MC9S12A256BCPV [MOTOROLA]
16-BIT, FLASH, 8MHz, MICROCONTROLLER, PQFP112, TQFP-112;型号: | MC9S12A256BCPV |
厂家: | MOTOROLA |
描述: | 16-BIT, FLASH, 8MHz, MICROCONTROLLER, PQFP112, TQFP-112 |
文件: | 总130页 (文件大小:1984K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
DOCUMENT NUMBER
9S12DT256DGV3/D
MC9S12DT256
Device User Guide
V03.03
Covers also
MC9S12A256, MC9S12DJ256
MC9S12DG256,
Original Release Date: 24 March 2003
Revised:26 July 2003
Motorola, Inc
Motorola reserves the right to make changes without further notice to any products herein to improve reliability, function or
design. Motorola does not assume any liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended,
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to
support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where
personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized
application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of
personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was
negligent regarding the design or manufacture of the part.
1
DOCUMENT NUMBER
9S12DT256DGV3/D
Revision History
Version Revision Effective
Author
Description of Changes
Number
Date
Date
24 March
2003
Initial version for Maskset L91N , based on MC9S12DP256B
V02.11.
V03.00
•
•
added new HCS12 core documentation
added cumulative program/erase cycle limitation
to Table A-12 for EEPROM
30 June
2003
V03.01
•
•
updated Table 0-2 Document References
removed cumulative program/erase cycle
limitation from Table A-12 for EEPROM
24 July
2003
V03.02
V03.03
•
•
added LRAE generic load and execute info to
section 15
26 July
2003
Added MC9S12DT256 in QFP 80 to Table 0-1
Motorola reserves the right to make changes without further notice to any products herein to improve reliability, function or
design. Motorola does not assume any liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended,
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to
support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where
personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized
application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of
personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was
negligent regarding the design or manufacture of the part.
2
MC9S12DT256 Device User Guide — 9S12DT256DGV3/D V03.03
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MC9S12DT256 Device User Guide — 9S12DT256DGV3/D V03.03
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MC9S12DT256 Device User Guide — V03.03
Table of Contents
Section 1 IntroductionMC9S12DT256
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Device Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Detailed Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Part ID Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Section 2 Signal Description
2.1
Device Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Signal Properties Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Detailed Signal Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
EXTAL, XTAL — Oscillator Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
RESET — External Reset Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
TEST — Test Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
VREGEN — Voltage Regulator Enable Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
XFC — PLL Loop Filter Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
BKGD / TAGHI / MODC — Background Debug, Tag High, and Mode Pin . . . . . . . .57
PAD15 / AN15 / ETRIG1 — Port AD Input Pin of ATD1 . . . . . . . . . . . . . . . . . . . . . .57
PAD[14:08] / AN[14:08] — Port AD Input Pins of ATD1 . . . . . . . . . . . . . . . . . . . . . .57
PAD7 / AN07 / ETRIG0 — Port AD Input Pin of ATD0 . . . . . . . . . . . . . . . . . . . . . . .58
2.2
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
2.3.8
2.3.9
2.3.10 PAD[06:00] / AN[06:00] — Port AD Input Pins of ATD0 . . . . . . . . . . . . . . . . . . . . . .58
2.3.11 PA[7:0] / ADDR[15:8] / DATA[15:8] — Port A I/O Pins . . . . . . . . . . . . . . . . . . . . . . .58
2.3.12 PB[7:0] / ADDR[7:0] / DATA[7:0] — Port B I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . .58
2.3.13 PE7 / NOACC / XCLKS — Port E I/O Pin 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
2.3.14 PE6 / MODB / IPIPE1 — Port E I/O Pin 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
2.3.15 PE5 / MODA / IPIPE0 — Port E I/O Pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
2.3.16 PE4 / ECLK — Port E I/O Pin 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
2.3.17 PE3 / LSTRB / TAGLO — Port E I/O Pin 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
2.3.18 PE2 / R/W — Port E I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.19 PE1 / IRQ — Port E Input Pin 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.20 PE0 / XIRQ — Port E Input Pin 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
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MC9S12DT256 Device User Guide — V03.03
2.3.21 PH7 / KWH7 / SS2 — Port H I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.22 PH6 / KWH6 / SCK2 — Port H I/O Pin 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.23 PH5 / KWH5 / MOSI2 — Port H I/O Pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.24 PH4 / KWH4 / MISO2 — Port H I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.25 PH3 / KWH3 / SS1 — Port H I/O Pin 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
2.3.26 PH2 / KWH2 / SCK1 — Port H I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.27 PH1 / KWH1 / MOSI1 — Port H I/O Pin 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.28 PH0 / KWH0 / MISO1 — Port H I/O Pin 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.29 PJ7 / KWJ7 / TXCAN4 / SCL — PORT J I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.30 PJ6 / KWJ6 / RXCAN4 / SDA — PORT J I/O Pin 6. . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.31 PJ[1:0] / KWJ[1:0] — Port J I/O Pins [1:0] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.32 PK7 / ECS / ROMONE — Port K I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
2.3.33 PK[5:0] / XADDR[19:14] — Port K I/O Pins [5:0] . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
2.3.34 PM7 / TXCAN4 — Port M I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
2.3.35 PM6 / RXCAN4 — Port M I/O Pin 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
2.3.36 PM5 / TXCAN0 / TXCAN4 / SCK0 — Port M I/O Pin 5 . . . . . . . . . . . . . . . . . . . . . . .63
2.3.37 PM4 / RXCAN0 / RXCAN4/ MOSI0 — Port M I/O Pin 4 . . . . . . . . . . . . . . . . . . . . . .63
