000
007F
0080
01FF
0200
‡
FLASH SECTOR 1 (12K)
On-Chip DARAM (B0) (CNF = 0)
Reserved (CNF = 1)
02FF
0300
§
On-Chip DARAM (B1)
03FF
0400
3FFF
4000
Reserved
07FF
0800
External
SARAM (2K) (DON = 1)
Internal
FLASH SECTOR 2 (12K)
FLASH SECTOR 3 (4K)
External (DON=0)
0FFF
1000
Reserved
6FFF
7000
6FFF
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, SPI, CAN, I/O, Interrupts)
7FFF
8000
7FFF
8000
SARAM (2K) (PON = 1)
Internal
External (PON=0)
87FF
8800
FEFF
FF00
Reserved
External
FF0E
FF0F
External
Flash Control Mode Register
(Only for Flash Devices)
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
Reserved
External (CNF = 0)
FEFF
FF00
†
Wait-State Generator Control
Register (On-Chip)
On-Chip DARAM (B0) (CNF = 1)
External (CNF = 0)
FFFF
FFFF
FFFF
On-Chip Flash Memory (Sectored) – if MP/MC = 0
External Program Memory – if MP/MC = 1
SARAM (See Table 1 for details.)
NOTE A: Boot ROM: If the boot ROM is enabled, then address 0000–00FF in the program space will be occupied by boot ROM.
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 1. TMS320LF2407 Memory Map
15
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps (continued) – ’LF2406
Hex
0000
Data
Hex
0000
I/O
Hex
Program
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
FLASH SECTOR 0 (4K)
003F
0040
005F
0060
0FFF
1000
On-Chip DARAM B2
Reserved
007F
0080
01FF
0200
FLASH SECTOR 1 (12K)
‡
On-Chip DARAM (B0) (CNF = 0)
Reserved (CNF = 1)
02FF
0300
§
On-Chip DARAM (B1)
03FF
0400
3FFF
4000
Reserved
07FF
0800
Reserved
SARAM (2K) (DON = 1)
Internal
FLASH SECTOR 2 (12K)
FLASH SECTOR 3 (4K)
Reserved (DON = 0)
0FFF
1000
Reserved
6FFF
7000
6FFF
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, SPI, CAN, I/O, Interrupts)
7FFF
8000
7FFF
8000
SARAM (2K) (PON = 1)
Internal
External (PON=0)
87FF
8800
FEFF
FF00
Reserved
Reserved
Reserved
FF0E
FF0F
Flash Control Mode Register
(Only for Flash devices)
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
Reserved
Reserved
External (CNF = 0)
FEFF
FF00
†
On-Chip DARAM (B0) (CNF = 1)
External (CNF = 0)
FFFF
FFFF
FFFF
SARAM (See Table 1 for details.)
On-Chip Flash Memory (Sectored)
NOTE A: Boot ROM: If the boot ROM is enabled, then address 0000–00FF in the program space will be occupied by boot ROM.
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 2. TMS320LF2406 Memory Map
16
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps (continued) – ’LF2402
Hex
Data
Hex
I/O
Hex
Program
0000
0000
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
FLASH SECTOR 0 (4K)
003F
0040
0FFF
005F
0060
1000
On-Chip DARAM B2
Reserved
007F
0080
FLASH SECTOR 1 (4K)
1FFF
2000
01FF
0200
‡
On-Chip DARAM (B0) (CNF = 0)
Reserved (CNF = 1)
02FF
0300
§
On-Chip DARAM (B1)
Reserved
03FF
0400
Reserved
07FF
0800
Reserved
Reserved
0FFF
1000
7FFF
8000
Reserved
6FFF
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, I/O, Interrupts)
Reserved
87FF
8800
7FFF
8000
Reserved
FEFF
FF00
Reserved
Reserved
FF0E
FF0F
Flash Control Mode Register
(Only for Flash devices)
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
Reserved
Reserved
External (CNF = 0)
FEFF
FF00
†
On-Chip DARAM (B0) (CNF = 1)
External (CNF = 0)
FFFF
FFFF
FFFF
On-Chip Flash Memory (Sectored)
NOTE A: Boot ROM: If the boot ROM is enabled, then address 0000–00FF in the program space will be occupied by boot ROM.
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 3. TMS320LF2402 Memory Map
17
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps (continued) – ’LC2406
Hex
Data
Hex
I/O
Hex
Program
0000
0000
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
003F
0040
005F
0060
On-Chip DARAM B2
Reserved
007F
0080
01FF
0200
‡
On-Chip DARAM (B0) (CNF = 0)
Reserved (CNF = 1)
02FF
0300
§
On-Chip DARAM (B1)
On-Chip ROM
32K
03FF
0400
Reserved
07FF
0800
Reserved
SARAM (2K) (DON = 1)
Internal
Reserved (DON = 0)
0FFF
1000
Reserved
7FFF
8000
6FFF
7000
SARAM (2K) (PON = 1)
Internal
Reserved (PON = 0)
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, SPI, CAN, I/O, Interrupts)
87FF
8800
7FFF
8000
FEFF
FF00
Reserved
Reserved
Reserved
Reserved
Reserved
FF0E
FF0F
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
External (CNF = 0)
FEFF
FF00
†
On-Chip DARAM (B0) (CNF = 1)
Reserved
Reserved (CNF = 0)
FFFF
FFFF
FFFF
On-Chip ROM memory
SARAM (See Table 1 for details.)
Reserved in the ’LC240x devices
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 4. TMS320LC2406 Memory Map
18
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps (continued) – ’LC2404
Hex
Data
Hex
I/O
Hex
Program
0000
0000
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
003F
0040
005F
0060
On-Chip DARAM B2
Reserved
007F
0080
On-Chip ROM
16K
01FF
0200
‡
On-Chip DARAM (B0) (CNF = 0)
3FFF
4000
Reserved (CNF = 1)
02FF
0300
§
On-Chip DARAM (B1)
03FF
0400
Reserved
Reserved
7FFF
8000
07FF
0800
Reserved
SARAM (1K) (DON = 1)
Internal
SARAM (1K) (PON = 1)
Internal
Reserved (DON = 0)
Reserved (PON = 0)
0BFF
0C00
83FF
8400
Reserved
6FFF
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, SPI, I/O, Interrupts)
7FFF
8000
Reserved
FEFF
FF00
Reserved
Reserved
Reserved
Reserved
FF0E
FF0F
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
External (CNF = 0)
FEFF
FF00
†
On-Chip DARAM (B0) (CNF = 1)
Reserved
Reserved (CNF = 0)
FFFF
FFFF
FFFF
On-Chip ROM memory
SARAM (See Table 1 for details.)
Reserved in the ’LC240x devices
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 5. TMS320LC2404 Memory Map
19
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
memory maps (continued) – ’LC2402
Hex
0000
Data
Hex
0000
I/O
Hex
Program
0000
Memory-Mapped
Registers/Reserved Addresses
Interrupt Vectors
003F
0040
0FFF
005F
0060
On-Chip ROM (4K)
Reserved
On-Chip DARAM B2
Reserved
007F
0080
01FF
0200
‡
On-Chip DARAM (B0) (CNF = 0)
7FFF
8000
Reserved (CNF = 1)
02FF
0300
Reserved
§
87FF
8800
On-Chip DARAM (B1)
03FF
0400
Reserved
07FF
0800
Reserved
Reserved
Reserved
0FFF
1000
6FFF
7000
Peripheral Memory-Mapped
Registers (System, WD, ADC,
SCI, I/O, Interrupts)
7FFF
8000
Reserved
FEFF
FF00
Reserved
Reserved
Reserved
Reserved
FF0E
FF0F
FDFF
FE00
FF10
FFFE
†
Reserved (CNF = 1)
External (CNF = 0)
FEFF
FF00
†
On-Chip DARAM (B0) (CNF = 1)
Reserved
Reserved (CNF = 0)
FFFF
FFFF
FFFF
On-Chip ROM memory
Reserved in the ’LC240x devices
†
When CNF = 1, addresses FE00h–FEFFh and FF00h–FFFFh are mapped to the same physical block (B0) in program-memory space. For
example, a write to FE00h has the same effect as a write to FF00h. For simplicity, addresses FE00h–FEFFh are referred to as reserved when
CNF = 1.
‡
§
When CNF = 0, addresses 0100h–01FFh and 0200h–02FFh are mapped to the same physical block (B0) in data-memory space. For example,
a write to 0100h has the same effect as a write to 0200h. For simplicity, addresses 0100h–01FFh are referred to as reserved.
Addresses 0300h–03FFh and 0400h–04FFh are mapped to the same physical block (B1) in data-memory space. For example, a write to 0400h
has the same effect as a write to 0300h. For simplicity, addresses 0400h–04FFh are referred to as reserved.
Figure 6. TMS320LC2402 Memory Map
20
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral memory map of the ’LF240x/’LC240x
Hex
0000
0003
Reserved
Interrupt-Mask Register
0004
0005
Global-Memory Allocation
Register (Reserved)
Interrupt Flag Register
0006
0007
Emulation Registers
and Reserved
005F
Hex
0000
Illegal
7000–700F
7010–701F
Memory-Mapped Registers
System Configuration and
Control Registers
and Reserved
005F
0060
On-Chip DARAM B2
Watchdog Timer Registers
7020–702F
007F
0080
Illegal
7030–703F
7040–704F
7050–705F
7060–706F
7070–707F
7080–708F
7090–709F
70A0–70BF
70C0–70FF
7100–722F
7230–73FF
Reserved
SPI
SCI
Illegal
01FF
0200
On-Chip DARAM B0
External-Interrupt Registers
Illegal
02FF
0300
On-Chip DARAM B1
03FF
0400
Digital I/O Control Registers
ADC Control Registers
Illegal
Reserved
07FF
0800
CAN Control Registers
Illegal
Illegal
6FFF
7000
Peripheral Frame 1 (PF1)
73FF
7400
Event Manager – EVA
Peripheral Frame 2 (PF2)
General-Purpose
Timer Registers
Compare, PWM, and
Deadband Registers
7400–7408
743F
7440
Illegal
7411–7419
7420–7429
74FF
7500
Peripheral Frame 3 (PF3)
Capture and QEP Registers
753F
7540
Interrupt Mask, Vector and
Flag Registers
Illegal
742C–7431
7432–743F
7FFF
8000
Reserved
External
Event Manager – EVB
General-Purpose
Timer Registers
Compare, PWM, and
Deadband Registers
7500–7508
FFFF
7511–7519
7520–7529
“Illegal” indicates that access to
these addresses causes a
Capture and QEP Registers
Illegal
nonmaskable interrupt (NMI).
Interrupt Mask, Vector, and
Flag Registers
752C–7531
7532–753F
“Reserved” indicates addresses that
are reserved for test and future expansion.
Reserved
Reserved
21
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
device reset and interrupts
The TMS320x240x software-programmable interrupt structure supports flexible on-chip and external interrupt
configurations to meet real-time interrupt-driven application requirements. The ’LF240x recognizes three types
of interrupt sources.
D
Reset (hardware- or software-initiated) is unarbitrated by the CPU and takes immediate priority over any
other executing functions. All maskable interrupts are disabled until the reset service routine enables them.
The ’LF240x devices have two sources of reset: an external reset pin and a watchdog timer timeout (reset).
D
Hardware-generated interrupts are requested by external pins or by on-chip peripherals. There are two
types:
–
External interrupts are generated by one of four external pins corresponding to the interrupts XINT1,
XINT2, PDPINTA, and PDPINTB. These four can be masked both by dedicated enable bits and by the
CPU’s interrupt mask register (IMR), which can mask each maskable interrupt line at the DSP core.
–
Peripheral interrupts are initiated internally by these on-chip peripheral modules: event manager A,
event manager B, SPI, SCI, WD, CAN, and ADC. They can be masked both by enable bits for each
event in each peripheral and by the CPU’s IMR, which can mask each maskable interrupt line at the DSP
core.
D
Software-generated interrupts for the ’LF240x devices include:
–
–
–
The INTR instruction. This instruction allows initialization of any ’LF240x interrupt with software. Its
operand indicates the interrupt vector location to which the CPU branches. This instruction globally
disables maskable interrupts (sets the INTM bit to 1).
The NMI instruction. This instruction forces a branch to interrupt vector location 24h. This instruction
globally disables maskable interrupts. ’240x devices do not have the NMI hardware signal, only
software activation is provided.
The TRAP instruction. This instruction forces the CPU to branch to interrupt vector location 22h. The
TRAP instruction does not disable maskable interrupts (INTM is not set to 1); therefore, when the CPU
branches to the interrupt service routine, that routine can be interrupted by the maskable hardware
interrupts.
–
An emulator trap. This interrupt can be generated with either an INTR instruction or a TRAP instruction.
Six core interrupts (INT1–INT6) are expanded using a peripheral interrupt expansion (PIE) module identical to
the ’F24x devices. The PIE manages all the peripheral interrupts from the ’240x peripherals and are grouped to
share the six-core level interrupts. Figure 7 shows the PIE block diagram for hardware-generated interrupts.
The PIE diagram (Figure 7) and the interrupt table (Table 3) explain the grouping and interrupt vector maps.
’LF240x devices have interrupts identical to the ’F24x devices and should be completely code-compatible.
’240x devices also have peripheral interrupts identical to the ’F24x – plus additional interrupts for new
peripherals such as event manager B. Though the new interrupts share the ’24x interrupt grouping, they all have
a unique vector to differentiate among the interrupts. See Table 3 for details.
22
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PDPINTA
PIE
IMR
IFR
PDPINTB
XINT2
ADCINT
XINT1
Level 1
IRQ GEN
SPIINT
RXINT
TXINT
CANMBINT
CANERINT
INT1
INT2
CMP1INT
CMP2INT
CMP3INT
CMP4INT
CMP5INT
CMP6INT
T1PINT
Level 2
IRQ GEN
T1CINT
T1UFINT
T1OFINT
T3PINT
CPU
T3CINT
T3UFINT
T3OFINT
T2PINT
T2CINT
INT3
T2UFINT
T2OFINT
T4PINT
Level 3
IRQ GEN
T4CINT
T4UFINT
T4OFINT
CAP1INT
CAP2INT
INT4
Level 4
IRQ GEN
CAP3INT
CAP4INT
CAP5INT
CAP6INT
SPIINT
RXINT
TXINT
INT5
Level 5
IRQ GEN
CANMBINT
CANERINT
INT6
ADCINT
XINT1
Level 6
IRQ GEN
XINT2
IACK
PIVR & Logic
PIRQR#
PIACK#
Data Addr
Bus Bus
Indicates change with respect to the TMS320F243/F241/C242 data sheets.
Interrupts from external interrupt pins. The remaining interrupts are internal to the peripherals.
Figure 7. Peripheral Interrupt Expansion (PIE) Module Block Diagram for Hardware-Generated Interrupts
23
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
interrupt request structure
Table 3. ’LF240x/’LC240x Interrupt Source Priority and Vectors
CPU
INTERRUPT
AND
VECTOR
ADDRESS
BIT
PERIPHERAL
INTERRUPT
VECTOR
SOURCE
PERIPHERAL
MODULE
INTERRUPT OVERALL
MASK-
ABLE?
POSITION IN
PIRQRx AND
PIACKRx
DESCRIPTION
NAME
PRIORITY
(PIV)
RSN
0000h
RS pin,
Watchdog
Reset from pin, watchdog
timeout
Reset
1
2
3
N/A
N/A
N/A
N
N
N
–
Reserved
NMI
CPU
Emulator trap
0026h
NMI
0024h
Nonmaskable Nonmaskable interrupt,
Interrupt
software interrupt only
PDPINTA
PDPINTB
4
5
0.0
2.0
0020h
0019h
Y
Y
EVA
Power device protection
interrupt pins
EVB
ADC interrupt in
high-priority mode
ADCINT
XINT1
6
7
0.1
0.2
0004h
0001h
Y
Y
ADC
External
External interrupt pins in high
Interrupt Logic priority
External
Interrupt Logic priority
External interrupt pins in high
XINT2
SPIINT
RXINT
8
9
0.3
0.4
0.5
0011h
0005h
0006h
Y
Y
Y
INT1
0002h
SPI
SCI
SPI interrupt pins in high priority
SCI receiver interrupt in
high-priority mode
10
SCI transmitter interrupt in
high-priority mode
TXINT
11
12
13
0.6
0.7
0.8
0007h
0040
0041
Y
Y
Y
SCI
CAN
CAN
CAN mailbox in high-priority
mode
CANMBINT
CANERINT
CAN error interrupt in
high-priority mode
CMP1INT
CMP2INT
CMP3INT
T1PINT
14
15
16
17
18
19
20
21
22
23
24
25
26
27
0.9
0.10
0.11
0.12
0.13
0.14
0.15
2.1
0021h
0022h
0023h
0027h
0028h
0029h
002Ah
0024h
0025h
0026h
002Fh
0030h
0031h
0032h
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
EVA
EVA
EVA
EVA
EVA
EVA
EVA
EVB
EVB
EVB
EVB
EVB
EVB
EVB
Compare 1 interrupt
Compare 2 interrupt
Compare 3 interrupt
Timer 1 period interrupt
Timer 1 compare interrupt
Timer 1 underflow interrupt
Timer 1 overflow interrupt
Compare 4 interrupt
INT2
0004h
T1CINT
T1UFINT
T1OFINT
CMP4INT
CMP5INT
CMP6INT
T3PINT
2.2
Compare 4 interrupt
2.3
Compare 4 interrupt
2.4
Timer 3 period interrupt
Timer 3 compare interrupt
Timer 3 underflow interrupt
Timer 3 overflow interrupt
T3CINT
2.5
T3UFINT
T3OFINT
2.6
2.7
†
Refer to the TMS320C240 DSP Controllers CPU, System, and Instruction Set Reference Guide (literature number SPRU160) and the
TMS320F243/’F241/’C242 DSP Controllers System and Peripherals User’s Guide (literature number SPRU276) for more information.
New peripheral interrupts and vectors with respect to the ’F243/’F241 devices.
24
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
interrupt request structure (continued)
Table 3.’LF240x/’LC240x Interrupt Source Priority and Vectors (Continued)
CPU
INTERRUPT
AND
VECTOR
ADDRESS
BIT
PERIPHERAL
SOURCE
INTERRUPT OVERALL
MASK-
ABLE?
POSITION IN
PIRQRx AND
PIACKRx
INTERRUPT
VECTOR
(PIV)
PERIPHERAL
MODULE
DESCRIPTION
NAME
PRIORITY
T2PINT
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
1.0
1.1
002Bh
002Ch
002Dh
002Eh
0039h
003Ah
003Bh
003Ch
0033h
0034h
0035h
0036h
0037h
0038h
0005h
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
EVA
EVA
EVA
EVA
EVB
EVB
EVB
EVB
EVA
EVA
EVA
EVB
EVB
EVB
SPI
Timer 2 period interrupt
Timer 2 compare interrupt
Timer 2 underflow interrupt
Timer 2 overflow interrupt
Timer 4 period interrupt
Timer 4 compare interrupt
Timer 4 underflow interrupt
Timer 4 overflow interrupt
Capture 1 interrupt
T2CINT
T2UFINT
T2OFINT
T4PINT
1.2
1.3
INT3
0006h
2.8
T4CINT
2.9
T4UFINT
T4OFINT
CAP1INT
CAP2INT
CAP3INT
CAP4INT
CAP5INT
CAP6INT
SPIINT
2.10
2.11
1.4
1.5
Capture 2 interrupt
1.6
Capture 3 interrupt
INT4
0008h
2.12
2.13
2.14
1.7
Capture 4 interrupt
Capture 5 interrupt
Capture 6 interrupt
SPI interrupt (low priority)
SCI receiver interrupt
(low-priority mode)
RXINT
43
44
45
46
47
48
49
1.8
1.9
0006h
0007h
0040h
0041h
0004h
0001h
0011h
Y
Y
Y
Y
Y
Y
Y
SCI
SCI
SCI transmitter interrupt
(low-priority mode)
TXINT
INT5
000Ah
CAN mailbox interrupt
(low-priority mode)
CANMBINT
CANERINT
ADCINT
XINT1
1.10
1.11
1.12
1.13
1.14
CAN
CAN
CAN error interrupt
(low-priority mode)
ADC interrupt
(low priority)
ADC
External
External interrupt pins
INT6
000Ch
Interrupt Logic (low-priority mode)
External External interrupt pins
Interrupt Logic (low-priority mode)
XINT2
Reserved
TRAP
000Eh
0022h
N/A
N/A
Y
CPU
CPU
Analysis interrupt
TRAP instruction
N/A
N/A
N/A
Phantom
Interrupt
Vector
N/A
0000h
N/A
CPU
Phantom interrupt vector
INT8–INT16
N/A
N/A
0010h–0020h
N/A
N/A
N/A
N/A
CPU
CPU
†
Software interrupt vectors
INT20–INT31
00028h–0603Fh
†
Refer to the TMS320C240 DSP Controllers CPU, System, and Instruction Set Reference Guide (literature number SPRU160) and the
TMS320F243/’F241/’C242 DSP Controllers System and Peripherals User’s Guide (literature number SPRU276) for more information.
New peripheral interrupts and vectors with respect to the ’F243/’F241 devices.
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DSP CPU Core
The TMS320x240x devices use an advanced Harvard-type architecture that maximizes processing power by
maintaining two separate memory bus structures — program and data — for full-speed execution. This multiple
bus structure allows data and instructions to be read simultaneously. Instructions support data transfers
between program memory and data memory. This architecture permits coefficients that are stored in program
memory to be read in RAM, thereby eliminating the need for a separate coefficient ROM. This, coupled with a
four-deep pipeline, allows the ’LF240x/’LC240x devices to execute most instructions in a single cycle. See the
architectural block diagram of the ’24x DSP Core for more information.
TMS320x240x instruction set
The ’x240x microprocessor implements a comprehensive instruction set that supports both numeric-intensive
signal-processing operations and general-purpose applications, such as multiprocessing and high-speed
control. Source code for the ’C1x and ’C2x DSPs is upwardly compatible with the ’x243/’x241 and ’240x devices.
For maximum throughput, the next instruction is prefetched while the current one is being executed. Because
the same data lines are used to communicate to external data, program, or I/O space, the number of cycles an
instruction requires to execute varies, depending upon whether the next data operand fetch is from internal or
external memory. Highest throughput is achieved by maintaining data memory on chip and using either internal
or fast external program memory.
addressing modes
The TMS320x240x instruction set provides four basic memory-addressing modes: direct, indirect, immediate,
and register.
In direct addressing, the instruction word contains the lower seven bits of the data memory address. This field
is concatenated with the nine bits of the data memory page pointer (DP) to form the 16-bit data memory address.
Therefore, in the direct-addressing mode, data memory is paged effectively with a total of 512 pages, with each
page containing 128 words.
Indirectaddressingaccessesdatamemorythroughtheauxiliaryregisters. Inthisaddressingmode, theaddress
of the instruction operand is contained in the currently selected auxiliary register. Eight auxiliary registers
(AR0–AR7) provide flexible and powerful indirect addressing. To select a specific auxiliary register, the auxiliary
register pointer (ARP) is loaded with a value from 0 to 7 for AR0 through AR7, respectively.
scan-based emulation
TMS320x2xx devices incorporate scan-based emulation logic for code-development and hardware-
development support. Scan-based emulation allows the emulator to control the processor in the system without
the use of intrusive cables to the full pinout of the device. The scan-based emulator communicates with the ’x2xx
by way of the IEEE 1149.1-compatible (JTAG) interface. The ’x240x DSPs, like the TMS320F243/241,
TMS320F206, TMS320C203, and TMS320LC203, do not include boundary scan. The scan chain of these
devices is useful for emulation function only.
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functional block diagram of the ’240x DSP CPU
Program Bus
IS
DS
PS
MUX
R/W
STRB
READY
XF
XTAL1
CLKOUT
XTAL2
NPAR
16
PC
PAR
MSTACK
MUX
RD
RS
WE
Stack 8 × 16
MP/MC
XINT[1–2]
2
FLASH EEPROM/
ROM
Program Control
(PCTRL)
16
16
A15–A0
16
16
16
16
D15–D0
16
16
Data Bus
16
16
16
16
16
3
9
7
16
16
LSB
from
IR
AR0(16)
AR1(16)
AR2(16)
AR3(16)
AR4(16)
AR5(16)
AR6(16)
AR7(16)
DP(9)
16
MUX
MUX
16
ARP(3)
3
3
9
TREG0(16)
ARB(3)
Multiplier
3
ISCALE (0–16)
PREG(32)
32
16
PSCALE (–6,ā0,ā1,ā4)
32
32
16
MUX
ARAU(16)
MUX
32
CALU(32)
32
32
16
Memory Map
Register
MUX
MUX
IMR (16)
IFR (16)
Data/Prog
DARAM
Data
C
ACCH(16)
ACCL(16)
32
GREG (16)
DARAM
B0 (256 × 16)
B2 (32 × 16)
B1 (256 × 16)
OSCALE (0–7)
16
MUX
16
16
16
NOTES: A. See Table 4 for symbol descriptions.
B. For clarity, the data and program buses are shown as single buses although they include address and data bits.
C. Refer to the TMS320F243, TMS320F241 DSP Controllers data sheet (literature number SPRS064), the TMS320C240,
TMS320F240DSP Controllers data sheet (literature number SPRS042), and the TMS320C240 DSP Controllers CPU, System, and
Instruction Set Reference Guide (literature number SPRU160) for CPU instruction set information.
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’240x legend for the internal hardware
Table 4. Legend for the ’240x DSP CPU Internal Hardware
SYMBOL
NAME
DESCRIPTION
32-bit register that stores the results and provides input for subsequent CALU operations. Also includes shift
and rotate capabilities
ACC
Accumulator
Auxiliary Register
Arithmetic Unit
An unsigned, 16-bit arithmetic unit used to calculate indirect addresses using the auxiliary registers as inputs
and outputs
ARAU
These 16-bit registers are used as pointers to anywhere within the data space address range. They are
operated upon by the ARAU and are selected by the auxiliary register pointer (ARP). AR0 can also be used
as an index value for AR updates of more than one and as a compare value to AR.
AUX
REGS
Auxiliary Registers
0–7
Register carry output from CALU. C is fed back into the CALU for extended arithmetic operation. The C bit
resides in status register 1 (ST1), and can be tested in conditional instructions. C is also used in accumulator
shifts and rotates.
C
Carry
32-bit-wide main arithmetic logic unit for the TMS320C2xx core. The CALU executes 32-bit operations in a
single machine cycle. CALU operates on data coming from ISCALE or PSCALE with data from ACC, and
provides status results to PCTRL.
Central Arithmetic
Logic Unit
CALU
If the on-chip RAM configuration control bit (CNF) is set to 0, the reconfigurable data dual-access RAM
(DARAM) block B0 is mapped to data space; otherwise, B0 is mapped to program space. Blocks B1 and B2
are mapped to data memory space only, at addresses 0300–03FF and 0060–007F, respectively. Blocks 0
and 1 contain 256 words, while block 2 contains 32 words.
DARAM
Dual-Access RAM
Data Memory
Page Pointer
The 9-bit DP register is concatenated with the seven least significant bits (LSBs) of an instruction word to
form a direct memory address of 16 bits. DP can be modified by the LST and LDP instructions.
DP
Global Memory
Allocation
Register
GREG specifies the size of the global data memory space. Since the global memory space is not used in
the ’240x devices, this register is reserved.
GREG
IMR
Interrupt Mask
Register
IMR individually masks or enables the seven interrupts.
Interrupt Flag
Register
The 7-bit IFR indicates that the TMS320C2xx has latched an interrupt from one of the seven maskable
interrupts.
IFR
INT#
Interrupt Traps
A total of 32 interrupts by way of hardware and/or software are available.
Input Data-Scaling 16- to 32-bit barrel left-shifter. ISCALE shifts incoming 16-bit data 0 to16 positions left, relative to the 32-bit
ISCALE
Shifter
output within the fetch cycle; therefore, no cycle overhead is required for input scaling operations.
16 × 16-bit multiplier to a 32-bit product. MPY executes multiplication in a single cycle. MPY operates either
signed or unsigned 2s-complement arithmetic multiply.
MPY
Multiplier
MSTACK provides temporary storage for the address of the next instruction to be fetched when program
address-generation logic is used to generate sequential addresses in data space.
MSTACK
MUX
Micro Stack
Multiplexer
Multiplexes buses to a common input
Next Program
Address Register
NPAR
NPAR holds the program address to be driven out on the PAB in the next cycle.
Output
Data-Scaling
Shifter
16- to 32-bit barrel left-shifter. OSCALE shifts the 32-bit accumulator output 0 to 7 bits left for quantization
management and outputs either the 16-bit high- or low-half of the shifted 32-bit data to the data-write data
bus (DWEB).
OSCALE
Program Address
Register
PAR holds the address currently being driven on PAB for as many cycles as it takes to complete all memory
operations scheduled for the current bus cycle.
PAR
PC increments the value from NPAR to provide sequential addresses for instruction-fetching and sequential
data-transfer operations.
PC
Program Counter
Program
Controller
PCTRL
PCTRL decodes instruction, manages the pipeline, stores status, and decodes conditional operations.
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’240x legend for the internal hardware (continued)
Table 4. Legend for the ’240x DSP CPU Internal Hardware (Continued)
SYMBOL
NAME
DESCRIPTION
32-bit register holds results of 16 × 16 multiply
PREG
Product Register
0-, 1-, or 4-bit left shift, or 6-bit right shift of multiplier product. The left-shift options are used to manage the
additional sign bits resulting from the 2s-complement multiply. The right-shift option is used to scale down
the number to manage overflow of product accumulation in the CALU. PSCALE resides in the path from the
32-bit product shifter and from either the CALU or the data-write data bus (DWEB), and requires no cycle
overhead.
Product-Scaling
Shifter
PSCALE
STACK is a block of memory used for storing return addresses for subroutines and interrupt-service
routines, or for storing data. The ’C2xx stack is 16-bit wide and eight-level deep.
STACK
TREG
Stack
Temporary
Register
16-bit register holds one of the operands for the multiply operations. TREG holds the dynamic shift count
for the LACT, ADDT, and SUBT instructions. TREG holds the dynamic bit position for the BITT instruction.
status and control registers
Two status registers, ST0 and ST1, contain the status of various conditions and modes. These registers can
be stored into data memory and loaded from data memory, thus allowing the status of the machine to be saved
and restored for subroutines.
The load status register (LST) instruction is used to write to ST0 and ST1. The store status register (SST)
instruction is used to read from ST0 and ST1 — except for the INTM bit, which is not affected by the LST
instruction. The individual bits of these registers can be set or cleared when using the SETC and CLRC
instructions. Figure8showstheorganizationofstatusregistersST0andST1, indicatingallstatusbitscontained
in each. Several bits in the status registers are reserved and are read as logic 1s. Table 5 lists status register
field definitions.
15
13
12
11
10
1
9
8
0
ST0
ST1
ARP
ARB
OV
OVM
INTM
DP
15
13
12
11
10
9
8
1
7
1
6
1
5
1
4
3
1
2
1
1
0
CNF
TC
SXM
C
XF
PM
Figure 8. Organization of Status Registers ST0 and ST1
Table 5. Status Register Field Definitions
FIELD
FUNCTION
Auxiliary register pointer buffer. When the ARP is loaded into ST0, the old ARP value is copied to the ARB except during an LST
instruction. When the ARB is loaded by way of an LST #1 instruction, the same value is also copied to the ARP.
ARB
Auxiliary register (AR) pointer. ARP selects the AR to be used in indirect addressing. When the ARP is loaded, the old ARP value
is copied to the ARB register. ARP can be modified by memory-reference instructions when using indirect addressing, and by the
LARP, MAR, and LST instructions. The ARP is also loaded with the same value as ARB when an LST #1 instruction is executed.
ARP
Carry bit. C is set to 1 if the result of an addition generates a carry, or reset to 0 if the result of a subtraction generates a borrow.
Otherwise, C is reset after an addition or set after a subtraction, except if the instruction is ADD or SUB with a 16-bit shift. In these
cases, ADD can only set and SUB can only reset the carry bit, but cannot affect it otherwise. The single-bit shift and rotate
instructions also affect C, as well as the SETC, CLRC, and LST #1 instructions. Branch instructions have been provided to branch
on the status of C. C is set to 1 on a reset.
C
On-chip RAM configuration control bit. If CNF is set to 0, the reconfigurable data dual-access RAM blocks are mapped to data
space; otherwise, they are mapped to program space. The CNF can be modified by the SETC CNF, CLRC CNF, and LST #1
instructions. RS sets the CNF to 0.
CNF
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status and control registers (continued)
Table 5. Status Register Field Definitions (Continued)
FIELD
DP
FUNCTION
Data memory page pointer. The 9-bit DP register is concatenated with the seven LSBs of an instruction word to form a direct
memory address of 16 bits. DP can be modified by the LST and LDP instructions.
Interruptmode bit. When INTM is set to 0, all unmasked interrupts are enabled. When set to 1, all maskable interrupts are disabled.
INTM is set and reset by the SETC INTM and CLRC INTM instructions. RS also sets INTM. INTM has no effect on the unmaskable
RS and NMI interrupts. Note that INTM is unaffected by the LST instruction. This bit is set to 1 by reset. It is also set to 1 when
a maskable interrupt trap is taken.
INTM
Overflow flag bit. As a latched overflow signal, OV is set to 1 when overflow occurs in the arithmetic logic unit (ALU). Once an
overflow occurs, the OV remains set until a reset, BCND/D on OV/NOV, or LST instruction clears OV.
OV
Overflow mode bit. When OVM is set to 0, overflowed results overflow normally in the accumulator. When set to 1, the accumulator
is set to either its most positive or negative value upon encountering an overflow. The SETC and CLRC instructions set and reset
this bit, respectively. LST can also be used to modify the OVM.
OVM
Product shift mode. If these two bits are 00, the multiplier’s 32-bit product is loaded into the ALU with no shift. If PM = 01, the PREG
output is left-shifted one place and loaded into the ALU, with the LSB zero-filled. If PM = 10, the PREG output is left-shifted by four
bits and loaded into the ALU, with the LSBs zero-filled. PM = 11 produces a right shift of six bits, sign-extended. Note that the PREG
contents remain unchanged. The shift takes place when transferring the contents of the PREG to the ALU. PM is loaded by the
SPM and LST #1 instructions. PM is cleared by RS.
PM
Sign-extensionmode bit. SXM = 1 produces sign extension on data as it is passed into the accumulator through the scaling shifter.
SXM = 0 suppresses sign extension. SXM does not affect the definitions of certain instructions; for example, the ADDS instruction
suppresses sign extension regardless of SXM. SXM is set by the SETC SXM instruction and reset by the CLRC SXM instruction
and can be loaded by the LST #1 instruction. SXM is set to 1 by reset.
SXM
Test/control flag bit. TC is affected by the BIT, BITT, CMPR, LST #1, and NORM instructions. TC is set to a 1 if a bit tested by BIT
or BITT is a 1, if a compare condition tested by CMPR exists between AR (ARP) and AR0, if the exclusive-OR function of the two
most significant bits (MSBs) of the accumulator is true when tested by a NORM instruction. The conditional branch, call, and return
instructions can execute based on the condition of TC.
TC
XF
XF pin status bit. XF indicates the state of the XF pin, a general-purpose output pin. XF is set by the SETC XF instruction and reset
by the CLRC XF instruction. XF is set to 1 by reset.
central processing unit
The TMS320x240x central processing unit (CPU) contains a 16-bit scaling shifter, a 16 x 16-bit parallel
multiplier, a 32-bit central arithmetic logic unit (CALU), a 32-bit accumulator, and additional shifters at the
outputs of both the accumulator and the multiplier. This section describes the CPU components and their
functions. The functional block diagram shows the components of the CPU.
input scaling shifter
The TMS320x240x provides a scaling shifter with a 16-bit input connected to the data bus and a 32-bit output
connected to the CALU. This shifter operates as part of the path of data coming from program or data space
to the CALU and requires no cycle overhead. It is used to align the 16-bit data coming from memory to the 32-bit
CALU. This is necessary for scaling arithmetic as well as aligning masks for logical operations.
The scaling shifter produces a left shift of 0 to 16 on the input data. The LSBs of the output are filled with zeros;
the MSBs can either be filled with zeros or sign-extended, depending upon the value of the SXM bit
(sign-extension mode) of status register ST1. The shift count is specified by a constant embedded in the
instruction word or by a value in TREG. The shift count in the instruction allows for specific scaling or alignment
operations specific to that point in the code. The TREG base shift allows the scaling factor to be adaptable to
the system’s performance.
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multiplier
The TMS320x240x devices use a 16 x 16-bit hardware multiplier that is capable of computing a signed or an
unsigned32-bitproductinasinglemachinecycle. Allmultiplyinstructions, excepttheMPYU(multiplyunsigned)
instruction, perform a signed multiply operation. That is, two numbers being multiplied are treated as
2s-complement numbers, and the result is a 32-bit 2s-complement number. There are two registers associated
with the multiplier, as follow:
D
D
16-bit temporary register (TREG) that holds one of the operands for the multiplier
32-bit product register (PREG) that holds the product
Four product-shift modes (PM) are available at the PREG output (PSCALE). These shift modes are useful for
performing multiply/accumulate operations, performing fractional arithmetic, or justifying fractional products.
The PM field of status register ST1 specifies the PM shift mode, as shown in Table 6.
Table 6. PSCALE Product-Shift Modes
PM
00
SHIFT
No shift
Left 1
DESCRIPTION
Product feed to CALU or data bus with no shift
01
Removes the extra sign bit generated in a 2s-complement multiply to produce a Q31 product
Removesthe extra 4signbitsgeneratedina16x132s-complementmultiplytoaproduceaQ31productwhen
using the multiply-by-a-13-bit constant
10
11
Left 4
Right 6
Scales the product to allow up to 128 product accumulation without the possibility of accumulator overflow
The product can be shifted one bit to compensate for the extra sign bit gained in multiplying two 16-bit
2s-complement numbers (MPY instruction). A four-bit shift is used in conjunction with the MPY instruction with
a short immediate value (13 bits or less) to eliminate the four extra sign bits gained in multiplying a 16-bit number
by a 13-bit number. Finally, the output of PREG can be right-shifted 6 bits to enable the execution of up to
128 consecutive multiply/accumulates without the possibility of overflow.
The LT (load TREG) instruction normally loads TREG to provide one operand (from the data bus), and the MPY
(multiply) instruction provides the second operand (also from the data bus). A multiplication also can be
performed with a 13-bit immediate operand when using the MPY instruction. Then, a product is obtained every
two cycles. When the code is executing multiple multiplies and product sums, the CPU supports the pipelining
of the TREG load operations with CALU operations using the previous product. The pipeline operations that
run in parallel with loading the TREG include: load ACC with PREG (LTP); add PREG to ACC (LTA); add PREG
to ACC and shift TREG input data (DMOV) to next address in data memory (LTD); and subtract PREG from ACC
(LTS).
Two multiply/accumulate instructions (MAC and MACD) fully utilize the computational bandwidth of the
multiplier, allowing both operands to be processed simultaneously. The data for these operations can be
transferred to the multiplier each cycle by way of the program and data buses. This facilitates single-cycle
multiply/accumulates when used with the repeat (RPT) instruction. In these instructions, the coefficient
addresses are generated by program address generation (PAGEN) logic, while the data addresses are
generated by data address generation (DAGEN) logic. This allows the repeated instruction to access the values
from the coefficient table sequentially and step through the data in any of the indirect addressing modes.
The MACD instruction, when repeated, supports filter constructs (weighted running averages) so that as the
sum-of-products is executed, the sample data is shifted in memory to make room for the next sample and to
throw away the oldest sample.
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multiplier (continued)
The MPYU instruction performs an unsigned multiplication, which greatly facilitates extended-precision
arithmeticoperations. TheunsignedcontentsofTREGaremultipliedbytheunsignedcontentsoftheaddressed
data memory location, with the result placed in PREG. This process allows the operands of greater than 16 bits
to be broken down into 16-bit words and processed separately to generate products of greater than 32 bits. The
SQRA (square/add) and SQRS (square/subtract) instructions pass the same value to both inputs of the
multiplier for squaring a data memory value.
After the multiplication of two 16-bit numbers, the 32-bit product is loaded into the 32-bit product register
(PREG). The product from PREG can be transferred to the CALU or to data memory by way of the SPH (store
product high) and SPL (store product low) instructions. Note: the transfer of PREG to either the CALU or data
bus passes through the PSCALE shifter, and therefore is affected by the product shift mode defined by PM. This
is important when saving PREG in an interrupt-service-routine context save as the PSCALE shift effects cannot
be modeled in the restore operation. PREG can be cleared by executing the MPY #0 instruction. The product
register can be restored by loading the saved low half into TREG and executing a MPY #1 instruction. The high
half, then, is loaded using the LPH instruction.
central arithmetic logic unit
The TMS320x240x central arithmetic logic unit (CALU) implements a wide range of arithmetic and logical
functions, the majority of which execute in a single clock cycle. This ALU is referred to as central to differentiate
it from a second ALU used for indirect-address generation called the auxiliary register arithmetic unit (ARAU).
Once an operation is performed in the CALU, the result is transferred to the accumulator (ACC) where additional
operations, such as shifting, can occur. Data that is input to the CALU can be scaled by ISCALE when coming
from one of the data buses (DRDB or PRDB) or scaled by PSCALE when coming from the multiplier.
The CALU is a general-purpose ALU that operates on 16-bit words taken from data memory or derived from
immediate instructions. In addition to the usual arithmetic instructions, the CALU can perform Boolean
operations, facilitating the bit-manipulation ability required for a high-speed controller. One input to the CALU
is always provided from the accumulator, and the other input can be provided from the product register (PREG)
of the multiplier or the output of the scaling shifter (that has been read from data memory or from the ACC). After
the CALU has performed the arithmetic or logical operation, the result is stored in the accumulator.
The TMS320x240x devices support floating-point operations for applications requiring a large dynamic range.
The NORM (normalization) instruction is used to normalize fixed-point numbers contained in the accumulator
by performing left shifts. The four bits of the TREG define a variable shift through the scaling shifter for the
LACT/ADDT/SUBT (load/add to /subtract from accumulator with shift specified by TREG) instructions. These
instructions are useful in floating-point arithmetic where a number needs to be denormalized — that is,
floating-point to fixed-point conversion. They are also useful in the execution of an automatic gain control (AGC)
going into a filter. The BITT (bit test) instruction provides testing of a single bit of a word in data memory based
on the value contained in the four LSBs of TREG.
The CALU overflow saturation mode can be enabled/disabled by setting/resetting the OVM bit of ST0. When
the CALU is in the overflow saturation mode and an overflow occurs, the overflow flag is set and the accumulator
is loaded with either the most positive or the most negative value representable in the accumulator, depending
on the direction of the overflow. The value of the accumulator at saturation is 07FFFFFFFh (positive) or
080000000h (negative). If the OVM (overflow mode) status register bit is reset and an overflow occurs, the
overflowed results are loaded into the accumulator with modification. (Note that logical operations cannot result
in overflow.)
The CALU can execute a variety of branch instructions that depend on the status of the CALU and the
accumulator. These instructions can be executed conditionally based on any meaningful combination of these
status bits. For overflow management, these conditions include OV (branch on overflow) and EQ (branch on
accumulator equal to zero). In addition, the BACC (branch to address in accumulator) instruction provides the
ability to branch to an address specified by the accumulator (computed goto). Bit test instructions (BIT and
BITT), which do not affect the accumulator, allow the testing of a specified bit of a word in data memory.
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central arithmetic logic unit (continued)
TheCALUalsohasanassociatedcarrybitthatissetorresetdependingonvariousoperationswithinthedevice.
The carry bit allows more efficient computation of extended-precision products and additions or subtractions.
It is also useful in overflow management. The carry bit is affected by most arithmetic instructions as well as the
single-bit shift and rotate instructions. It is not affected by loading the accumulator, logical operations, or other
such non-arithmetic or control instructions.
The ADDC (add to accumulator with carry) and SUBB (subtract from accumulator with borrow) instructions use
the previous value of carry in their addition/subtraction operation.