2.3.38 PM3 / TXCAN1 / TXCAN0 / SS0 — Port M I/O Pin 3 . . . . . . . . . . . . . . . . . . . . . . . .63
2.3.39 PM2 / RXCAN1 / RXCAN0 / MISO0 — Port M I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . .63
2.3.40 PM1 / TXCAN0 / TXB — Port M I/O Pin 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.41 PM0 / RXCAN0 / RXB — Port M I/O Pin 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.42 PP7 / KWP7 / PWM7 / SCK2 — Port P I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.43 PP6 / KWP6 / PWM6 / SS2 — Port P I/O Pin 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.44 PP5 / KWP5 / PWM5 / MOSI2 — Port P I/O Pin 5. . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.45 PP4 / KWP4 / PWM4 / MISO2 — Port P I/O Pin 4. . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.46 PP3 / KWP3 / PWM3 / SS1 — Port P I/O Pin 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
2.3.47 PP2 / KWP2 / PWM2 / SCK1 — Port P I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.48 PP1 / KWP1 / PWM1 / MOSI1 — Port P I/O Pin 1. . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.49 PP0 / KWP0 / PWM0 / MISO1 — Port P I/O Pin 0. . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.50 PS7 / SS0 — Port S I/O Pin 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.51 PS6 / SCK0 — Port S I/O Pin 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.52 PS5 / MOSI0 — Port S I/O Pin 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.53 PS4 / MISO0 — Port S I/O Pin 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.54 PS3 / TXD1 — Port S I/O Pin 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
2.3.55 PS2 / RXD1 — Port S I/O Pin 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
2.3.56 PS1 / TXD0 — Port S I/O Pin 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
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MC9S12DT256 Device User Guide — V03.03
2.3.57 PS0 / RXD0 — Port S I/O Pin 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
2.3.58 PT[7:0] / IOC[7:0] — Port T I/O Pins [7:0] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
2.4
Power Supply Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
VDDX,VSSX — Power & Ground Pins for I/O Drivers. . . . . . . . . . . . . . . . . . . . . . . .66
VDDR, VSSR — Power & Ground Pins for I/O Drivers & for Internal Voltage Regulator
2.4.1
2.4.2
66
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
VDD1, VDD2, VSS1, VSS2 — Core Power Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . .67
VDDA, VSSA — Power Supply Pins for ATD and VREG . . . . . . . . . . . . . . . . . . . . .67
VRH, VRL — ATD Reference Voltage Input Pins . . . . . . . . . . . . . . . . . . . . . . . . . . .67
VDDPLL, VSSPLL — Power Supply Pins for PLL . . . . . . . . . . . . . . . . . . . . . . . . . . .67
VREGEN — On Chip Voltage Regulator Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Section 3 System Clock Description
3.1
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Section 4 Modes of Operation
4.1
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Chip Configuration Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Securing the Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Operation of the Secured Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Unsecuring the Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Pseudo Stop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Wait . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
4.2
4.3
4.3.1
4.3.2
4.3.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
Section 5 Resets and Interrupts
5.1
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Vector Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Effects of Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
I/O pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
5.2
5.2.1
5.3
5.3.1
5.3.2
Section 6 HCS12 Core Block Description
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MC9S12DT256 Device User Guide — V03.03
6.1
CPU12 Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
HCS12 Module Mapping Control (MMC) Block Description. . . . . . . . . . . . . . . . . . . . . .79
Device specific information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
HCS12 Multiplexed External Bus Interface (MEBI) Block Description . . . . . . . . . . . . . .79
Device specific information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
HCS12 Interrupt (INT) Block description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
HCS12 Background Debug (BDM) Block Description . . . . . . . . . . . . . . . . . . . . . . . . . .79
HCS12 Breakpoint (BKP) Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
6.2
6.2.1
6.3
6.3.1
6.4
6.5
6.6
Section 7 Clock and Reset Generator (CRG) Block Description
7.1
Device-specific information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
XCLKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
7.1.1
Section 8 Enhanced Capture Timer (ECT) Block Description
Section 9 Analog to Digital Converter (ATD) Block Description
Section 10 Inter-IC Bus (IIC) Block Description
Section 11 Serial Communications Interface (SCI) Block Description
Section 12 Serial Peripheral Interface (SPI) Block Description
Section 13 J1850 (BDLC) Block Description
Section 14 Pulse Width Modulator (PWM) Block Description
Section 15 Flash EEPROM 256K Block Description
Section 16 EEPROM 4K Block Description
Section 17 RAM Block Description
Section 18 MSCAN Block Description
Section 19 Port Integration Module (PIM) Block Description
Section 20 Voltage Regulator (VREG) Block Description
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MC9S12DT256 Device User Guide — V03.03
Appendix A Electrical Characteristics
A.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
A.1.1
A.1.2
A.1.3
A.1.4
A.1.5
A.1.6
A.1.7
A.1.8
A.1.9
Parameter Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Current Injection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
ESD Protection and Latch-up Immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Power Dissipation and Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
I/O Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
A.1.10 Supply Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
A.2 ATD Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
A.2.1
A.2.2
A.2.3
ATD Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Factors influencing accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
ATD accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
A.3 NVM, Flash and EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
A.3.1
A.3.2
NVM timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
NVM Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
A.4 Voltage Regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
A.5 Reset, Oscillator and PLL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
A.5.1
A.5.2
A.5.3
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Phase Locked Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
A.6 MSCAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
A.7 SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
A.7.1
A.7.2
Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
A.8 External Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
A.8.1 General Muxed Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Appendix B Package Information
B.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
B.2 112-pin LQFP package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
B.3 80-pin QFP package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
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MC9S12DT256 Device User Guide — V03.03
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MC9S12DT256 Device User Guide — V03.03
List of Figures
Figure 0-1 Order Partnumber Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Figure 1-1 MC9S12DT256 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 1-2 MC9S12DT256 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Figure 2-1 Pin Assignments in 112-pin LQFP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Figure 2-2 Pin Assignments in 80-pin QFP for MC9S12DJ256 . . . . . . . . . . . . . . . . . . . . . .53
Figure 2-3 PLL Loop Filter Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Figure 2-4 Colpitts Oscillator Connections (PE7=1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Figure 2-5 Pierce Oscillator Connections (PE7=0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Figure 2-6 External Clock Connections (PE7=0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Figure 3-1 Clock Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Figure 20-1 Recommended PCB Layout for 112LQFP Colpitts Oscillator . . . . . . . . . . . . . . .84
Figure 20-2 Recommended PCB Layout for 80QFP Colpitts Oscillator . . . . . . . . . . . . . . . . .85
Figure 20-3 Recommended PCB Layout for 112LQFP Pierce Oscillator . . . . . . . . . . . . . . . .86
Figure 20-4 Recommended PCB Layout for 80QFP Pierce Oscillator . . . . . . . . . . . . . . . . . .87
Figure A-1 ATD Accuracy Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Figure A-2 Basic PLL functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure A-3 Jitter Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure A-4 Maximum bus clock jitter approximation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Figure A-5 SPI Master Timing (CPHA=0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Figure A-6 SPI Master Timing (CPHA=1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Figure A-7 SPI Slave Timing (CPHA=0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Figure A-8 SPI Slave Timing (CPHA=1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Figure A-9 General External Bus Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure B-1 112-pin LQFP mechanical dimensions (case no. 987) . . . . . . . . . . . . . . . . . . 126
Figure B-2 80-pin QFP Mechanical Dimensions (case no. 841B). . . . . . . . . . . . . . . . . . . 127
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MC9S12DT256 Device User Guide — V03.03
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MC9S12DT256 Device User Guide — V03.03
List of Tables
Table 0-1 Derivative Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Table 0-2 Document References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Table 0-3 Specification Change Summary for Maskset L91N . . . . . . . . . . . . . . . . . . . . . . . .17
Table 1-1 Device Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Table 1-2 Detailed MSCAN Foreground Receive and Transmit Buffer Layout. . . . . . . . . . .43
Table 1-3 Assigned Part ID Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Table 1-4 Memory size registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Table 2-1 Signal Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Table 2-2 MC9S12DP256 Power and Ground Connection Summary . . . . . . . . . . . . . . . . . .67
Table 4-1 Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Table 4-2 Clock Selection Based on PE7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Table 4-3 Voltage Regulator VREGEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Table 5-1 Interrupt Vector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Table A-1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Table A-2 ESD and Latch-up Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Table A-3 ESD and Latch-Up Protection Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Table A-4 Operating Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Table A-5 Thermal Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Table A-6 5V I/O Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Table A-7 Supply Current Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Table A-8 ATD Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Table A-9 ATD Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Table A-10 ATD Conversion Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Table A-11 NVM Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Table A-12 NVM Reliability Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Table A-13 Voltage Regulator Recommended Load Capacitances . . . . . . . . . . . . . . . . . . .107
Table A-14 Startup Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
Table A-15 Oscillator Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
Table A-16 PLL Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Table A-17 MSCAN Wake-up Pulse Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Table A-18 Measurement Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Table A-19 SPI Master Mode Timing Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Table A-20 SPI Slave Mode Timing Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
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MC9S12DT256 Device User Guide — V03.03
Table A-21 Expanded Bus Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
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MC9S12DT256 Device User Guide — V03.03
Derivative Differences and Document References
Derivative Differences
Table 0-1 shows the availability of peripheral modules on the various derivatives. For details about the
compatibility within the MC9S12D-Family refer also to engineering bulletin EB386.