The one exception to the operation of the carry bit is in the use of ADD with a shift count of 16 (add to high
accumulator) and SUB with a shift count of 16 (subtract from high accumulator) instructions. This case of the
ADD instruction can set the carry bit only if a carry is generated, and this case of the SUB instruction can reset
the carry bit only if a borrow is generated; otherwise, neither instruction affects it.
Two conditional operands, C and NC, are provided for branching, calling, returning, and conditionallyexecuting,
based upon the status of the carry bit. The SETC, CLRC, and LST #1 instructions also can be used to load the
carry bit. The carry bit is set to one on a hardware reset.
accumulator
The 32-bit accumulator is the registered output of the CALU. It can be split into two 16-bit segments for storage
in data memory. Shifters at the output of the accumulator provide a left shift of 0 to 7 places. This shift is
performed while the data is being transferred to the data bus for storage. The contents of the accumulator
remain unchanged. When the postscaling shifter is used on the high word of the accumulator (bits 16–31), the
MSBs are lost and the LSBs are filled with bits shifted in from the low word (bits 0–15). When the postscaling
shifter is used on the low word, the LSBs are zero-filled.
The SFL and SFR (in-place one-bit shift to the left/right) instructions and the ROL and ROR (rotate to the
left/right) instructions implement shifting or rotating of the contents of the accumulator through the carry bit. The
SXM bit affects the definition of the SFR (shift accumulator right) instruction. When SXM = 1, SFR performs an
arithmetic right shift, maintaining the sign of the accumulator data. When SXM = 0, SFR performs a logical shift,
shiftingouttheLSBsandshiftinginazerofortheMSB. TheSFL(shiftaccumulatorleft)instructionisnotaffected
by the SXM bit and behaves the same in both cases, shifting out the MSB and shifting in a zero. Repeat (RPT)
instructions can be used with the shift and rotate instructions for multiple-bit shifts.
auxiliary registers and auxiliary-register arithmetic unit (ARAU)
The ’240x provides a register file containing eight auxiliary registers (AR0–AR7). The auxiliary registers are
used for indirect addressing of the data memory or for temporary data storage. Indirect auxiliary-register
addressing allows placement of the data memory address of an instruction operand into one of the auxiliary
registers. These registers are referenced with a 3-bit auxiliary register pointer (ARP) that is loaded with a value
from0through7, designatingAR0throughAR7, respectively. TheauxiliaryregistersandtheARPcanbeloaded
from data memory, the ACC, the product register, or by an immediate operand defined in the instruction. The
contents of these registers also can be stored in data memory or used as inputs to the CALU.
The auxiliary register file (AR0–AR7) is connected to the ARAU. The ARAU can autoindex the current auxiliary
register while the data memory location is being addressed. Indexing either by ±1 or by the contents of the AR0
register can be performed. As a result, accessing tables of information does not require the CALU for address
manipulation; therefore, the CALU is free for other operations in parallel.
33
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
internal memory
The TMS320x240x devices are configured with the following memory modules:
D
D
D
D
D
Dual-access random-access memory (DARAM)
Single-access random-access memory (SARAM)
Flash
ROM
Boot ROM
dual-access RAM (DARAM)
There are 544 words × 16 bits of DARAM on the ’240x devices. The ’240x DARAM allows writes to and reads
from the RAM in the same cycle. The DARAM is configured in three blocks: block 0 (B0), block 1 (B1), and
block 2 (B2). Block 1 contains 256 words and Block 2 contains 32 words, and both blocks are located only in
data memory space. Block 0 contains 256 words, and can be configured to reside in either data or program
memory space. The SETC CNF (configure B0 as data memory) and CLRC CNF (configure B0 as program
memory) instructions allow dynamic configuration of the memory maps through software.
When using on-chip RAM or high-speed external memory, the ’240x runs at full speed with no wait states. The
ability of the DARAM to allow two accesses to be performed in one cycle, coupled with the parallel nature of
the ’240x architecture, enables the device to perform three concurrent memory accesses in any given machine
cycle. Externally, the READY line or on-chip software wait-state generator can be used to interface the ’240x
to slower, less expensive external memory. Downloading programs from slow off-chip memory to on-chip RAM
can speed processing while cutting system costs.
single-access RAM (SARAM)
†
There are 2K words × 16 bits of SARAM on some of the ’240x devices. The ’240x SARAM allows writes to and
reads from the RAM in the same cycle. The PON and DON bits select SARAM (2K) mapping in program space,
data space, or both. See Table 18 for details on the SCSR2 register and the PON and DON bits. At reset, these
bits are 11, and the on-chip SARAM is mapped in both the program and data spaces. The SARAM addresses
(8000h in program memory and 0800h in data memory) are accessible in external memory space, if the on-chip
SARAM is not enabled.
flash EEPROM
Flash EEPROM provides an attractive alternative to masked program ROM. Like ROM, flash is nonvolatile.
However, it has the advantage of “in-target” reprogrammability. The ’LF240x incorporates one 32K ꢀ 16-bit
flash EEPROM module in program space. This type of memory expands the capabilities of the ’LF240x in the
areas of prototyping, early field-testing, and single-chip applications. The flash module has multiple sectors that
can be individually protected while erasing or programming. The sector size is non-uniform and partitioned as
4K/12K/12K/4K sectors.
Unlike most discrete flash memory, the ’LF240x flash does not require a dedicated state machine, because the
algorithms for programming and erasing the flash are executed by the DSP core. This enables several
advantages, including: reduced chip size and sophisticated, adaptive algorithms. For production programming,
‡
the IEEE Standard 1149.1 (JTAG) scan port provides easy access to the on-chip RAM for downloading the
algorithms and flash code. This flash requires 5 V for programming (at V
at zero wait state while the device is powered at 3.3 V.
pin only) the array. The flash runs
CCP
†
‡
See Table 1 for device-specific features.
IEEE Standard 1149.1–1990, IEEE Standard Test Access Port.
34
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
ROM
The ’LC240x devices contain mask-programmable ROM located in program memory space. Customers can
arrange to have this ROM programmed with contents unique to any particular application. See Table 1 for the
ROM memory capacity of each ’LC240x device.
boot ROM
Boot ROM is a 256-word ROM memory mapped in program space 0000–00FF. This ROM will be enabled if the
BOOTEN pin is low during reset. The BOOT_EN bit (bit 3 of the SCSR2 register) will be set to 1 if the BOOTEN
pin is low at reset. Boot ROM can also be enabled by writing 1 to the SCSR2.3 bit and disabled by writing 0
to this bit.
The boot ROM has a generic bootloader to transfer code through SCI or SPI ports. The incoming code should
disable the BOOT_ROM bit by writing 0 to bit 3 of the SCSR2 register, or else, the whole flash array will not be
enabled.
35
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PERIPHERALS
The integrated peripherals of the TMS320x240x are described in the following subsections:
D
D
D
D
D
D
D
D
D
Two event-manager modules (EVA, EVB)
Enhanced analog-to-digital converter (ADC) module
Controller area network (CAN) module
Serial communications interface (SCI) module
Serial peripheral interface (SPI) module
PLL-based clock module
Digital I/O and shared pin functions
External memory interfaces (’LF2407 only)
Watchdog (WD) timer module
event manager modules (EVA, EVB)
The event-manager modules include general-purpose (GP) timers, full-compare/PWM units, capture units, and
quadrature-encoder pulse (QEP) circuits. EVA’s and EVB’s timers, compare units, and capture units function
identically. However, timer/unit names differ for EVA and EVB. Table 7 shows the module and signal names
used. Table 7 shows the features and functionality available for the event-manager modules and highlights EVA
nomenclature.
Event managers A and B have identical peripheral register sets with EVA starting at 7400h and EVB starting
at 7500h. The paragraphs in this section describe the function of GP timers, compare units, capture units, and
QEPs using EVA nomenclature. These paragraphs are applicable to EVB with regard to function—however,
module/signal names would differ.
Table 7. Module and Signal Names for EVA and EVB
EVENT MANAGER MODULES
EVA MODULE
SIGNAL
EVB MODULE
SIGNAL
Timer 1
Timer 2
T1PWM/T1CMP
T2PWM/T2CMP
Timer 3
Timer 4
T3PWM/T3CMP
T4PWM/T4CMP
GP Timers
Compare 1
Compare 2
Compare 3
PWM1/2
PWM3/4
PWM5/6
Compare 4
Compare 5
Compare 6
PWM7/8
PWM9/10
PWM11/12
Compare Units
Capture Units
Capture 1
Capture 2
Capture 3
CAP1
CAP2
CAP3
Capture 4
Capture 5
Capture 6
CAP4
CAP5
CAP6
QEP1
QEP2
QEP1
QEP2
QEP3
QEP4
QEP3
QEP4
QEP
Direction
External Clock
TDIRA
TCLKINA
Direction
External Clock
TDIRB
TCLKINB
External Inputs
36
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
event-manager modules (EVA, EVB) (continued)
’240x DSP Core
Data Bus
16
ADDR Bus Reset
Clock
INT2,3,4
3
16
16
EV Control Registers
and Control Logic
ADC Start of
Conversion
Output
Logic
16
16
GP Timer 1
Compare
T1CMP/
T1PWM
†
TDIR
TCLKIN
GP Timer 1
CLKOUT
(Internal)
Prescaler
16
16
T1CON[4,5]
T1CON[8,9,10]
PWM1
PWM6
SVPWM
State
3
3
3
Full-Compare
Units
Deadband
Units
Output
Logic
Machine
16
16
T2CMP/
T2PWM
Output
Logic
GP Timer 2
Compare
TCLKIN
CLKOUT
(Internal)
GP Timer 2
Prescaler
T2CON[8,9,10]
T2CON[4,5]
16
TDIR
DIR
16
Clock
QEP
Circuit
CAPCON[14,13]
MUX
2
2
CAP1/QEP1
CAP2/QEP2
2
16
Capture Units
CAP3
16
†
’2402 devices do not support external direction control. TDIR is not available.
Figure 9. Event-Manager Block Diagram
37
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
general-purpose (GP) timers
There are two GP timers: The GP timer x (x = 1 or 2 for EVA; x = 3 or 4 for EVB) includes:
D
D
D
D
D
D
D
A 16-bit timer, up-/down-counter, TxCNT, for reads or writes
A 16-bit timer-compare register, TxCMPR (double-buffered with shadow register), for reads or writes
A 16-bit timer-period register, TxPR (double-buffered with shadow register), for reads or writes
A 16-bit timer-control register,TxCON, for reads or writes
Selectable internal or external input clocks
A programmable prescaler for internal or external clock inputs
Control and interrupt logic, for four maskable interrupts: underflow, overflow, timer compare, and period
interrupts
D
A selectable direction input pin (TDIR) (to count up or down when directional up-/down-count mode is
selected)
The GP timers can be operated independently or synchronized with each other. The compare register
associated with each GP timer can be used for compare function and PWM-waveform generation. There are
three continuous modes of operations for each GP timer in up- or up/down-counting operations. Internal or
external input clocks with programmable prescaler are used for each GP timer. GP timers also provide the time
base for the other event-manager submodules: GP timer 1 for all the compares and PWM circuits, GP timer 2/1
for the capture units and the quadrature-pulse counting operations. Double-buffering of the period and compare
registers allows programmable change of the timer (PWM) period and the compare/PWM pulse width as
needed.
full-compare units
There are three full-compare units on each event manager. These compare units use GP timer1 as the time
base and generate six outputs for compare and PWM-waveform generation using programmable deadband
circuit. The state of each of the six outputs is configured independently. The compare registers of the compare
units are double-buffered, allowing programmable change of the compare/PWM pulse widths as needed.
programmable deadband generator
The deadband generator circuit includes three 8-bit counters and an 8-bit compare register. Desired deadband
values (from 0 to 24 µs) can be programmed into the compare register for the outputs of the three compare units.
The deadband generation can be enabled/disabled for each compare unit output individually. The
deadband-generator circuit produces two outputs (with or without deadband zone) for each compare unit output
signal. The output states of the deadband generator are configurable and changeable as needed by way of the
double-buffered ACTR register.
PWM waveform generation
Up to eight PWM waveforms (outputs) can be generated simultaneously by each event manager: three
independent pairs (six outputs) by the three full-compare units with programmable deadbands, and two
independent PWMs by the GP-timer compares.
38
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PWM characteristics
Characteristics of the PWMs are as follows:
D
D
D
D
D
D
D
16-bit registers
Programmable deadband for the PWM output pairs, from 0 to 24 µs
Minimum deadband width of 50 ns
Change of the PWM carrier frequency for PWM frequency wobbling as needed
Change of the PWM pulse widths within and after each PWM period as needed
External-maskable power and drive-protection interrupts
Pulse-pattern-generator circuit, for programmable generation of asymmetric, symmetric, and four-space
vector PWM waveforms
D
Minimized CPU overhead using auto-reload of the compare and period registers
capture unit
The capture unit provides a logging function for different events or transitions. The values of the GP timer 2
counter are captured and stored in the two-level-deep FIFO stacks when selected transitions are detected on
capture input pins, CAPx (x = 1, 2, or 3 for EVA; and x = 4, 5, or 6 for EVB). The capture unit consists of three
capture circuits.
D
Capture units include the following features:
–
–
One 16-bit capture control register, CAPCON (R/W)
One 16-bit capture FIFO status register, CAPFIFO (eight MSBs are read-only, eight LSBs are
write-only)
–
–
–
Selection of GP timer 2 as the time base
Three 16-bit 2-level-deep FIFO stacks, one for each capture unit
Three Schmitt-triggered capture input pins (CAP1, CAP2, and CAP3)—one input pin per capture unit.
[All inputs are synchronized with the device (CPU) clock. In order for a transition to be captured, the
input must hold at its current level to meet two rising edges of the device clock. The input pins CAP1 and
CAP2 can also be used as QEP inputs to the QEP circuit.]
–
–
User-specified transition (rising edge, falling edge, or both edges) detection
Three maskable interrupt flags, one for each capture unit
quadrature-encoder pulse (QEP) circuit
Two capture inputs (CAP1 and CAP2 for EVA; CAP4 and CAP5 for EVB) can be used to interface the on-chip
QEP circuit with a quadrature encoder pulse. Full synchronization of these inputs is performed on-chip.
Direction or leading-quadrature pulse sequence is detected, and GP timer 2 is incremented or decremented
by the rising and falling edges of the two input signals (four times the frequency of either input pulse).
39
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DSP CONTROLLERS
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enhanced analog-to-digital converter (ADC) module
A simplified functional block diagram of the ADC module is shown in Figure 10. The ADC module consists of
a 10-bit ADC with a built-in sample-and-hold (S/H) circuit. Functions of the ADC module include:
D
D
D
D
10-bit ADC core with built-in S/H
Fast conversion time (S/H + Conversion) of 500 ns
16-channel, muxed inputs
Autosequencing capability provides up to 16 “autoconversions” in a single session. Each conversion can
be programmed to select any 1 of 16 input channels
D
Sequencer can be operated as two independent 8-state sequencers or as one large 16-state sequencer
(i.e., two cascaded 8-state sequencers)
D
D
Sixteen result registers (individually addressable) to store conversion values
Multiple triggers as sources for the start-of-conversion (SOC) sequence
–
–
–
–
S/W – software immediate start
EVA – Event manager A (multiple event sources within EVA)
EVB – Event manager B (multiple event sources within EVB)
Ext – External pin (ADCSOC)
D
D
Flexible interrupt control allows interrupt request on every end of sequence (EOS) or every other EOS
Sequencer can operate in “start/stop” mode, allowing multiple “time-sequenced triggers” to synchronize
conversions
D
D
D
D
EVA and EVB triggers can operate independently in dual-sequencer mode
Sample-and-hold (S/H) acquisition time window has separate prescale control
Built-in calibration mode
Built-in self-test mode
The ADC module in the ’240x has been enhanced to provide flexible interface to event managers A and B. The
ADC interface is built around a fast, 10-bit ADC module with total conversion time of 500 ns (S/H + conversion).
The ADC module has 16 channels, configurable as two independent 8-channel modules to service event
managers A and B. The two independent 8-channel modules can be cascaded to form a 16-channel module.
Figure 10 shows the block diagram of the ’240x ADC module.
The two 8-channel modules have the capability to autosequence a series of conversions, each module has the
choice of selecting any one of the respective eight channels available through an analog mux. In the cascaded
mode, the autosequencer functions as a single 16-channel sequencer. On each sequencer, once the
conversion is complete, the selected channel value is stored in its respective RESULT register. Autosequencing
allows the system to convert the same channel multiple times, allowing the user to perform oversampling
algorithms. This gives increased resolution over traditional single-sampled conversion results.
40
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DSP CONTROLLERS
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enhanced analog-to-digital converter (ADC) module (continued)
Result Registers
Analog MUX
70A8h
Result Reg 0
Result Reg 1
ADCIN 0
10-Bit
ADC
Module
(500 ns)
ADCIN 7
ADCIN 8
Result Reg 7
Result Reg 8
70AFh
70B0h
ADCIN 15
Result Reg 15
70B7h
ADC Control Registers
S/W
EVA
S/W
EVB
SOC
SOC
Sequencer 1
Sequencer 2
ADCSOC Pin
Figure 10. Block Diagram of the ’240x ADC Module
controller area network (CAN) module
The CAN module is a full-CAN controller designed as a 16-bit peripheral module and supports the following
features:
D
CAN specification 2.0B (active)
–
–
Standard data and remote frames
Extended data and remote frames
D
Six mailboxes for objects of 0- to 8-byte data length
–
–
Two receive mailboxes, two transmit mailboxes
Two configurable transmit/receive mailboxes
D
D
Local acceptance mask registers for mailboxes 0 and 1 and mailboxes 2 and 3
Configurable standard or extended message identifier
Programmable global mask registers for objects 1 and 2 and one for object 3 and 4
Configurable standard or extended message identifier
–
–
D
D
D
D
Programmable bit rate
Programmable interrupt scheme
Readable error counters
Self-test mode
In this mode, the CAN module operates in a loop-back fashion, receiving its own transmitted message.
41
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DSP CONTROLLERS
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controller area network (CAN) module (continued)
The CAN module is a 16-bit peripheral. The accesses are split into the control/status-registers accesses and
the mailbox-RAM accesses.
CAN peripheral registers: The CPU can access the CAN peripheral registers only using 16-bit write accesses.
The CAN peripheral always presents full 16-bit data to the CPU bus during read cycles.
CAN controller architecture
Figure 11 shows the basic architecture of the CAN controller through this block diagram of the CAN Peripherals.
CAN Module
Transmit Buffer
Control/Status Registers
Interrupt Logic
TxD
RxD
Control Bus
CAN
CAN
Core
CPU Interface/
Memory Management Unit
CPU
Transceiver
Temporary Receive Buffer
mailbox 0
mailbox 1
mailbox 2
mailbox 3
mailbox 4
mailbox 5
R
Data
ID
R
T/R
T/R
T
T
Matchid
Acceptance Filter
Control Logic
RAM 48x16
Figure 11. CAN Module Block Diagram
The mailboxes are situated in one 48-word x 16-bit RAM. It can be written to or read by the CPU or the CAN.
The CAN write or read access, as well as the CPU read access, needs one clock cycle. The CPU write access
needs two clock cycles. In these two clock cycles, the CAN performs a read-modify-write cycle and, therefore,
inserts one wait state for the CPU.
Address bit 0 of the address bus used when accessing the RAM decides if the lower (0) or the higher (1)
16-bit word of the 32-bit word is taken. The RAM location is determined by the upper bits 5 to 1 of the address
bus.
Table 9 shows the mailbox locations in RAM. One half-word has 16 bits.
CAN interrupt logic
There are two interrupt requests from the CAN module to the peripheral interrupt expansion (PIE) controller:
the mailbox interrupt and the error interrupt. Both interrupts can assert either a high-priority request or a
low-priority request to the CPU. Since CAN mailboxes can generate multiple interrupts, the software should
read the CAN_IFR register for every interrupt and prioritize the interrupt service, or else, these multiple
interrupts will not be recognized by the CPU and PIE hardware logic. Each interrupt routine should service all
the interrupt bits that are set and clear them after service.
42
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DSP CONTROLLERS
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CAN memory map
Table 8 and Table 9 show the register and mailbox locations in the CAN module.
†
Table 8. Register Addresses
ADDRESS
OFFSET
NAME
DESCRIPTION
00h
MDER
TCR
Mailbox Direction/Enable Register (bits 7 to 0)
Transmission Control Register (bits 15 to 0)
Receive Control Register (bits 15 to 0)
Master Control Register (bits 13 to 6, 1, 0)
Bit Configuration Register 2 (bits 7 to 0)
Bit Configuration Register 1 (bits 10 to 0)
Error Status Register (bits 8 to 0)
01h
02h
RCR
03h
MCR
04h
BCR2
05h
BCR1
06h
ESR
07h
GSR
Global Status Register (bits 5 to 0)
08h
CEC
Transmit and Receive Error Counters (bits 15 to 0)
09h
CAN_IFR
CAN_IMR
LAM0_H
LAM0_L
LAM1_H
LAM1_L
Reserved
Interrupt Flag Register (bits 13 to 8, 6 to 0)
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
Interrupt Mask Register (bits 15, 13 to 0)
Local Acceptance Mask Mailbox 0 and 1 (bits 31, 28 to 16)
Local Acceptance Mask Mailbox 0 and 1 (bits 15 to 0)
Local Acceptance Mask Mailbox 2 and 3 (bits 31, 28 to 16)
Local Acceptance Mask Mailbox 2 and 3 (bits 15 to 0)
Accesses assert the CAADDRx signal from the CAN peripheral (which asserts an Illegal Address error)
†
Allunimplementedregisterbitsarereadaszero, writeshavenoeffect. Registerbitsareinitializedtozero, unlessotherwisestatedinthedefinition.