Table 0-1 Derivative Differences
Generic
MC9S12A256
MC9S12DT256
MC9S12DJ256
MC9S12DG256
device
# of CANs
CAN0
0
3
2
2
—
✓
✓
✓
CAN1
—
✓
—
—
CAN4
—
✓
—
✓
✓
—
J1850/BDLC
Package
Mask set
Temp Options
—
✓
112 LQFP/80 QFP
L91N
112 LQFP/80 QFP
112 LQFP/80 QFP
L91N
112 LQFP/80 QFP
L91N
L91N
C
M, V, C
M, V, C
M, V, C
Package
Code
PV/FU
PV/FU
PV/FU
PV/FU
An errata exists
contact Sales
Office
An errata exists
contact Sales
Office
An errata exists
contact Sales
Office
An errata exists
contact Sales
Office
Notes
The following figure provides an ordering number example for the MC9S12H-Family devices.
Temperature Options
MC9S12 DT256 C FU
Package Option
Temperature Option
Device Title
C = -40˚C to 85˚C
V = -40˚C to 105˚C
M = -40˚C to 125˚C
Package Options
FU = 80QFP
PV = 112 LQFP
Controller Family
Figure 0-1 Order Partnumber Example
15
MC9S12DT256 Device User Guide — V03.03
The following items should be considered when using a derivative (Table 0-1):
•
•
•
Registers
– Do not write or read CAN0 registers (after reset: address range $0140 - $017F), if using a
derivative without CAN0.
– Do not write or read CAN1registers (after reset: address range $0180 - $01BF), if using a
derivative without CAN1.
– Do not write or read CAN4 registers (after reset: address range $0280 - $02BF), if using a
derivative without CAN4.
– Do not write or read BDLC registers (after reset: address range $00E8 - $00EF), if using a
derivative without BDLC.
Interrupts
– Fill the four CAN0 interrupt vectors ($FFB0 - $FFB7) according to your coding policies for
unused interrupts, if using a derivative without CAN0.
– Fill the four CAN1 interrupt vectors ($FFA8 - $FFAF) according to your coding policies for
unused interrupts, if using a derivative without CAN1.
– Fill the four CAN4 interrupt vectors ($FF90 - $FF97) according to your coding policies for
unused interrupts, if using a derivative without CAN4.
– Fill the BDLC interrupt vector ($FFC2, $FFC3) according to your coding policies for unused
interrupts, if using a derivative without BDLC.
Ports
– The CAN0 pin functionality (TXCAN0, RXCAN0) is not available on port PJ7, PJ6, PM5,
PM4, PM3, PM2, PM1 and PM0, if using a derivative without CAN0.
– The CAN1 pin functionality (TXCAN1, RXCAN1) is not available on port PM3 and PM2, if
using a derivative without CAN1.
– The CAN4 pin functionality (TXCAN4, RXCAN4) is not available on port PJ7, PJ6, PM5,
PM7, PM6, PM5 and PM4, if using a derivative without CAN0.
– The BDLC pin functionality (TXB, RXB) is not available on port PM1 and PM0, if using a
derivative without BDLC.
– Do not write MODRR1 and MODRR0 bits of Module Routing Register (PIM_9DP256 Block
Guide), if using a derivative without CAN0.
– Do not write MODRR3 and MODRR2 bits of Module Routing Register (PIM_9DP256 Block
Guide), if using a derivative without CAN4.
Document References
16
MC9S12DT256 Device User Guide — V03.03
The Device Guide provides information about the MC9S12DT256 device made up of standard HCS12
blocks and the HCS12 processor core.
This document is part of the customer documentation. A complete set of device manuals also includes the
HCS12 Core User Guide and all the individual Block Guides of the implemented modules. In a effort to
reduce redundancy all module specific information is located only in the respective Block Guide. If
applicable, special implementation details of the module are given in the block description sections of this
document.
See Table 0-2 for names and versions of the referenced documents throughout the Device User Guide.
Table 0-2 Document References
User Guide
Version
V04
V03
V04
V01
V04
V01
V04
V01
V02
V02
V02
V03
V01
V03
V02
V01
V02
V01
V03
V02
Document Order Number
CPU12RM/AD
CPU12 Reference Manual
HCS12 Multiplexed External Bus Interface (MEBI) Block Guide
HCS12 Module Mapping Control (MMC) Block Guide
HCS12 Interrupt (INT) Block Guide
S12MEBIV3/D
S12MMCV4/D
S12INTV1/D
HCS12 Background Debug (BDM) Block Guide
S12BDMV4/D
HCS12 Breakpoint (BKP) Block Guide
S12BKPV1/D
Clock and Reset Generator (CRG) Block User Guide
Enhanced Capture Timer (ECT_16B8C) Block User Guide
Analog to Digital Converter 10 Bit 8 Channels (ATD_10B8C) Block User Guide
Inter IC Bus (IIC) Block User Guide
S12CRGV4/D
S12ECT16B8CV1/D
S12ATD10B8CV2/D
S12IICV2/D
Asynchronous Serial Interface (SCI) Block User Guide
Serial Peripheral Interface (SPI) Block User Guide
Pulse Width Modulator 8 Bit 8 Channel (PWM_8B8C) Block User Guide
256 K Byte Flash (FTS256K) Block User Guide
S12SCIV2/D
S12SPIV3/D
S12PWM8B8CV1/D
S12FTS256KV3/D
S12EETS4KV2/D
S12BDLCV1/D
S12MSCANV2/D
S12VREGV1/D
S12PIM9DP256V3/D
S12OSCV2/D
4K Byte EEPROM (EETS4K) Block User Guide
Byte Level Data Link Controller -J1850 (BDLC) Block User Guide
Motorola Scalable CAN (MSCAN) Block User Guide
Voltage Regulator (VREG) Block User Guide
Port Integration Module (PIM_9DP256) Block User Guide
Oscillator (OSC) Block Guide
Table 0-3 shows the Specification Change Summary for Maskset L91N.