‡
Table 9. Mailbox Addresses
ADDRESS
OFFSET [5:0]
DESCRIPTION
UPPER HALF-WORD ADDRESS BIT 0 = 1
DESCRIPTION
LOWER HALF-WORD ADDRESS BIT 0 = 0
NAME
00h
02h
MSGID0
Message ID for mailbox 0
Unused
Message ID for mailbox 0
MSGCTRL0
RTR and DLC (bits 4 to 0)
Databyte 0, Databyte 1 (DBO = 1)
Databyte 3, Databyte 2 (DBO = 0)
Databyte 4, Databyte 5 (DBO = 1)
Databyte 7, Databyte 6 (DBO = 0)
Message ID for mailbox 1
Unused
Databyte 2, Databyte 3 (DBO = 1)
Databyte 1, Databyte 0 (DBO = 0)
Databyte 6, Databyte 7 (DBO = 1)
Databyte 5, Databyte 4 (DBO = 0)
Message ID for mailbox 1
04h
06h
Datalow0
Datahigh0
08h
0Ah
MSGID1
MSGCTRL1
RTR and DLC (bits 4 to 0)
Databyte 0, Databyte 1 (DBO = 1)
Databyte 3, Databyte 2 (DBO = 0)
Databyte 4, Databyte 5 (DBO = 1)
...
Databyte 2, Databyte 3 (DBO = 1)
Databyte 1, Databyte 0 (DBO = 0)
Databyte 6, Databyte 7 (DBO = 1)
...
0Ch
Datalow1
0Eh
...
Datahigh1
...
28h
2Ah
MSGID5
MSGCTRL5
Message ID for mailbox 5
Unused
Message ID for mailbox 5
RTR and DLC (bits 4 to 0)
Databyte 0, Databyte 1 (DBO = 1)
Databyte 3, Databyte 2 (DBO = 0)
Databyte 4, Databyte 5 (DBO = 1)
Databyte 7, Databyte 6 (DBO = 0)
Databyte 2, Databyte 3 (DBO = 1)
Databyte 3, Databyte 2 (DBO = 0)
Databyte 6, Databyte 7 (DBO = 1)
Databyte 5, Databyte 4 (DBO = 0)
2Ch
2Eh
Datalow5
Datahigh5
‡
The DBO (data byte order) bit is located in the MCR register and is used to define the order in which the data bytes are stored in the mailbox
when received and the order in which the data bytes are transmitted. Byte 0 is the first byte in the message and Byte 7 is the last one shown
in the CAN message.
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DSP CONTROLLERS
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serial communications interface (SCI) module
The ’240x devices include a serial communications interface (SCI) module. The SCI module supports digital
communications between the CPU and other asynchronous peripherals that use the standard
non-return-to-zero (NRZ) format. The SCI receiver and transmitter are double-buffered, and each has its own
separate enable and interrupt bits. Both can be operated independently or simultaneously in the full-duplex
mode. To ensure data integrity, the SCI checks received data for break detection, parity, overrun, and framing
errors. The bit rate is programmable to over 65000 different speeds through a 16-bit baud-select register.
Features of the SCI module include:
D
Two external pins:
–
–
SCITXD: SCI transmit-output pin
SCIRXD: SCI receive-input pin
NOTE: Both pins can be used as GPIO if not used for SCI.
D
D
Baud rate programmable to 64K different rates
Up to 1875 Kbps at 30-MHz CPUCLK
Data-word format
–
–
–
–
–
One start bit
Data-word length programmable from one to eight bits
Optional even/odd/no parity bit
One or two stop bits
D
D
D
D
D
Four error-detection flags: parity, overrun, framing, and break detection
Two wake-up multiprocessor modes: idle-line and address bit
Half- or full-duplex operation
Double-buffered receive and transmit functions
Transmitter and receiver operations can be accomplished through interrupt-driven or polled algorithms with
status flags.
–
Transmitter: TXRDY flag (transmitter-buffer register is ready to receive another character) and
TX EMPTY flag (transmitter-shift register is empty)
–
Receiver: RXRDY flag (receiver-buffer register is ready to receive another character), BRKDT flag
(break condition occurred), and RX ERROR flag (monitoring four interrupt conditions)
D
D
D
Separate enable bits for transmitter and receiver interrupts (except BRKDT)
NRZ (non-return-to-zero) format
Ten SCI module control registers located in the control register frame beginning at address 7050h
NOTE: All registers in this module are 8-bit registers that are connected to the 16-bit peripheral bus. When a register is accessed, the
register data is in the lower byte (7–0), and the upper byte (15–8) is read as zeros. Writing to the upper byte has no effect.
Figure 12 shows the SCI module block diagram.
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
serial communications interface (SCI) module (continued)
SCI TX Interrupt
SCITXBUF.7–0
TXWAKE
SCICTL1.3
1
TXRDY
TX INT ENA
TXINT
Transmitter-Data
Buffer Register
Frame Format and Mode
External
SCICTL2.7
Connections
SCICTL2.0
Parity
TX EMPTY
SCICTL2.6
8
Even/Odd Enable
SCICCR.6 SCICCR.5
WUT
TXENA
TXSHF
Register
SCITXD
SCITXD
SCICTL1.1
SCIHBAUD. 15–8
SCI Priority Level
1
Baud Rate
MSbyte
Register
Level 5 Int.
0
Level 1 Int.
Internal
Clock
SCI TX
Priority
SCILBAUD. 7–0
SCIPRI.6
Baud Rate
LSbyte
Register
1
Level 5 Int.
0
Level 1 Int.
SCI RX
Priority
SCIPRI.5
SCIRXD
RXSHF
Register
SCIRXD
RXWAKE
SCIRXST.1
RXENA
RX ERR INT ENA
SCICTL1.0
SCICTL1.6
SCI RX Interrupt
8
RXRDY
RX/BK INT ENA
Receiver-Data
Buffer
SCIRXST.6
RX Error
Register
SCICTL2.1
BRKDT
SCIRXST.5
SCIRXBUF.7–0
SCIRXST.7
RX Error
SCIRXST.4–2
FE OE PE
Figure 12. Serial Communications Interface (SCI) Module Block Diagram
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DSP CONTROLLERS
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serial peripheral interface (SPI) module
Some ’240x devices include the four-pin serial peripheral interface (SPI) module. The SPI is a high-speed,
synchronousserialI/Oportthatallowsaserialbitstreamofprogrammedlength(onetosixteenbits)tobeshifted
into and out of the device at a programmable bit-transfer rate. Normally, the SPI is used for communications
between the DSP controller and external peripherals or another processor. Typical applications include external
I/O or peripheral expansion through devices such as shift registers, display drivers, and ADCs. Multidevice
communications are supported by the master/slave operation of the SPI.
The SPI module features include:
D
Four external pins:
–
–
–
–
SPISOMI: SPI slave-output/master-input pin
SPISIMO: SPI slave-input/master-output pin
SPISTE: SPI slave transmit-enable pin
SPICLK: SPI serial-clock pin
NOTE: All four pins can be used as GPIO, if the SPI module is not used.
D
D
D
D
Two operational modes: master and slave
Baud rate: 125 different programmable rates/7.5 Mbps at 30-MHz CPUCLK
Data word length: one to sixteen data bits
Four clocking schemes (controlled by clock polarity and clock phase bits) include:
–
–
–
–
Falling edge without phase delay: SPICLK active high. SPI transmits data on the falling edge of the
SPICLK signal and receives data on the rising edge of the SPICLK signal.
Falling edge with phase delay: SPICLK active high. SPI transmits data one half-cycle ahead of the
falling edge of the SPICLK signal and receives data on the falling edge of the SPICLK signal.
Rising edge without phase delay: SPICLK inactive low. SPI transmits data on the rising edge of the
SPICLK signal and receives data on the falling edge of the SPICLK signal.
Rising edge with phase delay: SPICLK inactive low. SPI transmits data one half-cycle ahead of the
falling edge of the SPICLK signal and receives data on the rising edge of the SPICLK signal.
D
D
D
Simultaneous receive and transmit operation (transmit function can be disabled in software)
Transmitter and receiver operations are accomplished through either interrupt-driven or polled algorithms.
Nine SPI module control registers: Located in control register frame beginning at address 7040h.
NOTE: All registers in this module are 16-bit registers that are connected to the 16-bit peripheral bus. When a register is accessed, the
register data is in the lower byte (7–0), and the upper byte (15–8) is read as zeros. Writing to the upper byte has no effect.
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DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
serial peripheral interface (SPI) module (continued)
Figure 13 is a block diagram of the SPI in slave mode.
SPIRXBUF.15–0
Overrun
INT ENA
Receiver
Overrun Flag
SPIRXBUF
SPI Priority
SPIPRI.6
Buffer Register
SPISTS.7
0
1
Level 1
INT
Level 5
INT
To CPU
SPICTL.4
SPITXBUF.15–0
16
SPITXBUF
SPI INT
ENA
Buffer Register
External
Connections
SPI INT FLAG
SPISTS.6
16
SPICTL.0
SW1
M
M
SPIDAT
S
M
S
Data Register
S
SPISIMO
SPISOMI
M
SPIDAT.15–0
SW2
S
Talk
SPICTL.1
†
SPISTE
State Control
Master/Slave
SPICTL.2
SPICCR.3–0
SPI Char
S
3
2
1
0
SW3
Clock
Polarity
Clock
Phase
M
S
SPI Bit Rate
SPIBRR.6–0
Internal
Clock
SPICCR.6
SPICTL.3
SPICLK
M
6
5
4
3
2
1
0
NOTE A: The diagram is shown in the slave mode.
†
The SPISTE pin is shown as being disabled, meaning that data cannot be transmitted in this mode. Note that SW1, SW2, and SW3 are closed
in this configuration.
Figure 13. Four-Pin Serial Peripheral Interface Module Block Diagram
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DSP CONTROLLERS
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PLL-based clock module
The ’240x has an on-chip, PLL-based clock module. This module provides all the necessary clocking signals
for the device, as well as control for low-power mode entry. The PLL has a 3-bit ratio control to select different
CPU clock rates. See Figure 14 for the PLL Clock Module Block Diagram, Table 11 for the loop filter component
values, and Table 10 for clock rates.
The PLL-based clock module provides two modes of operation:
D
D
Crystal-operation
This mode allows the use of an external crystal/resonator to provide the time base to the device.
External clock source operation
This mode allows the internal oscillator to be bypassed. The device clocks are generated from an external
clock source input on the XTAL1/CLKIN pin. In this case, an external oscillator clock is connected to the
XTAL1/CLKIN pin.
XTAL1/CLKIN
C
C
b1
b2
RESONATOR/
CRYSTAL
XTAL2
PLLF
F
in
PLL
CLKOUT
R
1
XTAL
OSC
C
2
C
1
3-bit
PLLF2
PLL Select
(SCSR1.[11:9])
Figure 14. PLL Clock Module Block Diagram
Table 10. PLL Clock Selection Through BIts (11–9) in SCSR1 Register
CLK PS2
CLK PS1
CLK PS0
CLKOUT
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
4 × F
2 × F
in
in
1.33 × F
in
1 × F
in
0.8 × F
in
0.66 × F
0.57 × F
in
in
0.5 × F
in
Default multiplication factor after reset is (1,1,1), i.e., 0.5 × F .
in
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external reference crystal clock option
The internal oscillator is enabled by connecting a crystal across XTAL1/CLKIN and XTAL2 pins as shown in
Figure 15a. The crystal should be in fundamental operation and parallel resonant, with an effective series
resistance of 30 Ω–150 Ω and a power dissipation of 1 mW; it should be specified at a load capacitance of 20 pF.
external reference oscillator clock option
TheinternaloscillatorisdisabledbyconnectingaTTL-levelclocksignaltoXTAL1/CLKINandleavingtheXTAL2
input pin unconnected as shown in Figure 15b.
XTAL1/CLKIN
b1
XTAL2
XTAL1/CLKIN
XTAL2
External Clock Signal
(Toggling 0–3.3 V)
C
C
b2
(see Note A)
(see Note A)
Crystal
(a)
NC
(b)
NOTE A: TI recommends that customers have the resonator/crystal vendor characterize the operation of their device with the DSP chip. The
resonator/crystal vendor has the equipment and expertise to tune the tank circuit. The vendor can also advise the customer regarding
the proper tank component values that will ensure start-up and stability over the entire operating range.
Figure 15. Recommended Crystal/Clock Connection
loop filter
The PLL module uses an external loop filter circuit for jitter minimization. The components for the loop filter
circuitareR1, C1, andC2. Thecapacitors(C1andC2)mustbenon-polarized. Thisloopfiltercircuitisconnected
between the PLLF and PLLF2 pins (see Figure 14). For examples of component values of R1, C1, and C2 at
a specified oscillator frequency (XTAL1), see Table 11.
Table 11. Loop Filter Component Values With Damping Factor = 2.0
XTAL1/CLKIN FREQUENCY
R1 (Ω)
C1 (µF)
C2 (µF)
(MHz)
4
4.7
5.6
6.8
8.2
9.1
10
11
3.9
2.7
0.082
0.056
0.039
0.033
0.022
0.015
0.015
0.012
0.01
5
6
1.8
7
1.5
8
1
9
0.82
0.68
0.56
0.47
0.39
0.33
0.33
0.27
0.22
0.22
0.18
0.15
10
11
12
13
14
15
16
17
18
19
20
12
13
15
15
16
18
18
20
22
24
0.0082
0.0068
0.0068
0.0056
0.0047
0.0047
0.0039
0.0033
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low-power modes
The ’240x has an IDLE instruction. When executed, the IDLE instruction stops the clocks to all circuits in the
CPU, but the clock output from the CPU continues to run. With this instruction, the CPU clocks can be shut down
to save power while the peripherals (clocked with CLKOUT) continue to run. The CPU exits the IDLE state if
it is reset, or, if it receives an interrupt request.
clock domains
All ’240x-based devices have two clock domains:
1. CPU clock domain – consists of the clock for most of the CPU logic
2. System clock domain – consists of the peripheral clock (which is derived from CLKOUT of the CPU) and
the clock for the interrupt logic in the CPU.
WhentheCPUgoesintoIDLEmode, theCPUclockdomainisstoppedwhilethesystemclockdomaincontinues
to run. This mode is also known as IDLE1 mode. The ’240x CPU also contains support for a second IDLE mode,
IDLE2. By asserting IDLE2 to the ’240x CPU, both the CPU clock domain and the system clock domain are
stopped, allowing further power savings. A third low-power mode, HALT mode, the deepest, is possible if the
oscillator and WDCLK are also shut down when in IDLE2 mode.
Two control bits, LPM1 and LPM0, specify which of the three possible low-power modes is entered when the
IDLE instruction is executed (see Table 12). These bits are located in the System Control and Status
Register 1 (SCSR1), and they are described in the TMS320F243/’F241/’C242 DSP Controllers System and
Peripherals User’s Guide (literature number SPRU276).
Table 12. Low-Power Modes Summary
LPMx BITS
SCSR1
[13:12]
CPU
CLOCK
DOMAIN
SYSTEM
CLOCK
DOMAIN
WDCLK
STATUS
PLL
STATUS
OSC
STATUS
FLASH
POWER
EXIT
CONDITION
LOW-POWER MODE
CPU running normally
XX
On
Off
On
On
On
On
On
On
On
On
—
Peripheral
Interrupt,
External Interrupt,
Reset,
IDLE1 – (LPM0)
IDLE2 – (LPM1)
00
On
On
PDPINTA/B
Wakeup
Interrupts,
External Interrupt,
Reset,
01
1X
Off
Off
Off
Off
On
Off
On
Off
On
Off
On
Off
PDPINTA/B
HALT – (LPM2)
[PLL/OSC power down]
Reset,
PDPINTA/B
other power-down options
’240x devices have clock enable bits to the following on-chip peripherals: ADC, SCI, SPI, CAN, EVB, and EVA.
Clock to these peripherals are disabled after reset; thus, start-up power can be low for the device.
Depending on the application, these peripherals can be turned on/off to achieve low power.
Refer to the SCSR2 register for details on the peripheral clock enable bits.
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digital I/O and shared pin functions
The ’240x has up to 41 general-purpose, bidirectional, digital I/O (GPIO) pins—most of which are shared
between primary functions and I/O. Most I/O pins of the ’240x are shared with other functions. The digital I/O
ports module provides a flexible method for controlling both dedicated I/O and shared pin functions. All I/O and
shared pin functions are controlled using eight 16-bit registers. These registers are divided into two types:
D
D
Output Control Registers — used to control the multiplexer selection that chooses between the primary
function of a pin or the general-purpose I/O function.
Data and Control Registers — used to control the data and data direction of bidirectional I/O pins.
description of shared I/O pins
The control structure for shared I/O pins is shown in Figure 16, where each pin has three bits that define its
operation:
D
D
Mux control bit — this bit selects between the primary function (1) and I/O function (0) of the pin.
I/O direction bit — if the I/O function is selected for the pin (mux control bit is set to 0), this bit determines
whether the pin is an input (0) or an output (1).
D
I/O data bit — if the I/O function is selected for the pin (mux control bit is set to 0) and the direction selected
is an input, data is read from this bit; if the direction selected is an output, data is written to this bit.
The mux control bit, I/O direction bit, and I/O data bit are in the I/O control registers.
IOP Data Bit
(Read/Write)
Primary
Function
In
Out
IOP DIR Bit
0 = Input
1 = Output
MUX Control Bit
0 = I/O Function
0
1
1 = Primary Function
Primary
Function
or I/O Pin
Pin
Figure 16. Shared Pin Configuration
A summary of shared pin configurations and associated bits is shown in Table 13.
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DSP CONTROLLERS
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description of shared I/O pins (continued)
†
Table 13. Shared Pin Configurations
‡
MUX
PIN FUNCTION SELECTED
I/O PORT DATA AND DIRECTION
MUX
CONTROL
VALUE AT
RESET
CONTROL
REGISTER
(name.bit #)
(MCRx.n = 1)
(MCRx.n = 0)
Primary
DATA
BIT NO.
DIR BIT
REGISTER
§
¶
I/O
NO.
Function
(MCRx.n)
PORT A
SCITXD
SCIRXD
XINT1
IOPA0
IOPA1
IOPA2
IOPA3
IOPA4
IOPA5
IOPA6
IOPA7
MCRA.0
MCRA.1
MCRA.2
MCRA.3
MCRA.4
MCRA.5
MCRA.6
MCRA.7
0
0
0
0
0
0
0
0
PADATDIR
PADATDIR
PADATDIR
PADATDIR
PADATDIR
PADATDIR
PADATDIR
PADATDIR
PORT B
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CAP1/QEP1
CAP2/QEP2
CAP3
PWM1
PWM2
PWM3
PWM4
IOPB0
IOPB1
IOPB2
IOPB3
IOPB4
IOPB5
IOPB6
IOPB7
MCRA.8
MCRA.9
0
0
0
0
0
0
0
0
PBDATDIR
PBDATDIR
PBDATDIR
PBDATDIR
PBDATDIR
PBDATDIR
PBDATDIR
PBDATDIR
PORT C
0
1
2
3
4
5
6
7
8
9
PWM5
MCRA.10
MCRA.11
MCRA.12
MCRA.13
MCRA.14
MCRA.15
10
11
12
13
14
15
PWM6
T1PWM/T1CMP
T2PWM/T2CMP
TDIRA
TCLKINA
#
W/R
IOPC0
IOPC1
IOPC2
IOPC3
IOPC4
IOPC5
IOPC6
IOPC7
MCRB.0
MCRB.1
MCRB.2
MCRB.3
MCRB.4
MCRB.5
MCRB.6
MCRB.7
1
1
0
0
0
0
0
0
PCDATDIR
PCDATDIR
PCDATDIR
PCDATDIR
PCDATDIR
PCDATDIR
PCDATDIR
PCDATDIR
PORT D
0
1
2
3
4
5
6
7
8
BIO
9
SPISIMO
SPISOMI
SPICLK
SPISTE
CANTX
CANRX
10
11
12
13
14
15
XINT2/ADCSOC
EMU0
EMU1
TCK
IOPD0
MCRB.8
MCRB.9
0
1
1
1
1
1
1
1
PDDATDIR
PDDATDIR
PDDATDIR
PDDATDIR
PDDATDIR
PDDATDIR
PDDATDIR
PDDATDIR
0
1
2
3
4
5
6
7
8
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
9
MCRB.10
MCRB.11
MCRB.12
MCRB.13
MCRB.14
MCRB.15
10
11
12
13
14
15
TDI
TDO
TMS
TMS2
†
‡
§
¶
#
Bold, italicized pin names indicate pin functions at reset.
Valid only if the I/O function is selected on the pin
If the GPIO pin is configured as an output, these bits can be written to. If the pin is configured as an input, these bits are read from.
If the DIR bit is 0, the GPIO pin functions as an input. For a value of 1, the pin is configured as an output.
At reset, ’LF2406 and ’LF2402 come up in W/R mode. Application software should select this pin to be IOPC0.
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description of shared I/O pins (continued)
†
Table 13. Shared Pin Configurations (Continued)
‡
I/O PORT DATA AND DIRECTION
MUX
PIN FUNCTION SELECTED
MUX
CONTROL
VALUE AT
RESET
CONTROL
REGISTER
(name.bit #)
(MCRx.n = 1)
(MCRx.n = 0)
Primary
DATA
DIR BIT
REGISTER
§
¶
I/O
BIT NO.
NO.
Function
(MCRx.n)
PORT E
CLKOUT
PWM7
IOPE0
IOPE1
IOPE2
IOPE3
IOPE4
IOPE5
IOPE6
IOPE7
MCRC.0
MCRC.1
MCRC.2
MCRC.3
MCRC.4
MCRC.5
MCRC.6
MCRC.7
1
0
0
0
0
0
0
0
PEDATDIR
PEDATDIR
PEDATDIR
PEDATDIR
PEDATDIR
PEDATDIR
PEDATDIR
PEDATDIR
PORT F
0
1
2
3
4
5
6
7
8
9
PWM8
10
11
12
13
14
15
PWM9
PWM10
PWM11
PWM12
CAP4/QEP3
CAP5/QEP4
CAP6
IOPF0
IOPF1
IOPF2
IOPF3
IOPF4
IOPF5
IOPF6
MCRC.8
MCRC.9
0
0
0
0
0
0
0
PFDATDIR
PFDATDIR
PFDATDIR
PFDATDIR
PFDATDIR
PFDATDIR
PFDATDIR
0
1
2
3
4
5
6
8
9
T3PWM/T3CMP
T4PWM/T4CMP
TDIRB
MCRC.10
MCRC.11
MCRC.12
MCRC.13
MCRC.14
10
11
12
13
14
TCLKINB
IOPF6
†
‡
§
¶
Bold, italicized pin names indicate pin functions at reset.
Valid only if the I/O function is selected on the pin
If the GPIO pin is configured as an output, these bits can be written to. If the pin is configured as an input, these bits are read from.
If the DIR bit is 0, the GPIO pin functions as an input. For a value of 1, the pin is configured as an output.
digital I/O control registers
Table 14 lists the registers available in the digital I/O module. As with other ’240x peripherals, these registers
are memory-mapped to the data space.
Table 14. Addresses of Digital I/O Control Registers
ADDRESS
7090h
7092h
7094h
7095h
7096h
7098h
709Ah
709Ch
709Eh
REGISTER
MCRA
NAME
I/O mux control register A
MCRB
I/O mux control register B
MCRC
I/O mux control register C
PEDATDIR
PFDATDIR
PADATDIR
PBDATDIR
PCDATDIR
PDDATDIR
I/O port E data and direction register
I/O port F data and direction register
I/O port A data and direction register
I/O port B data and direction register
I/O port C data and direction register
I/O port D data and direction register
53
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface (’LF2407)
The TMS320LF2407 can address up to 64K × 16 words of memory (or registers) in each of the program, data,
and I/O spaces. On-chip memory, when enabled, occupies some of this off-chip range.
The CPU of the TMS320LF2407 schedules a program fetch, data read, and data write on the same machine
cycle. This is because from on-chip memory, the CPU can execute all three of these operations in the same
cycle. However, the external interface multiplexes the internal buses to one address bus and one data bus. The
external interface sequences these operations to complete first the data write, then the data read, and finally
the program read.
The ’LF2407 supports a wide range of system interfacing requirements. Program, data, and I/O address spaces
provide interface to memory and I/O, thereby maximizing system throughput. The full 16-bit address and data
buses, along with the PS, DS, and IS space-select signals, allow addressing of 64K 16-bit words in program,
data, and I/O space. Since on-chip peripheral registers occupy positions of data-memory space (7000–7FFF),
the externally addressable data-memory space is 32K 16-bit words (8000–FFFF). Note that the global memory
space of the ’C2xx core is not used for ’240x DSP devices. Therefore, the global memory allocation register
(GREG) is reserved for all these devices.
Input/output (I/O) design is simplified by having I/O space treated the same way as memory. I/O devices are
accessed in the I/O address space using the processor’s external address and data buses in the same manner
as memory-mapped devices.
The’LF2407externalparallelinterfaceprovidesvariouscontrolsignalstofacilitateinterfacingtothedevice. The
R/W output signal is provided to indicate whether the current cycle is a read or a write. The STRB output signal
provides a timing reference for all external cycles. For convenience, the device also provides the RD and the
WE output signals, which indicate a read cycle and a write cycle, respectively, along with timing information for
those cycles. The availability of these signals minimizes external gating necessary for interfacing external
devices to the ’LF2407.
The ’2407 provides RD and W/R signals to help the zero-wait-state external memory interface. At higher
CLKOUT speeds, RD may not meet the slow memory device’s timing. In such instances, the W/R signal could
be used as an alternative signal with some tradeoffs. See the timings for details.
The TMS320LF2407 supports zero-wait-state reads on the external interface. However, to avoid bus conflicts,
writestaketwocycles. ThisallowstheTMS320LF2407tobufferthetransitionofthedatabusfrominputtooutput
(or from output to input) by a half cycle. In most systems, the TMS320LF2407 ratio of reads to writes is
significantly large to minimize the overhead of the extra cycle on writes.
wait-state generation (’LF2407 only)
Wait-state generation is incorporated in the ’LF2407 without any external hardware for interfacing the ’LF2407
with slower off-chip memory and I/O devices. Adding wait states lengthens the time the CPU waits for external
memory or an external I/O port to respond when the CPU reads from or writes to that external memory or I/O
port. Specifically, the CPU waits one extra cycle (one CLKOUT cycle) for every wait state. The wait states
operate on CLKOUT cycle boundaries.
To avoid bus conflicts, writes from the ’LF2407 always take at least two CLKOUT cycles. The ’LF2407 offers
two options for generating wait states:
D
D
READYSignal. WiththeREADYsignal, youcanexternallygenerateanynumberofwaitstates. TheREADY
pin has no effect on accesses to internal memory.
On-Chip Wait-State Generator. With this generator, you can generate zero to seven wait states.
54
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
generating wait states with the READY signal
When the READY signal is low, the ’LF2407 waits one CLKOUT cycle and then checks READY again. The
’LF2407 does not continue executing until the READY signal is driven high; therefore, if the READY signal is
not used, it should be pulled high.
The READY pin can be used to generate any number of wait states. However, when the ’LF2407 operates at
full speed, it may not respond fast enough to provide a READY-based wait state for the first cycle. For extended
wait states using external READY logic, the on-chip wait-state generator should be programmed to generate
at least one wait state.
generating wait states with the ’LF2407 on-chip software wait-state generator
The software wait-state generator can be programmed to generate zero to seven wait states for a given off-chip
memory space (program, data, or I/O), regardless of the state of the READY signal. These zero to seven wait
states are controlled by the wait-state generator register (WSGR) (I/O FFFFh). For more detailed information
on the WSGR and associated bit functions, refer to the TMS320F243/’F241/’C242 DSP Controllers System and
Peripherals User’s Guide (literature number SPRU276).
watchdog (WD) timer module
The ’x240x devices include a watchdog (WD) timer module. The WD function of this module monitors software
and hardware operation by generating a system reset if it is not periodically serviced by software by having the
correct key written. The WD timer operates independently of the CPU. It does not need any CPU initialization
to function. When a system reset occurs, the WD timer defaults to the fastest WD timer rate available (WDCLK
signal=CLKOUT/512). Assoonasresetisreleasedinternally, theCPUstartsexecutingcode, andtheWDtimer
begins incrementing. This means that, to avoid a premature reset, WD setup should occur early in the power-up
sequence. See Figure 17 for a block diagram of the WD module. The WD module features include the following:
D
WD Timer
–
–
Seven different WD overflow rates
A WD-reset key (WDKEY) register that clears the WD counter when a correct value is written, and
generates a system reset if an incorrect value is written to the register
–
WD check bits that initiate a system reset if an incorrect value is written to the WD control register
(WDCR)
D
Automatic activation of the WD timer, once system reset is released
Three WD control registers located in control register frame beginning at address 7020h.
–
NOTE: All registers in this module are 8-bit registers. When a register is accessed, the register data is in the lower byte, the upper byte
is read as zeros. Writing to the upper byte has no effect.
Figure 17 shows the WD block diagram. Table 15 shows the different WD overflow (timeout) selections.
The watchdog can be disabled in software by writing ’1’ to bit 6 of the WDCR register (WDCR.6) while bit 5 of
the SCSR2 register (SCSR2.5) is 1. If SCSR2.5 is 0, the watchdog will not be disabled. SCSR2.5 is equivalent
to the WDDIS pin of the TMS320F243/241 devices.
55
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
watchdog (WD) timer module (continued)
CLKOUT
CLKIN
3-bit
Prescaler
÷ 512
PLL
6-Bit
Free-
Running
Counter
/64
On-Chip
/32
Oscillator or
External
Clock
/16
/8
WDCLK
/4
/2
System
Reset
CLR
000
001
010
011
100
101
WDPS
WDCR.2–0
2
1 0
110
111
WDCR.6
WDDIS
WDCNTR.7–0
WDFLAG
8-Bit Watchdog
Counter
WDCR.7
Reset Flag
One-Cycle
Delay
PS/257
CLR
WDKEY.7–0
System
Reset
Request
Bad Key
Watchdog
Reset Key
Register
55 + AA
Detector
Good Key
WDCHK2–0
†
WDCR.5–3
Bad WDCR Key
3
3
System Reset
1
0 1
(Constant
Value)
†
Writing to bits WDCR.5–3 with anything but the correct pattern (101) generates a system reset.
Figure 17. Block Diagram of the WD Module
56
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
watchdog (WD) timer module (continued)
Table 15. WD Overflow (Timeout) Selections
WATCHDOG
CLOCK RATE
WD PRESCALE SELECT BITS
†
WDCLK DIVIDER
WDPS2
WDPS1
WDPS0
FREQUENCY (Hz)
WDCLK/1
‡
X
0
0
0
1
1
1
1
0
1
1
0
0
1
1
1
2
0
WDCLK/2
1
0
1
0
1
4
WDCLK/4
8
WDCLK/8
16
32
64
WDCLK/16
WDCLK/32
WDCLK/64
†
‡
WDCLK = CLKOUT/512
X = Don’t care
57
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
development support
TexasInstruments(TI)offersanextensivelineofdevelopmenttoolsforthe’x240xgenerationofDSPs, including
tools to evaluate the performance of the processors, generate code, develop algorithm implementations, and
fully integrate and debug software and hardware modules.
The following products support development of ’x240x-based applications:
Software Development Tools:
Assembler/linker
Simulator
Optimizing ANSI C compiler
Application algorithms
C/Assembly debugger and code profiler
Hardware Development Tools:
Emulator XDS510 (supports ’x24x multiprocessor system debug)
The TMS320 DSP Development Support Reference Guide (literature number SPRU011) contains information
about development support products for all TMS320 family member devices, including documentation. Refer
to this document for further information about TMS320 documentation or any other TMS320 support products
from Texas Instruments. There is also an additional document, the TMS320 Third-Party Support Reference
Guide (literature number SPRU052), which contains information about TMS320-related products from other
companies in the industry. To receive copies of TMS320 literature, contact the Literature Response Center at
800/477-8924.
See Table 16 and Table 17 for complete listings of development support tools for the ’x240x. For information
on pricing and availability, contact the nearest TI field sales office or authorized distributor.
Table 16. Development Support Tools
DEVELOPMENT TOOL
PLATFORM
Software
PART NUMBER
Compiler/Assembler/Linker
SPARC
TMDS3242555-08
TMDS3242855-02
TMDS3242850-02
TMDX324x851-02
TMDX324x551-09
DFDP
Compiler/Assembler/Linker
Assembler/Linker
PC-DOS
PC-DOS, OS/2
PC-DOS, WIN
SPARC
’C2xx Simulator
’C2xx Simulator
Digital Filter Design Package
’C2xx Debugger/Emulation Software
’C2xx Debugger/Emulation Software
PC-DOS
PC-DOS, OS/2, WIN
SPARC
TMDX324012xx
TMDX324062xx
Hardware
XDS510XL Emulator
XDS510WS Emulator
PC-DOS, OS/2
SPARC
TMDS00510
TMDS00510WS
SPARC is a trademark of SPARC International, Inc.
PC-DOS and OS/2 are trademarks of International Business Machines Corp.
WIN is a trademark of Microsoft Corp.
XDS510XL and XDS510WS are trademarks of Texas Instruments Incorporated.
58
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
development support (continued)
Table 17. TMS320x24x-Specific Development Tools
DEVELOPMENT TOOL
PLATFORM
Hardware
PC
PART NUMBER
TMS320F240 EVM
TMS320F243 EVM
TMDX326P124x
TMDS3P604030
PC
The ’F240 and ’F243 Evaluation Modules (EVM) provide designers of motor and motion control applications
with a complete and cost-effective way to take their designs from concept to production. These tools offer both
a hardware and software development environment and include:
D
D
D
D
D
D
D
D
D
D
D
Flash-based ’24x evaluation board
Code Generation Tools
Assembler/Linker
C Compiler (’F243 EVM)
Source code debugger
’C24x Debugger (’F240 EVM)
Code Composer IDE (’F243 EVM)
XDS510PP JTAG-based emulator
Sample applications code
Universal 5VDC power supply
Documentation and cables
device and development support tool nomenclature
To designate the stages in the product development cycle, Texas Instruments assigns prefixes to the part
numbers of all TMS320 devices and support tools. Each TMS320 member has one of three prefixes: TMX, TMP,
or TMS. Texas Instruments recommends two of three possible prefix designators for its support tools: TMDX
and TMDS. These prefixes represent evolutionary stages of product development from engineering prototypes
(TMX/TMDX) through fully qualified production devices/tools (TMS/TMDS). This development flow is defined
below.
Support tool development evolutionary flow:
TMDX
TMDS
Development support product that has not completed TI’s internal qualification testing
Fully qualified development support product
TMX and TMP devices and TMDX development support tools are shipped against the following disclaimer:
“Developmental product is intended for internal evaluation purposes.”
TMS devices and TMDS development support tools have been fully characterized, and the quality and reliability
of the device have been fully demonstrated. TI’s standard warranty applies.
59
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
device and development support tool nomenclature (continued)
TI device nomenclature also includes a suffix with the device family name. This suffix indicates the package type
(for example, PG, PGE, and PZ) and temperature range (for example, A). Figure 18 provides a legend for
reading the complete device name for any TMS320x2xx family member. Refer to the timing section for specific
options that are available on ’240x devices.
Predictions show that prototype devices (TMX or TMP) have a greater failure rate than the standard production
devices. TexasInstrumentsrecommendsthatthesedevicesnotbeusedinanyproductionsystembecausetheir
expected end-use failure rate still is undefined. Only qualified production devices are to be used.
TMS 320 LF 2407 PGE (A)
PREFIX
TEMPERATURE RANGE (DEFAULT: 0°C TO 70°C)
TMX = experimental device
TMP = prototype device
TMS = qualified device
L
A
S
=
=
=
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
Q = –40°C to 125°C, Q 100 Fault Grading
†
PACKAGE TYPE
PG 64-pin PQFP
=
DEVICE FAMILY
320 = TMS320 Family
PGE= 144-pin plastic TQFP
PZ
=
100-pin plastic TQFP
DEVICE
’20x DSP
TECHNOLOGY
203
206
209
C = CMOS
E
F
=
=
CMOS EPROM
Flash EEPROM
LC = Low-voltage CMOS (3.3 V)
LF = Flash EEPROM (3.3 V)
VC= Low-voltage CMOS (3 V)
’24x DSP
240
241
242
243
’240x DSP
2407
2406
2404
2402
†
PQFP = Plastic Quad Flatpack
TQFP = Thin Quad Flatpack
Figure 18. TMS320 Device Nomenclature
60
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
documentation support
ExtensivedocumentationsupportsalloftheTMS320familygenerationsofdevicesfromproductannouncement
through applications development. The types of documentation available include: data sheets, such as this
document, with design specifications; complete user’s guides for all devices and development support tools;
and hardware and software applications. Useful reference documentation includes:
D
Data sheets
–
–
TMS320C242 DSP Controller (literature number SPRS063)
TMS320F243, TMS320F241 DSP Controllers (literature number SPRS064)
D
User Guides
–
–
–
TMS320C240 DSP Controllers CPU, System, and Instruction Set Reference Guide
(literature number SPRU160)
TMS320C240 DSP Controllers Peripheral Library and Specific Devices
(literature number SPRU161)
’F243/’F241/’C242 DSP Controllers System and Peripherals User’s Guide
(literature number SPRU276)
D
Application Reports
3.3V DSP for Digital Motor Control (literature number SPRA550)
–
A series of DSP textbooks is published by Prentice-Hall and John Wiley & Sons to support digital signal
processing research and education. The TMS320 newsletter, Details on Signal Processing, is published
quarterly and distributed to update TMS320 customers on product information.
UpdatedinformationontheTMS320DSPcontrollerscanbefoundontheworldwidewebat:http://www.ti.com.
To send comments regarding the ’240x data sheet (SPRS094), use the comments@books.sc.ti.com email
address, which is a repository for feedback. For questions and support, contact the Product Information Center
listed at the http://www.ti.com/sc/docs/pic/home.htm site.
61
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V , PLLV
, V
, and V
(see Note 1) . . . . . . . . . . . . . . . . . . – 0.3 V to 4.6 V
DD
CCA DDO
CCA
V
range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 5.5 V
CCP
Input voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 4.6 V
Output voltage range, V ’LF240x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 4.6 V
Output voltage range,V ’LC240x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 4.6 V
Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
I
O
O
IK
OK
I
I
CC
Output clamp current, I
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
O O CC
Operating free-air temperature range, T : A version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°C
A
(TMS320LF2407PGE)
(TMS320LF2406PZ, TMS320LC2404PZ, TMS320LC2406PZ)
(TMS320LF2402PG, TMS320LC2402PG)
S version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 125°C
(TMS320LF2407PGE)
(TMS320LF2406PZ, TMS320LC2404PZ, TMS320LC2406PZ)
(TMS320LF2402PG, TMS320LC2402PG)
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
stg
†
Clamp current stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to V
.
SS
‡
recommended operating conditions
MIN
3.0
0
NOM
3.3
0
MAX
3.6
0
UNIT
V
V
V
Supply voltage (±10% of 3.3 V)
Supply ground
3.3-V operation
DD
V
SS
PLLV
CCA
PLL supply voltage
3.3-V operation
3.3-V operation
3.0
3.0
4.75
3.3
3.3
5.0
3.6
3.6
5.25
30
V
V
CCA
ADC supply voltage
V
V
CCP
Flash programming supply voltage (±5%)
Device clock frequency
V
f
– 40°C to 125°C
MHz
CLKOUT
V
High-level input voltage
All inputs
2.0
V
IH
IL
V
Low-level input voltage
All inputs
0.8
– 2.0
– 4.0
– 8.0
2.0
V
§
§
§
§
§
§
Output pins Group 1
Output pins Group 2
Output pins Group 3
Output pins Group 1
Output pins Group 2
Output pins Group 3
A version
mA
mA
mA
mA
mA
mA
I
I
High-level output source current, V
= 2.4 V
OH
OH
4.0
Low-level output sink current, V
= V
MAX
OL
OL
OL
8.0
– 40
– 40
– 65
– 40
– 40
25
25
85
Operating free-air temperature
(excluding flash programming)
T
A
°C
S version
125
150
85
T
stg
Storage temperature
°C
°C
T
Flash programming temperature
Junction temperature
25
25
FP
j
T
150
°C
Nf
Flash endurance for the array (Write/erase cycles)
At room temperature
10K
cycles
‡
§
Refer to the mechanical data package page for thermal resistance values, Θ (junction-to-ambient) and Θ (junction-to-case).
JA JC
Primary signals and their GPIOs:
Group 1: PWM1–PWM6, CAP1–CAP6, TCLKINA, RS, IOPF6, IOPC1, TCK, TDI, TMS, XF
Group 2: PS/DS/IS, RD, W/R, STRB, R/W, VIS_OE, A0–A15, D0–D15, T1PWM–T4PWM, PWM7–PWM12, CANTX, CANRX, SPICLK,
SPISOMI, SPISIMO, SPISTE, EMU0, EMU1, TDO, TMS2
Group 3: TDIRA, TDIRB, SCIRXD, SCITXD, XINT1, XINT2, CLKOUT
62
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
2.4
2.7
TYP
MAX
UNIT
V
= 3.0V, I = 2 mA, 4 mA, 8 mA
DD
OH
All outputs at 50 µA
= 2 mA, 4 mA, 8 mA
V
V
High-level output voltage
V
OH
Low-level output voltage
Input current (low level)
Input current (high level)
I
0.4
±20
±20
V
OL
OL
V = 0 V
I
I
µA
µA
IL
I
V = V
I
IH
DD
= V
Output current, high-impedance
state (off-state)
I
V
O
or 0 V
±5
µA
OZ
DD
’LF2407
’LF2406
’LF2402
’LF2407
’LF2406
’LF2402
’LF2407
’LF2406
’LF2402
’LF2407
’LF2406
’LF2402
180
150
115
80
70
55
45
45
45
80
80
80
2
3.3-V operation,CPUCLK = 30 MHz,
all peripherals running
Supply current, operating mode
mA
Supply current, Idle 1 low-power
mode
†
†
†
†
LPM0
LPM1
LPM2
3.3-V operation, t
= 30 MHz
= 30 MHz
mA
mA
µA
c(CO)
c(CO)
I
DD
Supply current, Idle 2 low-power
mode
†
3.3-V operation, t
Supply current,
PLL/OSC power-down mode
3.3-V operation, at room
†
temperature
C
C
Input capacitance
Output capacitance
pF
pF
i
3
o
†
Test condition: These current measurements are estimates when the CPU is running a dummy code in B0 RAM.
63
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
I
OL
Tester Pin
Electronics
Output
Under
Test
50 Ω
V
LOAD
C
T
I
OH
Where:
I
I
V
=
=
=
=
2 mA (all outputs)
300 µA (all outputs)
1.5 V
OL
OH
LOAD
T
C
50-pF typical load-circuit capacitance
Figure 19. Test Load Circuit
signal transition levels
The data in this section is shown for the 3.3-V version. Note that some of the signals use different reference
voltages, see the recommended operating conditions table. Output levels are driven to a minimum logic-high
level of 2.4 V and to a maximum logic-low level of 0.8 V.
Figure 20 shows output levels.
2.4 V (V
80%
)
OH
20%
0.4 V (V
)
OL
Figure 20. Output Levels
Output transition times are specified as follows:
D
For a high-to-low transition, the level at which the output is said to be no longer high is below 80% of the
total voltage range and lower and the level at which the output is said to be low is 20% of the total voltage
range and lower.
D
For a low-to-high transition, the level at which the output is said to be no longer low is 20% of the total voltage
range and higher and the level at which the output is said to be high is 80% of the total voltage range and
higher.
Figure 21 shows the input levels.
2.0 V (V
90%
)
IH
10%
0.8 V (V
)
IL
Figure 21. Input Levels
Input transition times are specified as follows:
D
For a high-to-low transition on an input signal, the level at which the input is said to be no longer high is 90%
ofthetotalvoltagerangeandlowerandthelevelatwhichtheinputissaidtobelowis10%ofthetotalvoltage
range and lower.
D
For a low-to-high transition on an input signal, the level at which the input is said to be no longer low is 10%
of the total voltage range and higher and the level at which the input is said to be high is 90% of the total
voltage range and higher.