Table 0-3 Specification Change Summary for Maskset L91N
Block
Spec Change
MCU_9DT256
removed CAN2 and CAN3
The Background Debug Module includes an Acknowledge Protocol (two
additional hardware commands ACK_ENABLE/ACK_DISABLE)
HCS12 V1.5
The state of PK7/ROMCTL is latched into ROMON Bit during RESET into
Emulation Mode or Normal Expanded Mode
HCS12 V1.5
CRG
Maskset includes an additional Pierce Oscillator
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MC9S12DT256 Device User Guide — V03.03
Table 0-3 Specification Change Summary for Maskset L91N
Block
Spec Change
EETS4K/FTS256K
PIM_9DP256
Reliability Specification for Non Volatile Memories
CAN0 can be routed to PORTJ
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MC9S12DT256 Device User Guide — V03.03
User Guide End Sheet
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MC9S12DT256 Device User Guide — V03.03
FINAL PAGE OF
130
PAGES
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MC9S12DT256 Device User Guide — V03.03
Section 1 IntroductionMC9S12DT256
1.1 Overview
The MC9S12DT256 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip
peripherals including a 16-bit central processing unit (HCS12 CPU), 256K bytes of Flash EEPROM, 12K
bytes of RAM, 4K bytes of EEPROM, two asynchronous serial communications interfaces (SCI), three
serial peripheral interfaces (SPI), an 8-channel IC/OC enhanced capture timer, two 8-channel, 10-bit
analog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), a digital Byte Data Link
Controller (BDLC), 29 discrete digital I/O channels (Port A, Port B, Port K and Port E), 20 discrete digital
I/O lines with interrupt and wakeup capability, three CAN 2.0 A, B software compatible modules
(MSCAN12), and an Inter-IC Bus. The MC9S12DT256 has full 16-bit data paths throughout. However,
the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for
lower cost systems. The inclusion of a PLL circuit allows power consumption and performance to be
adjusted to suit operational requirements.
1.2 Features
•
HCS12 Core
– 16-bit HCS12 CPU
i. Upward compatible with M68HC11 instruction set
ii. Interrupt stacking and programmer’s model identical to M68HC11
iii.Instruction queue
iv. Enhanced indexed addressing
– MEBI (Multiplexed External Bus Interface)
– MMC (Module Mapping Control)
– INT (Interrupt control)
– BKP (Breakpoints)
– BDM (Background Debug Mode)
CRG
•
– Low current Colpitts or Pierce oscillator
– PLL
– COP watchdog
– Real time interrupt
– Clock Monitor
•
8-bit and 4-bit ports with interrupt functionality
– Digital filtering
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MC9S12DT256 Device User Guide — V03.03
– Programmable rising or falling edge trigger
•
Memory
– 256K Flash EEPROM
– 4K byte EEPROM
– 12K byte RAM
•
•
Two 8-channel Analog-to-Digital Converters
– 10-bit resolution
– External conversion trigger capability
Three 1M bit per second, CAN 2.0 A, B software compatible modules
– Five receive and three transmit buffers
– Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit or 8 x 8 bit
– Four separate interrupt channels for Rx, Tx, error and wake-up
– Low-pass filter wake-up function
– Loop-back for self test operation
•
•
Enhanced Capture Timer
– 16-bit main counter with 7-bit prescaler
– 8 programmable input capture or output compare channels
– Four 8-bit or two 16-bit pulse accumulators
8 PWM channels
– Programmable period and duty cycle
– 8-bit 8-channel or 16-bit 4-channel
– Separate control for each pulse width and duty cycle
– Center-aligned or left-aligned outputs
– Programmable clock select logic with a wide range of frequencies
– Fast emergency shutdown input
– Usable as interrupt inputs
•
•
Serial interfaces
– Two asynchronous Serial Communications Interfaces (SCI)
– Three Synchronous Serial Peripheral Interface (SPI)
Byte Data Link Controller (BDLC)
– SAE J1850 Class B Data Communications Network Interface Compatible and ISO Compatible
for Low-Speed (<125 Kbps) Serial Data Communications in Automotive Applications
•
Inter-IC Bus (IIC)
20
MC9S12DT256 Device User Guide — V03.03
– Compatible with I2C Bus standard
– Multi-master operation
– Software programmable for one of 256 different serial clock frequencies
112-Pin LQFP package
•
– I/O lines with 5V input and drive capability
– 5V A/D converter inputs
– Operation at 50MHz equivalent to 25MHz Bus Speed
– Development support
– Single-wire background debug™ mode (BDM)
– On-chip hardware breakpoints
1.3 Modes of Operation
User modes
•
Normal and Emulation Operating Modes
– Normal Single-Chip Mode
– Normal Expanded Wide Mode
– Normal Expanded Narrow Mode
– Emulation Expanded Wide Mode
– Emulation Expanded Narrow Mode
Special Operating Modes
•
– Special Single-Chip Mode with active Background Debug Mode
– Special Test Mode (Motorola use only)
– Special Peripheral Mode (Motorola use only)
Low power modes
•
•
•
Stop Mode
Pseudo Stop Mode
Wait Mode
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MC9S12DT256 Device User Guide — V03.03
1.4 Block Diagram
Figure 1-1 shows a block diagram of the MC9S12DT256 device.
22
MC9S12DT256 Device User Guide — V03.03
Figure 1-1 MC9S12DT256 Block Diagram
VRH
VRH
VRL
VDDA
VSSA
VRH
VRL
VDDA
VSSA
256K Byte Flash EEPROM
12K Byte RAM
ATD0
ATD1
VRL
VDDA
VSSA
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
PAD00
PAD01
PAD02
PAD03
PAD04
PAD05
PAD06
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
PAD08
PAD09
PAD10
PAD11
PAD12
PAD13
PAD14
4K Byte EEPROM
VDDR
VSSR
VREGEN
VDD1,2
VSS1,2
Voltage Regulator
PAD07
PAD15
PIX0
PK0 XADDR14
PK1 XADDR15
Single-wire Background
BKGD
PIX1
PIX2
PIX3
PIX4
PIX5
ECS
CPU12
Debug Module
PPAGE
PK2
XADDR16
XFC
VDDPLL
VSSPLL
EXTAL
XTAL
PK3 XADDR17
PK4 XADDR18
PK5 XADDR19
Clock and
Reset
Generation
Module
PLL
Periodic Interrupt
COP Watchdog
Clock Monitor
Breakpoints
PK7
ECS
IOC0
IOC1
IOC2
IOC3
IOC4
IOC5
IOC6
IOC7
PT0
PT1
PT2
PT3
PT4
PT5
RESET
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
XIRQ
IRQ
R/W
LSTRB
ECLK
MODA
MODB
Enhanced Capture
Timer
System
Integration
Module
(SIM)
PT6
PT7
NOACC/XCLKS
RXD
TXD
RXD
TXD
PS0
PS1
PS2
PS3
PS4
PS5
PS6
PS7
SCI0
TEST
SCI1
SPI0
MISO
MOSI
SCK
SS
Multiplexed Address/Data Bus
DDRA
PTA
DDRB
PTB
BDLC
RXB
TXB
RXCAN
TXCAN
RXCAN
TXCAN
(J1850)
PM0
PM1
PM2
PM3
PM4
PM5
PM6
PM7
CAN0
CAN1
Multiplexed
Wide Bus
RXCAN
TXCAN
CAN4
IIC
KWJ0
KWJ1
KWJ6
KWJ7
PJ0
PJ1
PJ6
PJ7
Multiplexed
Narrow Bus
SDA
SCL
Internal Logic 2.5V
VDD1,2
VSS1,2
I/O Driver 5V
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
KWP0
KWP1
KWP2
KWP3
KWP4
KWP5
KWP6
KWP7
PP0
PP1
PP2
PP3
PP4
PP5
VDDX
VSSX
PWM
A/D Converter 5V &
Voltage Regulator Reference
PLL 2.5V
VDDPLL
VSSPLL
VDDA
VSSA
PP6
PP7
MISO
MOSI
SCK
SS
MISO
MOSI
SCK
SS
KWH0
KWH1
KWH2
KWH3
KWH4
KWH5
KWH6
KWH7
PH0
PH1
PH2
PH3
PH4
PH5
Voltage Regulator 5V & I/O
SPI1
SPI2
VDDR
VSSR
PH6
PH7
23
MC9S12DT256 Device User Guide — V03.03
1.5 Device Memory Map
Table 1-1 and Figure 1-2 show the device memory map of the MC9S12DT256 after reset. Note that after
reset the bottom 1k of the EEPROM ($0000 - $03FF) are hidden by the register space.