64
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
timing parameter symbology
Timing parameter symbols used are created in accordance with JEDEC Standard 100-A. To shorten the
symbols, some of the pin names and other related terminology have been abbreviated as follows:
A
A[15:0]
MS
R
Memory strobe pins IS, DS, or PS
READY
Cl
XTAL1/CLKIN
CLKOUT
CO
D
RD
RS
W
Read cycle or RD
RESET pin RS
D[15:0]
INT
NMI, XINT1, XINT2
Write cycle or WE
Lowercase subscripts and their meanings:
Letters and symbols and their meanings:
a
c
d
f
access time
cycle time (period)
delay time
H
L
High
Low
V
X
Z
Valid
fall time
Unknown, changing, or don’t care level
High impedance
h
r
hold time
rise time
su
t
setup time
transition time
valid time
v
w
pulse duration (width)
general notes on timing parameters
All output signals from the ’F243/’F241 devices (including CLKOUT) are derived from an internal clock such that
all output transitions for a given half-cycle occur with a minimum of skewing relative to each other.
The signal combinations shown in the following timing diagrams may not necessarily represent actual cycles.
For actual cycle examples, refer to the appropriate cycle description section of this data sheet.
65
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external reference crystal/clock with PLL circuit enabled
timings with the PLL circuit enabled
PARAMETER
MIN
TYP
MAX
13
UNIT
Resonator
4
†
Crystal
CLKIN
4
4
20
f
x
Input clock frequency
MHz
20
†
Input frequency should be adjusted (CLK PS bits in SCSR1 register) such that CLKOUT = 30 MHz maximum.
switching characteristics over recommended operating conditions [H = 0.5 t
] (see Figure 22)
c(CO)
PARAMETER
Cycle time, CLKOUT
PLL MODE
MIN
TYP
MAX
UNIT
ns
†
t
t
t
t
t
×4 mode
33
c(CO)
Fall time, CLKOUT
4
4
ns
f(CO)
Rise time, CLKOUT
ns
r(CO)
Pulse duration, CLKOUT low
Pulse duration, CLKOUT high
H–3
H –3
H
H
H+3
H+3
ns
w(COL)
w(COH)
ns
t
p
4096t
ns
Transition time, PLL synchronized after RS pin high
c(Cl)
†
Input frequency should be adjusted (CLK PS bits in SCSR1 register) such that CLKOUT = 30 MHz maximum.
timing requirements (see Figure 22)
MIN
MAX
UNIT
ns
t
t
t
t
t
133
Cycle time, XTAL1/CLKIN
c(Cl)
Fall time, XTAL1/CLKIN
5
5
ns
f(Cl)
Rise time, XTAL1/CLKIN
ns
r(Cl)
Pulse duration, XTAL1/CLKIN low as a percentage of t
40
40
60
60
%
w(CIL)
w(CIH)
c(Cl)
Pulse duration, XTAL1/CLKIN high as a percentage of t
c(Cl)
%
t
c(CI)
t
w(CIH)
t
t
r(Cl)
f(Cl)
t
w(CIL)
XTAL1/CLKIN
CLKOUT
t
w(COH)
t
f(CO)
t
t
t
c(CO)
w(COL)
r(CO)
Figure 22. CLKIN-to-CLKOUT Timing with PLL and External Clock in ×4 Mode
66
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
RS timings
switching characteristics over recommended operating conditions for a reset [H = 0.5t
]
c(CO)
(see Figure 23)
PARAMETER
MIN
MAX
UNIT
ns
†
t
t
t
128t
Pulse duration, RS low
w(RSL1)
c(CI)
36H
ns
Delay time, reset vector executed after PLL lock time
PLL lock time (input cycles)
d(EX)
4096 cycles
p
†
The parameter t
refers to the time RS is an output.
w(RSL1)
XTAL1/
CLKIN
t
d(EX)
t
p
t
w(RSL1)
RS
CLKOUT
A0–A15
Figure 23. Watchdog Reset Pulse
timing requirements for a reset [H = 0.5t
] (see Figure 24)
c(CO)
MIN
MAX
UNIT
‡
t
t
t
1
ms
Pulse duration, RS low
w(RSL)
8t
ns
ns
Pulse duration, RS low
w(RSL2)
c(CI)
36H
Delay time, reset vector executed after PLL lock time
d(EX)
‡
The parameter t
refers to the time RS is an input
w(RSL)
XTAL1/
CLKIN
†
V
op
t
d(EX)
t
p
t
w(RSL)
RS
CLKOUT
A0–A15
Case A. Power-on reset
XTAL1/
CLKIN
t
d(EX)
t
p
t
w(RSL2)
RS
CLKOUT
A0–A15
Case B. External reset after power-on
†
V
op
is the V
voltage below which the device is non-operational, typically around 1.1 V.
CC
Figure 24. Reset Timing
67
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
XF, BIO, and MP/MC timings
switching characteristics over recommended operating conditions (see Figure 25)
PARAMETER
Delay time, CLKOUT high to XF high/low
MIN
MAX
UNIT
t
–3
7
ns
d(XF)
timing requirements (see Figure 25)
MIN
0
MAX
UNIT
ns
t
t
Setup time, BIO or MP/MC low before CLKOUT low
Hold time, BIO or MP/MC low after CLKOUT low
su(BIO)CO
19
ns
h(BIO)CO
CLKOUT
t
d(XF)
XF
t
t
h(BIO)CO
su(BIO)CO
BIO,
MP/MC
Figure 25. XF and BIO Timing
68
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
TIMING EVENT MANAGER INTERFACE
PWM timings
PWM refers to PWM outputs on PWM1, PWM2, PWM3, PWM4, PWM5, PWM6, T1PWM, and T2PWM.
switching characteristics over recommended operating conditions for PWM timing
[H = 0.5t
] (see Figure 26)
c(CO)
PARAMETER
MIN
MAX
UNIT
ns
†
t
t
2H+5
Pulse duration, PWM output high/low
w(PWM)
d(PWM)CO
15
ns
Delay time, CLKOUT low to PWM output switching
†
PWM outputs may be 100%, 0%, or increments of t
with respect to the PWM period.
c(CO)
‡
timing requirements [H = 0.5t
] (see Figure 27)
c(CO)
MIN
MAX
UNIT
ns
t
t
t
t
4H+5
40
Pulse duration, TMRDIR low/high
w(TMRDIR)
w(TMRCLK)
wh(TMRCLK)
c(TMRCLK)
60
60
%
Pulse duration, TMRCLK low as a percentage of TMRCLK cycle time
Pulse duration, TMRCLK high as a percentage of TMRCLK cycle time
Cycle time, TMRCLK
40
%
4 ꢀ t
ns
c(CO)
‡
Parameter TMRDIR is equal to the pin TDIR, and parameter TMRCLK is equal to the pin TCLKIN.
CLKOUT
t
d(PWM)CO
t
w(PWM)
PWMx
Figure 26. PWM Output Timing
CLKOUT
t
w(TMRDIR)
TMRDIR
Figure 27. Capture/TMRDIR Timing
69
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
capture and QEP timings
CAP refers to CAP1/QEP0/IOPA3, CAP2/QEP1/IOPA4, and CAP3/IOPA5.
timing requirements [H = 0.5t
] (see Figure 28)
c(CO)
MIN
MAX
UNIT
t
4H +15
ns
Pulse duration, CAP input low/high
w(CAP)
CLKOUT
t
w(CAP)
CAPx
Figure 28. Capture Input and QEP Timing
70
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
interrupt timings
INT refers to NMI, XINT1, and XINT2/IO. PDP refers to PDPINT.
switching characteristics over recommended operating conditions (see Figure 29)
PARAMETER
MIN
MAX
UNIT
t
t
12
ns
Delay time, PDPINT low to PWM to high-impedance state
Delay time, INT low/high to interrupt-vector fetch
hz(PWM)PDP
10t
ns
d(INT)
c(CO)
timing requirements [H = 0.5t
] (see Figure 29)
c(CO)
MIN
MAX
UNIT
ns
t
t
2H+15
4H+5
Pulse duration, INT input low/high
Pulse duration, PDPINT input low
w(INT)
ns
w(PDP)
CLKOUT
t
w(PDP)
PDPINT
PWM
t
hz(PWM)PDP
t
w(INT)
XINT1/XINT2/NMI
ADDRESS
t
d(INT)
Interrupt Vector
Figure 29. Power Drive Protection Interrupt Timing
71
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
general-purpose input/output timings
switching characteristics over recommended operating conditions (see Figure 30)
PARAMETER
MIN
MAX
UNIT
t
t
t
Delay time, CLKOUT low to GPIO low/high
Rise time, GPIO switching low to high
Fall time, GPIO switching high to low
All GPIOs
All GPIOs
All GPIOs
9
8
6
ns
ns
ns
d(GPO)CO
r(GPO)
f(GPO)
timing requirements [H = 0.5t
] (see Figure 31)
c(CO)
MIN
MAX
UNIT
t
2H+15
ns
Pulse duration, GPI high/low
w(GPI)
CLKOUT
t
d(GPO)CO
GPIO
t
r(GPO)
t
f(GPO)
Figure 30. General-Purpose Output Timing
CLKOUT
GPIO
t
w(GPI)
Figure 31. General-Purpose Input Timing
72
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
SPI MASTER MODE TIMING PARAMETERS
SPI master mode timing information is listed in the following tables.
†‡
SPI master mode external timing parameters (clock phase = 0) (see Figure 32)
SPI WHEN (SPIBRR + 1) IS EVEN
SPI WHEN (SPIBRR + 1)
IS ODD AND SPIBRR > 3
OR SPIBRR = 0 OR 2
NO.
UNIT
MIN
MAX
MIN
MAX
1
t
t
Cycle time, SPICLK
4t
128t
5t
c(CO)
127t
ns
c(SPC)M
c(CO)
c(CO)
c(CO)
Pulse duration, SPICLK high
(clock polarity = 0)
0.5t
0.5t
0.5t
0.5t
–10
–10
–10
–10
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
–0.5t
–0.5t
+0.5t
+0.5t
–10
–10
0.5t
0.5t
–0.5t
–0.5t
w(SPCH)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(CO)
c(CO)
c(CO)
c(CO)
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(CO)
c(CO)
c(CO)
§
ns
ns
ns
ns
ns
ns
2
3
4
5
8
9
Pulse duration, SPICLK low
(clock polarity = 1)
t
t
t
t
t
t
t
t
t
t
t
w(SPCL)M
c(SPC)M
c(SPC)M
c(SPC)M
Pulse duration, SPICLK low
(clock polarity = 0)
–10 0.5t
–10 0.5t
+ 0.5t
+ 0.5t
w(SPCL)M
§
§
§
§
§
Pulse duration, SPICLK high
(clock polarity = 1)
w(SPCH)M
c(SPC)M
10
c(CO)
10
Delay time, SPICLK high to
SPISIMO valid (clock polarity = 0)
– 10
– 10
– 10
– 10
d(SPCH-SIMO)M
d(SPCL-SIMO)M
v(SPCL-SIMO)M
v(SPCH-SIMO)M
su(SOMI-SPCL)M
su(SOMI-SPCH)M
v(SPCL-SOMI)M
v(SPCH-SOMI)M
Delay time, SPICLK low to
SPISIMO valid (clock polarity = 1)
10
10
Valid time, SPISIMO data valid after
SPICLK low (clock polarity =0)
0.5t
0.5t
–10
–10
0
0.5t
0.5t
+0.5t
+0.5t
–10
–10
0
c(SPC)M
c(SPC)M
c(CO)
Valid time, SPISIMO data valid after
SPICLK high (clock polarity =1)
c(SPC)M
c(SPC)M
c(CO)
Setup time, SPISOMI before
SPICLK low (clock polarity = 0)
Setup time, SPISOMI before
SPICLK high (clock polarity = 1)
0
0
Valid time, SPISOMI data valid after
SPICLK low (clock polarity = 0)
0.25t
0.25t
–10
–10
0.5t
0.5t
–0.5t
–0.5t
–10
c(SPC)M
c(SPC)M
c(CO)
Valid time, SPISOMI data valid after
SPICLK high (clock polarity = 1)
–10
c(CO)
c(SPC)M
c(SPC)M
†
‡
§
The MASTER/SLAVE bit (SPICTL.2) is set and the CLOCK PHASE bit (SPICTL.3) is cleared.
t = system clock cycle time = 1/CLKOUT = t
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
c
c(CO)
ADVANCE INFORMATION
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
1
SPICLK
(clock polarity = 0)
2
4
3
SPICLK
(clock polarity = 1)
5
SPISIMO
SPISOMI
Master Out Data Is Valid
8
9
Master In Data
Must Be Valid
†
SPISTE
†
The SPISTE signal must be active before the SPI communication stream starts; the SPISTE signal must remain active
until the SPI communication stream is complete.
Figure 32. SPI Master Mode External Timing (Clock Phase = 0)
74
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
†‡
SPI master mode external timing parameters (clock phase = 1) (see Figure 33)
SPI WHEN (SPIBRR + 1) IS EVEN
SPI WHEN (SPIBRR + 1)
IS ODD AND SPIBRR > 3
OR SPIBRR = 0 OR 2
MIN MAX
4t 128t
NO.
UNIT
MIN
MAX
127t
c(CO)
1
t
t
Cycle time, SPICLK
5t
c(CO)
ns
c(SPC)M
c(CO) c(CO)
Pulse duration, SPICLK high
(clock polarity = 0)
0.5t
0.5t
0.5t
0.5t
–10
–10
–10
–10
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
0.5t
–0.5t
–10
–10
–10
–10
0.5t
0.5t
–0.5t
w(SPCH)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(CO)
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(CO)
c(CO)
c(CO)
c(CO)
§
2
ns
ns
Pulse duration, SPICLK low
(clock polarity = 1)
t
t
t
–0.5t
+0.5t
+0.5t
–0.5t
w(SPCL)M
w(SPCL)M
w(SPCH)M
c(CO)
c(CO)
c(CO)
Pulse duration, SPICLK low
(clock polarity = 0)
0.5t
0.5t
+ 0.5t
+ 0.5t
§
3
Pulse duration, SPICLK high
(clock polarity = 1)
Setup time, SPISIMO data
valid before SPICLK high
(clock polarity = 0)
t
t
t
t
t
t
t
t
0.5t
0.5t
0.5t
0.5t
–10
–10
–10
–10
0.5t
–10
–10
–10
–10
su(SIMO-SPCH)M
su(SIMO-SPCL)M
v(SPCH-SIMO)M
v(SPCL-SIMO)M
su(SOMI-SPCH)M
su(SOMI-SPCL)M
v(SPCH-SOMI)M
v(SPCL-SOMI)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
c(SPC)M
§
ns
ns
ns
ns
6
7
Setup time, SPISIMO data
valid before SPICLK low
(clock polarity = 1)
0.5t
Valid time, SPISIMO data
valid after SPICLK high
(clock polarity =0)
0.5t
§
Valid time, SPISIMO data
valid after SPICLK low
(clock polarity =1)
0.5t
c(SPC)M
c(SPC)M
0
Setup time, SPISOMI before
SPICLK high
(clock polarity = 0)
0
§
10
Setup time, SPISOMI before
SPICLK low
(clock polarity = 1)
0
0
Valid time, SPISOMI data
valid after SPICLK high
(clock polarity = 0)
0.25t
0.25t
–10
–10
0.5t
0.5t
–10
–10
c(SPC)M
c(SPC)M
§
11
Valid time, SPISOMI data
valid after SPICLK low
(clock polarity = 1)
c(SPC)M
c(SPC)M
†
‡
§
The MASTER/SLAVE bit (SPICTL.2) is set and the CLOCK PHASE bit (SPICTL.3) is set.
t = system clock cycle time = 1/CLKOUT = t
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
c
c(CO)
ADVANCE INFORMATION
TMS320LF2407,TMS320LF2406,TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
1
SPICLK
(clock polarity = 0)
2
3
SPICLK
(clock polarity = 1)
6
7
SPISIMO
SPISOMI
Master Out Data Is Valid
10
Data Valid
11
Master In Data
Must Be Valid
†
SPISTE
†
TheSPISTEsignalmustbeactivebeforetheSPIcommunicationstreamstarts;theSPISTEsignalmustremainactiveuntil
theSPI communication stream is complete.
Figure 33. SPI Master Mode External Timing (Clock Phase = 1)
76
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
SPI SLAVE MODE TIMING PARAMETERS
Slave mode timing information is listed in the following tables.
†‡
SPI slave mode external timing parameters (clock phase = 0) (see Figure 34)
NO.
MIN
MAX
UNIT
‡
12
t
t
t
t
t
Cycle time, SPICLK
4t
c(CO)
ns
c(SPC)S
Pulse duration, SPICLK high (clock polarity = 0)
Pulse duration, SPICLK low (clock polarity = 1)
Pulse duration, SPICLK low (clock polarity = 0)
Pulse duration, SPICLK high (clock polarity = 1)
0.5t
0.5t
0.5t
0.5t
–10 0.5t
–10 0.5t
–10 0.5t
–10 0.5t
w(SPCH)S
w(SPCL)S
w(SPCL)S
w(SPCH)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
§
13
ns
ns
§
14
Delay time, SPICLK high to SPISOMI valid
(clock polarity = 0)
t
t
t
0.375t
–10
–10
d(SPCH-SOMI)S
d(SPCL-SOMI)S
v(SPCL-SOMI)S
c(SPC)S
c(SPC)S
§
ns
15
Delay time, SPICLK low to SPISOMI valid (clock polarity = 1)
0.375t
Valid time, SPISOMI data valid after SPICLK low
(clock polarity =0)
0.75t
c(SPC)S
§
16
ns
ns
ns
Valid time, SPISOMI data valid after SPICLK high
(clock polarity =1)
t
0.75t
v(SPCH-SOMI)S
c(SPC)S
t
t
Setup time, SPISIMO before SPICLK low (clock polarity = 0)
Setup time, SPISIMO before SPICLK high (clock polarity = 1)
0
0
su(SIMO-SPCL)S
§
19
su(SIMO-SPCH)S
Valid time, SPISIMO data valid after SPICLK low
(clock polarity = 0)
t
0.5t
0.5t
v(SPCL-SIMO)S
v(SPCH-SIMO)S
c(SPC)S
§
20
Valid time, SPISIMO data valid after SPICLK high
(clock polarity = 1)
t
c(SPC)S
†
‡
§
The MASTER/SLAVE bit (SPICTL.2) is cleared and the CLOCK PHASE bit (SPICTL.3) is cleared.
t = system clock cycle time = 1/CLKOUT = t
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
c
c(CO)
77
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
12
SPICLK
(clock polarity = 0)
13
14
SPICLK
(clockpolarity = 1)
15
16
SPISOMI
SPISIMO
SPISOMI Data Is Valid
19
20
SPISIMO Data
Must Be Valid
†
SPISTE
†
TheSPISTEsignalmustbeactivebeforetheSPIcommunicationstreamstarts;theSPISTEsignalmustremainactiveuntil
theSPI communication stream is complete.
Figure 34. SPI Slave Mode External Timing (Clock Phase = 0)
78
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†‡
SPI slave mode external timing parameters (clock phase = 1) (see Figure 35)
NO.
MIN
MAX
UNIT
12
t
t
t
t
t
t
t
Cycle time, SPICLK
8t
ns
c(SPC)S
c(CO)
Pulse duration, SPICLK high (clock polarity = 0)
Pulse duration, SPICLK low (clock polarity = 1)
Pulse duration, SPICLK low (clock polarity = 0)
Pulse duration, SPICLK high (clock polarity = 1)
Setup time, SPISOMI before SPICLK high (clock polarity = 0)
Setup time, SPISOMI before SPICLK low (clock polarity = 1)
0.5t
0.5t
0.5t
0.5t
–10 0.5t
–10 0.5t
–10 0.5t
–10 0.5t
w(SPCH)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
c(SPC)S
§
13
ns
ns
ns
w(SPCL)S
w(SPCL)S
§
14
w(SPCH)S
0.125t
c(SPC)S
su(SOMI-SPCH)S
su(SOMI-SPCL)S
§
17
0.125t
c(SPC)S
Valid time, SPISOMI data valid after SPICLK high
(clock polarity =0)
t
t
0.75t
v(SPCH-SOMI)S
v(SPCL-SOMI)S
c(SPC)S
§
ns
ns
ns
18
Valid time, SPISOMI data valid after SPICLK low
(clock polarity =1)
0.75t
c(SPC)S
t
t
Setup time, SPISIMO before SPICLK high (clock polarity = 0)
Setup time, SPISIMO before SPICLK low (clock polarity = 1)
0
0
su(SIMO-SPCH)S
§
21
su(SIMO-SPCL)S
Valid time, SPISIMO data valid after SPICLK high
(clock polarity = 0)
t
0.5t
0.5t
v(SPCH-SIMO)S
v(SPCL-SIMO)S
c(SPC)S
§
22
Valid time, SPISIMO data valid after SPICLK low
(clock polarity = 1)
t
c(SPC)S
†
‡
§
The MASTER/SLAVE bit (SPICTL.2) is cleared and the CLOCK PHASE bit (SPICTL.3) is set.
t = system clock cycle time = 1/CLKOUT = t
The active edge of the SPICLK signal referenced is controlled by the CLOCK POLARITY bit (SPICCR.6).
c
c(CO)
79
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
PARAMETER MEASUREMENT INFORMATION
12
SPICLK
(clock polarity = 0)
13
14
SPICLK
(clock polarity = 1)
17
18
SPISOMI
SPISIMO
SPISOMI Data Is Valid
21
Data Valid
22
SPISIMO Data
Must Be Valid
†
SPISTE
†
TheSPISTEsignalmustbeactivebeforetheSPIcommunicationstreamstarts;theSPISTEsignalmustremainactiveuntil
theSPI communication stream is complete.