Table 1-1 Device Memory Map
Size
(Bytes)
Address
Module
$0000 - $0017
$0018 - $0019
$001A - $001B
$001C - $001F
$0020 - $0027
$0028 - $002F
$0030 - $0033
$0034 - $003F
$0040 - $007F
$0080 - $009F
$00A0 - $00C7
$00C8 - $00CF
$00D0 - $00D7
$00D8 - $00DF
$00E0 - $00E7
$00E8 - $00EF
$00F0 - $00F7
$00F8 - $00FF
$0100- $010F
$0110 - $011B
$011C - $011F
$0120 - $013F
$0140 - $017F
$0180 - $01BF
24
2
CORE (Ports A, B, E, Modes, Inits, Test)
Reserved
2
Device ID register (PARTID)
4
CORE (MEMSIZ, IRQ, HPRIO)
Reserved
8
8
CORE (Background Debug Mode)
CORE (PPAGE, Port K)
4
12
64
32
40
8
Clock and Reset Generator (PLL, RTI, COP)
Enhanced Capture Timer 16-bit 8 channels
Analog to Digital Converter 10-bit 8 channels (ATD0)
Pulse Width Modulator 8-bit 8 channels (PWM)
Serial Communications Interface (SCI0)
Serial Communications Interface (SCI1)
Serial Peripheral Interface (SPI0)
Inter IC Bus
8
8
8
8
Byte Data Link Controller (BDLC)
Serial Peripheral Interface (SPI1)
Serial Peripheral Interface (SPI2)
Flash Control Register
8
8
16
12
4
EEPROM Control Register
Reserved
32
64
Analog to Digital Converter 10-bit 8 channels (ATD1)
Motorola Scalable Can (CAN0)
Motorola Scalable Can (CAN1)
64
64
64
64
64
$01C0 - $01FF Reserved
$0200 - $023F
$0240 - $027F Port Integration Module (PIM)
Reserved
$0280 - $02BF
$02C0 - $03FF
$0000 - $0FFF
Motorola Scalable Can (CAN4)
Reserved
320
4096
EEPROM array
24
MC9S12DT256 Device User Guide — V03.03
Table 1-1 Device Memory Map
Size
(Bytes)
Address
Module
$1000 - $3FFF
12288
16384
16384
RAM array
Fixed Flash EEPROM array
$4000 - $7FFF
$8000 - $BFFF
incl. 0.5K, 1K, 2K or 4K Protected Sector at start
Flash EEPROM Page Window
Fixed Flash EEPROM array
incl. 0.5K, 1K, 2K or 4K Protected Sector at end
$C000 - $FFFF
16384
and 256 bytes of Vector Space at $FF80 - $FFFF
25
MC9S12DT256 Device User Guide — V03.03
Figure 1-2 MC9S12DT256 Memory Map
$0000
$0000
$0400
REGISTERS
(Mappable to any 2k Block
within the first 32K)
$03FF
$0000
4K Bytes EEPROM
$1000
$4000
(Mappable to any 4K Block)
$0FFF
$1000
12K Bytes RAM
(Mappable to any 16K
and alignable to top or
bottom)
$3FFF
$4000
16K Fixed Flash
Page $3E = 62
(This is dependant on the
state of the ROMHM bit)
$7FFF
$8000
$8000
16K Page Window
16 x 16K Flash EEPROM
pages
EXTERN
$BFFF
$C000
$C000
16K Fixed Flash
Page $3F = 63
$FFFF
$FF00
BDM
(if active)
$FF00
$FFFF
$FFFF
VECTORS
VECTORS
VECTORS
SPECIAL
SINGLE CHIP
EXPANDED*
NORMAL
SINGLE CHIP
* Assuming that a ‘0’ was driven onto port K bit 7 during MCU
is reset into normal expanded wide or narrow mode.
26
MC9S12DT256 Device User Guide — V03.03
1.6 Detailed Register Map
The following tables show the detailed register map of the MC9S12DT256.
$0000 - $000F MEBI map 1 of 3 (Core User Guide)
Address
$0000
Name
Bit 7
Bit 7
Bit 6
6
Bit 5
5
Bit 4
4
Bit 3
3
Bit 2
2
Bit 1
1
Bit 0
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PORTA
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
Bit 7
Bit 7
6
6
5
5
4
4
3
3
2
2
1
1
Bit 0
Bit 0
PORTB
DDRA
Bit 7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit 0
0
DDRB
Reserved
Reserved
Reserved
Reserved
PORTE
DDRE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit 1
0
Bit 0
0
Bit 7
Bit 7
6
5
5
4
4
3
3
2
6
0
Bit 2
0
0
NOACCE
MODC
PUPKE
PIPOE
NECLK
0
LSTRE
RDWE
0
PEAR
MODB
0
MODA
0
IVIS
0
EMK
EME
MODE
0
0
0
0
PUPEE
PUPBE PUPAE
PUCR
0
0
0
0
0
0
0
0
0
RDPK
0
RDPE
0
RDPB
0
RDPA
RDRIV
ESTR
0
EBICTL
Reserved
0
0
0
$0010 - $0014
MMC map 1 of 4 (Core User Guide)
Address
$0010
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
0
Bit 1
0
Bit 0
RAMHAL
0
Read:
Write:
Read:
Write:
RAM15 RAM14 RAM13 RAM12 RAM11
0
INITRM
0
0
$0011
REG14
REG13
REG12
REG11
INITRG
27