Figure 35. SPI Slave Mode External Timing (Clock Phase = 1)
80
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface read timings
switching characteristics over recommended operating conditions for an external memory
interface read (see Figure 36)
PARAMETER
Delay time, CLKOUT low to control valid
MIN
MAX
UNIT
ns
t
t
t
t
3
3
5
4
d(COL–CNTL)
d(COL–CNTH)
d(COL–A)RD
d(COH–RDL)
ns
Delay time, CLKOUT low to control inactive
Delay time, CLKOUT low to address valid
Delay time, CLKOUT high to RD strobe active
ns
ns
t
t
t
–4
0
3
3
ns
ns
ns
Delay time, CLKOUT low to RD strobe inactive high
Delay time, CLKOUT low to STRB strobe active low
Delay time, CLKOUT low to STRB strobe inactive high
d(COL–RDH)
d(COL–SL)
d(COL–SH)
t
t
t
–4
22
–1
ns
ns
ns
Hold time, address valid after CLKOUT low
h(A)COL
su(A)RD
h(A)RD
Setup time, address valid before RD strobe active low
Hold time, address valid after RD strobe inactive high
timing requirements [H = 0.5t
] (see Figure 36)
c(CO)
MIN
MAX
UNIT
t
t
t
t
2H–13
ns
Access time, read data from address valid
Setup time, read data before RD strobe inactive high
Hold time, read data after RD strobe inactive high
Hold time, read data after address invalid
a(A)
12
ns
ns
ns
su(D)RD
h(D)RD
h(AIV-D)
0
–3
81
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface read timings (continued)
CLKOUT
t
d(COL–CNTL)
t
d(COL–CNTH)
PS, DS, IS, BR
t
d(COL–A)RD
t
d(COL–A)RD
t
h(A)COL
t
h(A)COL
A[0:15]
t
d(COH–RDL)
t
d(COL–RDH)
t
t
a(A)
d(COH–RDL)
t
d(COL–RDH)
t
h(A)RD
RD
t
h(AIV–D)
t
su(A)RD
t
a(A)
t
su(D)RD
t
h(D)RD
t
su(D)RD
t
h(D)RD
D[0:15]
t
d(COL–SL)
t
d(COL–SH)
STRB
Figure 36. Memory Interface Read/Read Timings
82
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface write timings
switching characteristics over recommended operating conditions for an external memory
interface write [H = 0.5t
] (see Figure 37)
c(CO)
PARAMETER
MIN MAX
UNIT
ns
t
t
t
t
9
Delay time, CLKOUT high to control valid
Delay time, CLKOUT high to control inactive
Delay time, CLKOUT high to address valid
Delay time, CLKOUT high to R/W low
d(COH–CNTL)
d(COH–CNTH)
d(COH–A)W
9
11
6
ns
ns
ns
d(COH–RWL)
t
t
t
t
t
t
6
0
0
ns
ns
ns
ns
ns
ns
Delay time, CLKOUT high to R/W high
d(COH–RWH)
d(COL–WL)
d(COL–WH)
en(D)COL
–4
–4
7
Delay time, CLKOUT low to WE strobe active low
Delay time, CLKOUT low to WE strobe inactive high
Enable time, data bus driven from CLKOUT low
Delay time, CLKOUT low to STRB active low
Delay time, CLKOUT low to STRB inactive high
3
3
d(COL–SL)
d(COL–SH)
t
t
t
t
H–1
H–9
2H–1
3
ns
ns
ns
ns
Hold time, address valid after CLKOUT high
h(A)COHW
su(A)W
su(D)W
h(D)W
Setup time, address valid before WE strobe active low
Setup time, write data before WE strobe inactive high
Hold time, write data after WE strobe inactive high
t
4
ns
Disable time, data bus high impedance from WE high
dis(W-D)
83
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface write timings (continued)
CLKOUT
t
d(COH–CNTL)
d(COH–A)W
t
d(COH–CNTH)
t
d(COH–CNTL)
PS, DS, IS, BR
t
t
h(A)COHW
A[0:15]
t
d(COH–RWL)
t
d(COH–RWH)
t
su(A)W
R/W
t
d(COL–WL)
t
d(COL–WH)
t
d(COL–WH)
t
d(COL–WL)
WE
t
dis(W-D)
t
en(D)COL
t
en(D)COL
t
su(D)W
t
su(D)W
t
h(D)W
t
h(D)W
D[0:15]
t
d(COL–SL)
t
d(COL–SL)
t
d(COL–SH)
t
d(COL–SH)
STRB
ENA_144
CLKOUT
2H
2H
VIS_OE
NOTE A: ENA_144whenactivelowalongwithBVISbits(10,9setto01or11)inregisterWSGR-IO@FFFFh,CLKOUTandVIS_OEwillbevisible
atpinsxx(’LF240x)andxx(’LF240x),respectively. CLKOUTandVIS_OEindicateinternalmemorywritecycles(program/data). During
VIS_OE cycles, the external bus will be driven. CLKOUT is to be used along with VIS_OE for trace capabilities.
Figure 37. Address Visibility Mode
84
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface ready-on-read timings
switching characteristics over recommended operating conditions for an external memory
interface ready-on-read (see Figure 38)
PARAMETER
Delay time, CLKOUT low to address valid
MIN MAX
UNIT
t
5
MAX
4
ns
d(COL–A)RD
timing requirements for an external memory interface ready-on-read (see Figure 38)
MIN
UNIT
t
–5
12
ns
Hold time, READY after CLKOUT high
h(RDY)COH
t
t
t
ns
ns
ns
Setup time, read data before RD strobe inactive high
Valid time, READY after address valid on read
Setup time, READY before CLKOUT high
su(D)RD
v(RDY)ARD
su(RDY)COH
17
CLKOUT
Wait Cycle
PS, DS, IS, BR
t
d(COL–A)RD
A[0:15]
RD
t
su(D)RD
D[0:15]
STRB
t
v(RDY)ARD
t
h(RDY)COH
READY
t
su(RDY)COH
Figure 38. Ready-on-Read Timings
85
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
external memory interface ready-on-write timings
switching characteristics over recommended operating conditions for an external memory
interface ready-on-write (see Figure 39)
PARAMETER
Delay time, CLKOUT high to address valid
MIN
MAX
UNIT
t
11
ns
d(COH–A)W
timing requirements for an external memory interface ready-on-write [H = 0.5t
(see Figure 39)
]
c(CO)
MIN
MAX
UNIT
t
t
t
t
–5
ns
Hold time, READY after CLKOUT high
h(RDY)COH
2H–1
2H
4
ns
ns
ns
Setup time, write data before WE strobe inactive high
Valid time, READY after address valid on write
Setup time, READY before CLKOUT high
su(D)W
v(RDY)AW
su(RDY)COH
17
CLKOUT
Wait Cycle
PS, DS, IS, BR
t
d(COH–A)W
A[0:15]
WE
t
su(D)W
D[0:15]
STRB
t
v(RDY)AW
t
su(RDY)COH
t
h(RDY)COH
READY
Figure 39. Ready-on-Write Timings
86
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
10-bit analog-to-digital converter (ADC)
The 10-bit ADC has a separate power bus for its analog circuitry. These pins are referred to as V
and V
.
CCA
SSA
The power bus isolation is to enhance ADC performance by preventing digital switching noise of the logic
circuitry that can be present on V and V from coupling into the ADC analog stage. All ADC specifications
SS
CC
are given with respect to V
unless otherwise noted.
SSA
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-bit (1024 values)
Monotonic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assured
Output conversion mode . . . . . . . . . . . . . . . . . . . . . . . 000h to 3FFh (000h for V ≤ V
; 3FFh for V ≥ V
)
I
SSA
I
CCA
Conversion time (including sample time) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ns
recommended operating conditions
MIN
NOM
3.3
0
MAX
UNIT
V
V
V
V
Analogsupply voltage
Analogground
3.0
3.6
V
V
V
V
V
CCA
SSA
†
Analog supply reference source
V
V
CCA
REFHI
REFLO
REFLO
†
Analog ground reference source
V
V
REFHI
SSA
SSA
V
AI
Analoginputvoltage,ADCIN00–ADCIN07
V
V
CCA
†
V
and V
must be stable, within ±1/2 LSB of the required resolution, during the entire conversion time.
REFLO
REFHI
ADC operating frequency
MIN
MAX
UNIT
ADCoperating frequency
30
MHz
87
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
†
operating characteristics over recommended operating condition ranges
PARAMETER
DESCRIPTION
Converting
MIN
MAX
10
UNIT
V
V
= 3.3 V
mA
CCA
Non-converting
2
I
Analog supply current
CCA
PLL or OSC power
down
= V
= 3.3 V
1
mA
CCA
REFHI
Non-sampling
Sampling
10
30
Typical capacitive load on
analog input pin
C
ai
Analoginputcapacitance
pF
Difference between the actual step width and the ideal
value
E
DNL
Differentialnonlinearityerror
"2
LSB
Maximum deviation from the best straight line through
the ADC transfer characteristics, excluding the
quantizationerror
E
INL
Integralnonlinearityerror
"2
LSB
t
Delay time, power-up to ADC valid
Analog input source impedance
Time to stabilize analog stage after power-up
10
10
ms
d(PU)
Analog input source impedance for conversions to
Z
Ω
AI
remain within specifications at min t
w(SH)
†
Absolute resolution=4.89mV. AtV
REFHI
=3.3VandV
REFLO
=0V,thisisoneLSB.AsV
decreases,V
increases,orboth,theLSB
REFLO
REFHI
size decreases. Therefore, the absolute accuracy and differential/integral linearity errors in terms of LSBs increase.
88
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TMS320LF2407,TMS320LF2406, TMS320LF2402
TMS320LC2406,TMS320LC2404,TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
internal ADC module timings (see Figure 40)
MIN
MAX
UNIT
ns
t
t
t
t
t
t
Cycle time, ADC prescaled clock
33.3
c(AD)
†
Pulse duration, total sample/hold and conversion time
Pulse duration, sample and hold time
Pulse duration, total conversion time
500
‡
ns
w(SHC)
w(SH)
2t
32t
ns
c(AD)
c(AD)
10t
ns
w(C)
c(AD)
c(CO)
c(CO)
Delay time, start of conversion to beginning of sample and hold
Delay time, end of conversion to data loaded into result register
3t
2t
ns
d(SOC-SH)
d(EOC-FIFO)
ns
t
Delay time, ADC flag to ADC interrupt
2t
c(CO)
ns
d(ADCINT)
†
‡
The total sample/hold and conversion time is determined by the summation of t
Can be varied by ACQ Prescalar bits in the ADCCTRL1 register
, t
), t
, and t
.
d(EOC-FIFO)
d(SOC-SH) w(SH w(C)
t
c(AD)
Bit Converted
ADC Clock
9
8
7
6
5
4
3
1
0
2
Analog Input
EOC/Convert
t
w(C)
t
w(SH)
InternalStart/
SampleHold
t
d(SOC–SH)
Start of Convert
XFR to FIFO
t
d(EOC–FIFO)
t
w(SHC)
t
d(ADCINT)
Figure 40. Analog-to-Digital Internal Module Timing
89
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TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description
Table 18 is a collection of all the programmable registers of the ’LF240x/’LC240x and is provided as a quick
reference.
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
DATA MEMORY SPACE
CPU STATUS REGISTERS
ARP
DP(6)
ARB
1
OV
DP(4)
CNF
XF
OVM
DP(3)
TC
1
DP(2)
SXM
1
INTM
DP(1)
C
DP(8)
DP(0)
1
ST0
ST1
DP(7)
1
DP(5)
1
1
PM
GLOBAL MEMORY AND CPU INTERRUPT REGISTERS
—
—
—
—
—
—
—
—
—
—
00004h
00005h
00006h
IMR
INT6 MASK
INT5 MASK
INT4 MASK
INT3 MASK
INT2 MASK
INT1 MASK
Reserved
GREG
IFR
—
—
—
—
—
—
—
—
—
—
INT6 FLAG
INT5 FLAG
INT4 FLAG
INT3 FLAG
INT2 FLAG
INT1 FLAG
SYSTEM REGISTERS
IRQ0.15
IRQ0.7
IRQ1.15
IRQ1.7
IRQ0.14
IRQ0.6
IRQ1.14
IRQ1.6
IRQ0.13
IRQ0.5
IRQ1.13
IRQ1.5
IRQ0.12
IRQ0.11
IRQ0.3
IRQ1.11
IRQ1.3
IRQ0.10
IRQ0.2
IRQ1.10
IRQ1.2
IRQ0.9
IRQ0.1
IRQ1.9
IRQ1.1
IRQ0.8
IRQ0.0
IRQ1.8
IRQ1.0
07010h
07011h
PIRQR0
IRQ0.4
IRQ1.12
IRQ1.4
PIRQR1
PIRQR2
07012h
07013h
Reserved
Reserved
IAK0.11
IAK0.15
IAK0.7
IAK1.15
IAK1.7
IAK0.14
IAK0.6
IAK1.14
IAK1.6
IAK0.13
IAK0.5
IAK1.13
IAK1.5
IAK0.12
IAK0.4
IAK1.12
IAK1.4
IAK0.10
IAK0.2
IAK1.10
IAK1.2
IAK0.9
IAK0.1
IAK1.9
IAK1.1
IAK0.8
IAK0.0
IAK1.8
IAK1.0
07014h
07015h
PIACKR0
IAK0.3
IAK1.11
IAK1.3
PIACKR1
PIACKR2
07016h
07017h
Reserved
Reserved
OSC FAIL
FLAG
OSC FAIL
RESET
CLKSRC
LPM1
LPM0
CLK PS2
CLK PS1
CLK PS0
07018h
SCSR1
SCSR2
NMI EN
(test only)
ADC CLKEN
SCI CLKEN
SPI CLKEN
—
CAN CLKEN
—
EVB CLKEN
—
EVA CLKEN
—
ILLADR
—
—
—
—
—
—
07019h
WD
OVERRIDE
XMIF HI Z
BOOT_EN
MP/MC
DON
PON
0701Ah
to
Reserved
0701Bh
DIN15
DIN7
DIN14
DIN6
DIN13
DIN5
DIN12
DIN4
DIN11
DIN3
DIN10
DIN2
DIN9
DIN1
DIN8
DIN0
0701Ch
0701Dh
0701Eh
0701Fh
DINR
PIVR
Reserved
V15
V7
V14
V6
V13
V5
V12
V4
V11
V3
V10
V2
V9
V1
V8
V0
Reserved
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
90
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
WD CONTROL REGISTERS
07020h
to
Reserved
07022h
07023h
07024h
07025h
D7
D7
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
WDCNTR
WDKEY
Reserved
Reserved
07026h
to
07028h
07029h
WD FLAG
WDDIS
WDCHK2
WDCHK1
WDCHK0
Reserved
WDPS2
WDPS1
WDPS0
WDCR
0702Ah
to
07031h
07032h
to
07038h
Reserved
Reserved
07039h
to
0703Fh
SERIAL PERIPHERAL INTERFACE (SPI) CONFIGURATION CONTROL REGISTERS
SPI SW
RESET
CLOCK
POLARITY
SPI
CHAR3
SPI
CHAR2
SPI
CHAR1
SPI
CHAR0
07040h
07041h
—
—
—
SPICCR
SPICTL
OVERRUN
INT ENA
CLOCK
PHASE
MASTER/
SLAVE
SPI INT
ENA
—
—
TALK
—
RECEIVER
OVERRUN
FLAG
SPI INT
FLAG
TX BUF
FULL FLAG
07042h
—
—
—
—
SPISTS
SPIBRR
07043h
07044h
07045h
Reserved
SPI BIT
RATE 6
SPI BIT
RATE 5
SPI BIT
RATE 4
SPI BIT
RATE 3
SPI BIT
RATE 2
SPI BIT
RATE 1
SPI BIT
RATE 0
—
Reserved
ERXB15
ERXB7
RXB15
RXB7
ERXB14
ERXB6
RXB14
RXB6
ERXB13
ERXB5
RXB13
RXB5
ERXB12
ERXB4
RXB12
RXB4
ERXB11
ERXB3
RXB11
RXB3
ERXB10
ERXB2
RXB10
RXB2
ERXB9
ERXB1
RXB9
ERXB8
ERXB0
RXB8
07046h
07047h
07048h
07049h
SPIRXEMU
SPIRXBUF
SPITXBUF
SPIDAT
RXB1
RXB0
TXB15
TXB7
TXB14
TXB6
TXB13
TXB5
TXB12
TXB4
TXB11
TXB3
TXB10
TXB2
TXB9
TXB8
TXB1
TXB0
SDAT15
SDAT7
SDAT14
SDAT6
SDAT13
SDAT5
SDAT12
SDAT4
SDAT11
SDAT3
SDAT10
SDAT2
SDAT9
SDAT1
SDAT8
SDAT0
0704Ah
to
Reserved
0704Eh
SPI
PRIORITY
SPI
SUSP SOFT
SPI
SUSP FREE
0704Fh
—
—
—
—
—
SPIPRI
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
91
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
SERIAL COMMUNICATIONS INTERFACE (SCI) CONFIGURATION CONTROL REGISTERS
STOP
BITS
EVEN/ODD
PARITY
PARITY
ENABLE
LOOP BACK
ENA
ADDR/IDLE
MODE
SCI
CHAR2
SCI
CHAR1
SCI
CHAR0
07050h
07051h
07052h
07053h
07054h
SCICCR
RX ERR
INT ENA
—
SW RESET
BAUD13
BAUD5
—
—
BAUD12
BAUD4
—
TXWAKE
BAUD11
BAUD3
—
SLEEP
BAUD10
BAUD2
—
TXENA
BAUD9
BAUD1
RXENA
BAUD8
SCICTL1
SCIHBAUD
SCILBAUD
SCICTL2
BAUD15
(MSB)
BAUD14
BAUD6
BAUD0
(LSB)
BAUD7
TXRDY
RX/BK
INT ENA
TX
INT ENA
TX EMPTY
07055h
07056h
07057h
07058h
07059h
RX ERROR
ERXDT7
RXDT7
RXRDY
ERXDT6
RXDT6
BRKDT
ERXDT5
RXDT5
FE
OE
PE
RXWAKE
ERXDT1
RXDT1
—
SCIRXST
ERXDT4
RXDT4
ERXDT3
RXDT3
ERXDT2
RXDT2
ERXDT0
RXDT0
SCIRXEMU
SCIRXBUF
Reserved
TXDT7
TXDT6
TXDT5
TXDT4
TXDT3
TXDT2
TXDT1
TXDT0
SCITXBUF
0705Ah
to
Reserved
0705Eh
SCITX
PRIORITY
SCIRX
PRIORITY
SCI
SOFT
SCI
FREE
0705Fh
—
—
—
—
SCIPRI
07060h
to
0706Fh
Reserved
EXTERNAL INTERRUPT CONTROL REGISTERS
XINT1
FLAG
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
07070h
07071h
XINT1CR
XINT2CR
XINT1
POLARITY
XINT1
PRIORITY
XINT1
ENA
—
XINT2
FLAG
—
—
—
XINT2
POLARITY
XINT2
PRIORITY
XINT2
ENA
—
07072h
to
0708Fh
Reserved
DIGITAL I/O CONTROL REGISTERS
MCRA.15
MCRA.7
MCRA.14
MCRA.6
MCRA.13
MCRA.5
MCRA.12
MCRA.4
MCRA.11
MCRA.3
MCRA.10
MCRA.2
MCRA.9
MCRA.1
MCRA.8
MCRA.0
07090h
07091h
07092h
07093h
07094h
MCRA
MCRB
Reserved
MCRB.15
MCRB.7
MCRB.14
MCRB.6
MCRB.13
MCRB.5
MCRB.12
MCRB.4
MCRB.11
MCRB.3
MCRB.10
MCRB.2
MCRB.9
MCRB.1
MCRB.8
MCRB.0
Reserved
MCRC.15
MCRC.7
E7DIR
MCRC.14
MCRC.6
E6DIR
MCRC.13
MCRC.5
E5DIR
MCRC.12
MCRC.4
E4DIR
MCRC.11
MCRC.3
E3DIR
MCRC.10
MCRC.2
E2DIR
MCRC.9
MCRC.1
E1DIR
MCRC.8
MCRC.0
E0DIR
MCRC
07095h
PEDATDIR
IOPE7
IOPE6
IOPE5
IOPE4
IOPE3
IOPE2
IOPE1
IOPE0
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
92
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
DIGITAL I/O CONTROL REGISTERS (CONTINUED)
BIT 12
BIT 11
BIT 10
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
BIT 4
BIT 3
BIT 2
F7DIR
IOPF7
A7DIR
IOPA7
F6DIR
IOPF6
A6DIR
IOPA6
F5DIR
IOPF5
A5DIR
IOPA5
F4DIR
IOPF4
A4DIR
IOPA4
F3DIR
IOPF3
A3DIR
IOPA3
F2DIR
IOPF2
A2DIR
IOPA2
F1DIR
IOPF1
A1DIR
IOPA1
F0DIR
IOPF0
A0DIR
IOPA0
07096h
PFDATDIR
PADATDIR
07098h
07099h
0709Ah
0709Bh
0709Ch
0709Dh
0709Eh
0709Fh
Reserved
B7DIR
IOPB7
B6DIR
IOPB6
B5DIR
IOPB5
B4DIR
IOPB4
B3DIR
IOPB3
B2DIR
IOPB2
B1DIR
IOPB1
B0DIR
IOPB0
PBDATDIR
PCDATDIR
PDDATDIR
Reserved
C7DIR
IOPC7
C6DIR
IOPC6
C5DIR
IOPC5
C4DIR
IOPC4
C3DIR
IOPC3
C2DIR
IOPC2
C1DIR
IOPC1
C0DIR
IOPC0
Reserved
D7DIR
IOPD7
D6DIR
IOPD6
D5DIR
IOPD5
D4DIR
IOPD4
D3DIR
IOPD3
D2DIR
IOPD2
D1DIR
IOPD1
D0DIR
IOPD0
Reserved
ANALOG-TO-DIGITAL CONVERTER (ADC) REGISTERS
ADC
S/W RESET
ACQ
ACQ
ACQ
ACQ
PRESCALE0
—
SOFT
FREE
PRESCALE3 PRESCALE2 PRESCALE1
070A0h
ADCCTRL1
CONV PRE-
SCALE (CPS) UOUS RUN
CONTIN-
INT
PRIORITY
SEQ1/2
CASCADE
CALIB EN
INT ENA
SEQ1 Mode1 SEQ1 Mode0
INT ENA INT ENA
SEQ2 Mode1 SEQ2 Mode0
BRIDGE EN
INT ENA
HI / LO
FSTEST EN
EVB SOC
EN SEQ1
Reset SEQ1
Start CALIB
INT FLAG
SEQ1
EVA SOC
EN SEQ1
SOC SEQ1
SEQ1 BUSY
070A1h
070A2h
ADCCTRL2
MAXCONV
EXT SOC
EN SEQ1
INT FLAG
SEQ2
EVB SOC
EN SEQ2
Reset SEQ2
—
SOC SEQ2
—
SEQ2 BUSY
—
—
—
—
—
—
—
MAXCONV2
2
MAXCONV2
1
MAXCONV2
0
MAXCONV1
3
MAXCONV1
2
MAXCONV1
1
MAXCONV1
0
CONV 3
CONV 1
CONV 7
CONV 5
CONV 11
CONV 9
CONV 15
CONV 13
—
CONV 3
CONV 1
CONV 7
CONV 5
CONV 11
CONV 9
CONV 15
CONV 13
—
CONV 3
CONV 1
CONV 7
CONV 5
CONV 11
CONV 9
CONV 15
CONV 13
—
CONV 3
CONV 1
CONV 7
CONV 5
CONV 11
CONV 9
CONV 15
CONV 13
—
CONV 2
CONV 0
CONV 2
CONV 0
CONV 2
CONV 0
CONV 2
CONV 0
070A3h
070A4h
070A5h
070A6h
CHSELSEQ1
CHSELSEQ2
CHSELSEQ3
CHSELSEQ4
CONV 6
CONV 6
CONV 6
CONV 6
CONV 4
CONV 4
CONV 4
CONV 4
CONV 10
CONV 8
CONV 10
CONV 8
CONV 10
CONV 8
CONV 10
CONV 8
CONV 14
CONV 12
SEQ CNTR3
CONV 14
CONV 12
SEQ CNTR2
CONV 14
CONV 12
SEQ CNTR1
CONV 14
CONV 12
SEQ CNTR0
SEQ2
STATE
2
SEQ2
STATE
1
SEQ2
STATE
0
SEQ1
STATE
1
070A7h
AUTO_SEQ_SR
SEQ2-STATE
3
SEQ1-STATE SEQ1-STATE
SEQ1-STATE
0
3
2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
070A8h
070A9h
070AAh
RESULT0
RESULT1
RESULT2
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
93
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
ANALOG-TO-DIGITAL CONVERTER (ADC) REGISTERS (CONTINUED)
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D8
D0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
070ABh
070ACh
070ADh
070AEh
070AFh
070B0h
070B1h
070B2h
070B3h
070B4h
070B5h
070B6h
070B7h
070B8h
RESULT3
RESULT4
RESULT5
RESULT6
RESULT7
RESULT8
RESULT9
RESULT10
RESULT11
RESULT12
RESULT13
RESULT14
RESULT15
CALIBRATION
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
00
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
070B9h
to
Reserved
070FFh
CONTROLLER AREA NETWORK (CAN) CONFIGURATION CONTROL REGISTERS
—
MD3
TA5
—
MD2
TA4
—
—
ME4
TA2
—
—
—
ME1
—
ME0
07100h
07101h
07102h
07103h
07104h
MDER
TCR
ME5
TA3
ME3
AA5
TRR5
RML3
OPC3
PDR
—
ME2
AA4
TRR4
RML2
OPC2
DBO
—
AA3
AA2
TRS5
RFP3
RMP3
—
TRS4
RFP2
RMP2
—
TRS3
RFP1
RMP1
SUSP
—
TRS2
RFP0
RMP0
CCR
—
TRR3
RML1
OPC1
WUBA
MBNR1
—
TRR2
RML0
OPC0
CDR
MBNR0
—
RCR
MCR
BCR2
ABO
—
STM
—
—
—
—
—
BRP7
BRP6
BRP5
BRP4
BRP3
BRP2
BRP1
BRP0
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
94
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
CONTROLLER AREA NETWORK (CAN) CONFIGURATION CONTROL REGISTERS (CONTINUED)
BIT 13
BIT 12
BIT 11
BIT 10
BIT 9
BIT 8
BIT 0
ADDR
REG
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
—
SAM
—
TSEG1–3
—
—
TSEG1–2
—
—
—
SBG
TSEG2–2
—
SJW1
TSEG2–1
—
SJW0
TSEG2–0
FER
07105h
07106h
07107h
07108h
07109h
0710Ah
0710Bh
0710Ch
0710Dh
0710Eh
BCR1
TSEG1–1
—
TSEG1–0
—
—
ESR
BEF
SA1
CRCE
—
SER
ACKE
BO
EP
EW
—
—
—
—
—
—
—
GSR
—
—
SMA
CCE
PDA
—
RM
TM
TEC7
REC7
—
TEC6
REC6
—
TEC5
REC5
MIF5
TEC4
TEC3
TEC2
TEC1
TEC0
CEC
REC4
REC3
REC2
REC1
REC0
MIF4
MIF3
MIF2
MIF1
MIF0
CAN_IFR
CAN_IMR
LAM0_H
LAM0_L
LAM1_H
LAM1_L
—
RMLIF
—
AAIF
WDIF
WUIF
BOIF
EPIF
WLIF
MIL
MIM5
MIM4
MIM3
MIM2
MIM1
MIM0
EIL
RMLIM
—
AAIM
WDIM
WUIM
BOIM
EPIM
WLIM
LAMI
LAM0–23
LAM0–15
LAM0–7
LAMI
LAM1–23
LAM1–15
LAM1–7
—
LAM0–28
LAM0–20
LAM0–12
LAM0–4
LAM1–28
LAM1–20
LAM1–12
LAM1–4
LAM0–27
LAM0–19
LAM0–11
LAM0–3
LAM1–27
LAM1–19
LAM1–11
LAM1–3
LAM0–26
LAM0–18
LAM0–10
LAM0–2
LAM1–26
LAM1–18
LAM1–10
LAM1–2
LAM0–25
LAM0–17
LAM0–9
LAM0–1
LAM1–25
LAM1–17
LAM1–9
LAM1–1
LAM0–24
LAM0–16
LAM0–8
LAM0–0
LAM1–24
LAM1–16
LAM1–8
LAM1–0
LAM0–22
LAM0–14
LAM0–6
—
LAM0–21
LAM0–13
LAM0–5
—
LAM1–22
LAM1–14
LAM1–6
LAM1–21
LAM1–13
LAM1–5
0710Fh
to
Reserved
071FFh
Message Object #0
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07200h
07201h
MSGID0L
MSGID0H
MSGCTRL0
IDL–4
IDH–28
IDH–20
—
IDH–23
—
07202h
07203h
07204h
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
MBX0A
MBX0B
MBX0C
MBX0D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07205h
07206h
07207h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
95
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
CONTROLLER AREA NETWORK (CAN) CONFIGURATION CONTROL REGISTERS (CONTINUED)
Message Object #1
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–4
IDH–28
IDH–20
—
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07208h
07209h
MSGID1L
MSGID1H
MSGCTRL1
IDH–23
—
0720Ah
0720Bh
0720Ch
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
MBX1A
MBX1B
MBX1C
MBX1D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0720Dh
0720Eh
0720Fh
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
Message Object #2
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07210h
07211h
MSGID2L
MSGID2H
MSGCTRL2
IDL–4
IDH–28
IDH–20
—
IDH–23
—
07212h
07213h
07214h
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
MBX2A
MBX2B
MBX2C
MBX2D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07215h
07216h
07217h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
Message Object #3
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07218h
07219h
MSGID3L
MSGID3H
MSGCTRL3
IDL–4
IDH–28
IDH–20
—
IDH–23
—
0721Ah
0721Bh
0721Ch
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D8
D0
MBX3A
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
96
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
CONTROLLER AREA NETWORK (CAN) CONFIGURATION CONTROL REGISTERS (CONTINUED)
BIT 13
BIT 12
BIT 11
BIT 10
BIT 9
BIT 8
BIT 0
ADDR
REG
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
0721Dh
0721Eh
0721Fh
MBX3B
MBX3C
MBX3D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
Message Object #4
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07220h
07221h
MSGID4L
MSGID4H
MSGCTRL4
IDL–4
IDH–28
IDH–20
—
IDH–23
—
07222h
07223h
07224h
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
MBX4A
MBX4B
MBX4C
MBX4D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07225h
07226h
07227h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
Message Object #5
IDL–15
IDL–7
IDE
IDL–14
IDL–6
AME
IDH–22
—
IDL–13
IDL–5
AAM
IDH–21
—
IDL–12
IDL–11
IDL–3
IDH–27
IDH–19
—
IDL–10
IDL–2
IDH–26
IDH–18
—
IDL–9
IDL–1
IDH–25
IDH–17
—
IDL–8
IDL–0
IDH–24
IDH–16
—
07228h
07229h
MSGID5L
MSGID5H
MSGCTRL5
IDL–4
IDH–28
IDH–20
—
IDH–23
—
0722Ah
0722Bh
0722Ch
—
—
—
RTR
DLC3
DLC2
DLC1
DLC0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
D8
D0
MBX5A
MBX5B
MBX5C
MBX5D
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0722Dh
0722Eh
0722Fh
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07230h
to
Reserved
073FFh
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
97
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
GENERAL-PURPOSE (GP) TIMER CONFIGURATION CONTROL REGISTERS – EVA
—
T1TOADC(0)
D15
T2STAT
TCOMPOE
D14
T1STAT
—
T2TOADC
T1TOADC(1)
07400h
07401h
07402h
07403h
07404h
07405h
07406h
07407h
07408h
GPTCONA
T1CNT
T1CMPR
T1PR
—
T2PIN
T1PIN
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D8
D0
D7
D6
D15
D14
D13
D5
D12
D11
D10
D2
D9
D8
D7
D6
D4
D3
D1
D0
D15
D14
D13
D5
D12
D11
D10
D2
D9
D8
D7
D6
D4
D3
D1
D0
FREE
TSWT1
D15
SOFT
TENABLE
D14
—
TMODE1
TCLKS0
D12
TMODE0
TCLD1
D11
TPS2
TPS1
TECMPR
D9
TPS0
SELT1PR
D8
T1CON
T2CNT
T2CMPR
T2PR
TCLKS1
D13
D5
TCLD0
D10
D7
D6
D4
D3
D2
D1
D0
D15
D14
D13
D5
D12
D11
D10
D9
D8
D7
D6
D4
D3
D2
D1
D0
D15
D14
D13
D5
D12
D11
D10
D9
D8
D7
D6
D4
D3
D2
D1
D0
FREE
TSWT1
SOFT
TENABLE
—
TMODE1
TCLKS0
TMODE0
TCLD1
TPS2
TCLD0
TPS1
TECMPR
TPS0
SELT1PR
T2CON
TCLKS1
07409h
to
Reserved
07410h
FULL AND SIMPLE COMPARE UNIT REGISTERS – EVA
CENABLE
—
CLD1
—
CLD0
—
SVENABLE
—
ACTRLD1
—
ACTRLD0
—
FCOMPOE
—
—
—
07411h
07412h
07413h
07414h
07415h
07416h
07417h
COMCONA
ACTRA
Reserved
SVRDIR
D2
D1
D0
CMP6ACT1
CMP2ACT1
CMP6ACT0
CMP2ACT0
CMP5ACT1
CMP1ACT1
CMP5ACT0
CMP1ACT0
CMP4ACT1
CMP4ACT0
CMP3ACT1
CMP3ACT0
Reserved
—
—
—
—
DBT3
DBT2
DBT1
—
DBT0
—
DBTCONA
EDBT3
EDBT2
EDBT1
DBTPS2
DBTPS1
DBTPS0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
CMPR1
CMPR2
CMPR3
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07418h
07419h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0741Ah
to
Reserved
0741Fh
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
98
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
CAPTURE UNIT REGISTERS – EVA
BIT 11
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
BIT 3
CAPRES
CAPQEPN
CAP3EN
CAP2EDGE
—
CAP3TSEL
CAP3EDGE
CAP12TSEL
CAP3TOADC
07420h
07421h
07422h
CAPCONA
CAP1EDGE
—
Reserved
—
CAP3FIFO
CAP2FIFO
CAP1FIFO
CAPFIFOA
CAP1FIFO
CAP2FIFO
CAP3FIFO
—
D15
D7
—
D14
D6
—
D13
D5
—
D12
D4
—
—
D10
D2
—
—
D11
D3
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
07423h
07424h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07425h
07426h
07427h
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
CAP1FBOT
CAP2FBOT
CAP3FBOT
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07428h
07429h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0742Ah
to
Reserved
0742Bh
EVENT MANAGER (EVA) INTERRUPT CONTROL REGISTERS
T1OFINT
ENA
T1UFINT
ENA
T1CINT
ENA
—
—
—
—
—
0742Ch
EVAIMRA
T1PINT
ENA
CMP3INT
ENA
CMP2INT
ENA
CMP1INT
ENA
PDPINT
ENA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0742Dh
0742Eh
EVAIMRB
EVAIMRC
T2OFINT
ENA
T2UFINT
ENA
T2CINT
ENA
T2PINT
ENA
—
—
—
—
—
CAP3INT
ENA
CAP2INT
ENA
CAP1INT
ENA
T1OFINT
FLAG
T1UFINT
FLAG
T1CINT
FLAG
—
—
—
—
—
0742Fh
EVAIFRA
T1PINT
FLAG
CMP3INT
FLAG
CMP2INT
FLAG
CMP1INT
FLAG
PDPINT
FLAG
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
07430h
07431h
EVAIFRB
EVAIFRC
T2OFINT
FLAG
T2UFINT
FLAG
T2CINT
FLAG
T2PINT
FLAG
—
—
—
—
—
CAP3INT
FLAG
CAP2INT
FLAG
CAP1INT
FLAG
07432h
to
Reserved
074FFh
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
99
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
GENERAL-PURPOSE (GP) TIMER CONFIGURATION CONTROL REGISTERS – EVB
—
T3TOADC(0)
D15
T4STAT
TCOMPOEB
D14
T3STAT
—
T4TOADC
T3TOADC(1)
07500h
07501h
07502h
07503h
07504h
07505h
07506h
07507h
07508h
GPTCONB
T3CNT
T3CMPR
T3PR
—
T4PIN
T3PIN
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D8
D0
D7
D6
D15
D14
D13
D5
D12
D11
D10
D2
D9
D8
D7
D6
D4
D3
D1
D0
D15
D14
D13
D5
D12
D11
D10
D2
D9
D8
D7
D6
D4
D3
D1
D0
FREE
TSWT3
D15
SOFT
TENABLE
D14
—
TMODE1
TCLKS0
D12
TMODE0
TCLD1
D11
TPS2
TPS1
TECMPR
D9
TPS0
SELT1PR
D8
T3CON
T4CNT
T4CMPR
T4PR
TCLKS3
D13
D5
TCLD0
D10
D7
D6
D4
D3
D2
D1
D0
D15
D14
D13
D5
D12
D11
D10
D9
D8
D7
D6
D4
D3
D2
D1
D0
D15
D14
D13
D5
D12
D11
D10
D9
D8
D7
D6
D4
D3
D2
D1
D0
FREE
TSWT1
SOFT
TENABLE
—
TMODE1
TCLKS0
TMODE0
TCLD1
TPS2
TCLD0
TPS1
TECMPR
TPS0
SELT3PR
T4CON
TCLKS1
07509h
to
Reserved
07510h
FULL AND SIMPLE COMPARE UNIT REGISTERS– EVB
CENABLE
—
CLD1
—
CLD0
—
SVENABLE
—
ACTRLD1
—
ACTRLD0
—
FCOMPOEB
—
—
—
07511h
07512h
07513h
07514h
07515h
07516h
07517h
COMCONB
ACTRB
Reserved
SVRDIR
D2
D1
D0
CMP12ACT1
CMP8ACT1
CMP12ACT0
CMP8ACT0
CMP11ACT1
CMP7ACT1
CMP11ACT0
CMP7ACT0
CMP10ACT1 CMP10ACT0
CMP9ACT1
CMP9ACT0
Reserved
—
—
—
—
DBT3
DBT2
DBT1
—
DBT0
—
DBTCONB
EDBT3
EDBT2
EDBT1
DBTPS2
DBTPS1
DBTPS0
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
CMPR4
CMPR5
CMPR6
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07518h
07519h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0751Ah
to
Reserved
0751Fh
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
100
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
CAPTURE UNIT REGISTERS– EVB
BIT 11
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
BIT 3
CAPRES
CAPQEPN
CAP6EN
CAP5EDGE
—
CAP6TSEL
CAP6EDGE
CAP45SEL
CAP6TOADC
07520h
07521h
07522h
CAPCONB
CAP4EDGE
—
Reserved
—
CAP6FIFO
CAP5FIFO
CAP4FIFO
CAPFIFOB
CAP4FIFO
CAP5FIFO
CAP6FIFO
—
D15
D7
—
D14
D6
—
D13
D5
—
D12
D4
—
—
D10
D2
—
—
D11
D3
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
07523h
07524h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07525h
07526h
07527h
Reserved
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D9
D1
D9
D1
D8
D0
D8
D0
D8
D0
CAP4FBOT
CAP5FBOT
CAP6FBOT
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
07528h
07529h
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
0752Ah
to
Reserved
0752Bh
EVENT MANAGER (EVB) INTERRUPT CONTROL REGISTERS
T3OFINT
ENA
T3UFINT
ENA
T3CINT
ENA
—
—
—
—
—
0752Ch
EVBIMRA
T3PINT
ENA
CMP3INT
ENA
CMP2INT
ENA
CMP1INT
ENA
PDPINTB
ENA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0752Dh
0752Eh
EVBIMRB
EVBIMRC
T4OFINT
ENA
T4UFINT
ENA
T4CINT
ENA
T4PINT
ENA
—
—
—
—
—
CAP6INT
ENA
CAP5INT
ENA
CAP4INT
ENA
T3OFINT
FLAG
T3UFINT
FLAG
T3CINT
FLAG
—
—
—
—
—
0752Fh
EVBIFRA
T3PINT
FLAG
CMP6INT
FLAG
CMP5INT
FLAG
CMP4INT
FLAG
PDPINTB
FLAG
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
07530h
07531h
EVBIFRB
EVBIFRC
T4OFINT
FLAG
T4UFINT
FLAG
T4CINT
FLAG
T4PINT
FLAG
—
—
—
—
—
CAP6INT
FLAG
CAP5INT
FLAG
CAP4INT
FLAG
07532h
to
Reserved
0753Fh
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
101
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
peripheral register description (continued)
Table 18. ’LF240x/’LC240x DSP Peripheral Register Description (Continued)
BIT 15
BIT 7
BIT 14
BIT 6
BIT 13
BIT 5
BIT 12
BIT 4
BIT 11
BIT 3
BIT 10
BIT 2
BIT 9
BIT 1
BIT 8
BIT 0
ADDR
REG
PROGRAM MEMORY SPACE – FLASH REGISTERS
—
—
—
—
—
—
—
—
—
—
—
—
0xx00h
0xx01h
PMPC
PWR DWN
KEY1
KEY0
EXEC
PRECND
Mode1
—
—
—
—
—
—
WSVER EN
FCM1
†
CTRL
PRECND
Mode0
ENG/R
Mode2
ENG/R
Mode1
ENG/R
Mode0
FCM3
FCM2
FCM0
0xx02h
0xx03h
0xx04h
0xx05h
WADDR
WDATA
TCR
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ENAB
0xx06h
SECT
SECT 4
ENABLE
SECT 3
ENABLE
SECT 2
ENABLE
SECT 1
ENABLE
—
—
—
—
I/O MEMORY SPACE
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0FF0Fh
0FFFFh
FCMR
WSGR
WAIT-STATE GENERATOR CONTROL REGISTER
—
—
—
—
—
BVIS.1
BVIS.0
ISWS.2
ISWS.1
ISWS.0
DSWS.2
DSWS.1
DSWS.0
PSWS.2
PSWS.1
PSWS.0
Indicates change with respect to the ’F243/’F241, ’C242 device register maps.
†
Register shown with bits set in register mode.
102
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
MECHANICAL DATA
PGE (S-PQFP-G144)
PLASTIC QUAD FLATPACK
108
73
109
72
0,27
0,17
M
0,08
0,50
0,13 NOM
144
37
1
36
Gage Plane
17,50 TYP
20,20
SQ
19,80
0,25
0,05 MIN
22,20
SQ
0°–ā7°
21,80
0,75
0,45
1,45
1,35
Seating Plane
0,08
1,60 MAX
4040147/C 11/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
Typical Thermal Resistance Characteristics
PARAMETER
DESCRIPTION
°C/W
Θ
Junction-to-ambient
32
8
JA
JC
Θ
Junction-to-case
103
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
MECHANICAL DATA
PZ (S-PQFP-G100)
PLASTIC QUAD FLATPACK
0,27
0,17
0,50
75
M
0,08
51
50
76
26
100
0,13 NOM
1
25
12,00 TYP
Gage Plane
14,20
SQ
13,80
0,25
16,20
SQ
0,05 MIN
0°–ā7°
15,80
1,45
1,35
0,75
0,45
Seating Plane
0,08
1,60 MAX
4040149/B 11/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
Typical Thermal Resistance Characteristics
PARAMETER
DESCRIPTION
°C/W
Θ
Junction-to-ambient
42
8
JA
JC
Θ
Junction-to-case
104
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
TMS320LF2407, TMS320LF2406, TMS320LF2402
TMS320LC2406, TMS320LC2404, TMS320LC2402
DSP CONTROLLERS
SPRS094C – APRIL 1999 – REVISED OCTOBER 1999
MECHANICAL DATA
PG (R-PQFP-G64)
PLASTIC QUAD FLATPACK
0,45
0,25
M
0,20
1,00
51
33
52
32
14,20 18,00
13,80 17,20
12,00 TYP
64
20
1
19
0,15 NOM
18,00 TYP
20,20
19,80
24,00
23,20
Gage Plane
0,25
0,10 MIN
2,70 TYP
0°–ā10°
1,10
0,70
Seating Plane
3,10 MAX
0,10
4040101/B 03/95
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Contact field sales office to determine if a tighter coplanarity requirement is available for this package.
Typical Thermal Resistance Characteristics
PARAMETER
DESCRIPTION
°C/W
Θ
Junction-to-ambient
35
JA
JC
Θ
Junction-to-case
11
105
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
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