MC9S12DT256 Device User Guide — V03.03
$0010 - $0014
MMC map 1 of 4 (Core User Guide)
Address
$0012
Name
Bit 7
EE15
0
Bit 6
EE14
0
Bit 5
EE13
0
Bit 4
EE12
0
Bit 3
Bit 2
0
Bit 1
0
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
EE11
EEON
INITEE
$0013
$0014
EXSTR1 EXSTR0 ROMHM ROMON
MISC
0
0
0
0
0
0
0
0
Reserved
$0015 - $0016
INT map 1 of 2 (Core User Guide)
Address
$0015
Name
ITCR
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
WRINT
ADR3
ADR2
ADR1
ADR0
$0016
INTE
INTC
INTA
INT8
INT6
INT4
INT2
INT0
ITEST
$0017 - $0017
MMC map 2 of 4 (Core User Guide)
Address
$0017
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Reserved
$0018 - $001B
Miscellaneous Peripherals (Device User Guide,Table 1-3)
Address
$0018
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Reserved
0
0
0
0
0
0
0
0
$0019
$001A
$001B
Reserved
PARTIDH
PARTIDL
ID15
ID7
ID14
ID6
ID13
ID5
ID12
ID4
ID11
ID3
ID10
ID2
ID9
ID1
ID8
ID0
$001C - $001D
MMC map 3 of 4 (Core and Device User Guide,Table 1-4)
Address
$001C
Name
Bit 7
Read: reg_sw0
Write:
Bit 6
0
Bit 5
Bit 4
Bit 3
0
Bit 2
Bit 1
Bit 0
eep_sw1 eep_sw0
ram_sw2 ram_sw1 ram_sw0
MEMSIZ0
Read: rom_sw1 rom_sw0
Write:
0
0
0
0
pag_sw1 pag_sw0
$001D
MEMSIZ1
28
MC9S12DT256 Device User Guide — V03.03
$001E - $001E
MEBI map 2 of 3 (Core User Guide)
Address
$001E
Name
Bit 7
Bit 6
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
IRQE
IRQEN
INTCR
$001F - $001F
INT map 2 of 2 (Core User Guide)
Address
$001F
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Read:
Write:
PSEL7
PSEL6
PSEL5
PSEL4
PSEL3
PSEL2
PSEL1
HPRIO
$0020 - $0027
Reserved
Address
$0020
Name
Bit 7
0
Bit 6
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read
Write:
0
0
0
0
0
0
0
0
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
$0021
$0022
$0023
$0024
$0025
$0026
$0027
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
$0028 - $002F
BKP (Core User Guide)
Address
$0028
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
BKEN
BKFULL BKBDM BKTAG
BKPCT0
$0029
$002A
$002B
$002C
BK0MBH BK0MBL BK1MBH BK1MBL BK0RWE BK0RW BK1RWE BK1RW
BKPCT1
BKP0X
BKP0H
BKP0L
0
0
BK0V5
BK0V4
BK0V3
BK0V2
BK0V1
BK0V0
Bit 8
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 0
29
MC9S12DT256 Device User Guide — V03.03
$0028 - $002F
BKP (Core User Guide)
Address
$002D
Name
Bit 7
0
Bit 6
0
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
BK1V5
BK1V4
BK1V3
BK1V2
BK1V1
BK1V0
BKP1X
$002E
$002F
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 8
Bit 0
BKP1H
BKP1L
$0030 - $0031
MMC map 4 of 4 (Core User Guide)
Address
$0030
Name
Bit 7
0
Bit 6
0
Bit 5
PIX5
0
Bit 4
PIX4
0
Bit 3
PIX3
0
Bit 2
PIX2
0
Bit 1
PIX1
0
Bit 0
PIX0
0
Read:
Write:
Read:
Write:
PPAGE
0
0
$0031
Reserved
$0032 - $0033
MEBI map 3 of 3 (Core User Guide)
Address
$0032
Name
Bit 7
Bit 7
Bit 6
6
Bit 5
5
Bit 4
4
Bit 3
3
Bit 2
2
Bit 1
1
Bit 0
Bit 0
Read:
Write:
Read:
Write:
PORTK
$0033
Bit 7
6
5
4
3
2
1
Bit 0
DDRK
$0034 - $003F
CRG (Clock and Reset Generator)
Address
$0034
Name
SYNR
Bit 7
0
Bit 6
0
Bit 5
SYN5
0
Bit 4
SYN4
0
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
SYN3
SYN2
SYN1
SYN0
0
0
$0035
$0036
$0037
$0038
$0039
$003A
$003B
$003C
REFDV3 REFDV2 REFDV1 REFDV0
REFDV
CTFLG
Read: TOUT7
TOUT6
TOUT5
TOUT4
TOUT3
TOUT2
TOUT1
TOUT0
TEST ONLY Write:
Read:
CRGFLG
0
0
LOCK
0
TRACK
0
SCM
0
RTIF
RTIE
PROF
0
LOCKIF
LOCKIE
SCMIF
SCMIE
Write:
Read:
CRGINT
Write:
Read:
CLKSEL
PLLSEL
PSTP
PLLON
RTR6
SYSWAI ROAWAI PLLWAI
0
CWAI
PRE
RTIWAI COPWAI
Write:
Read:
PLLCTL
CME
0
AUTO
ACQ
PCE
RTR1
CR1
SCME
RTR0
CR0
Write:
Read:
RTICTL
RTR5
0
RTR4
0
RTR3
0
RTR2
CR2
Write:
Read:
COPCTL
WCOP
RSBCK
Write:
30
MC9S12DT256 Device User Guide — V03.03
$0034 - $003F
CRG (Clock and Reset Generator)
Address
$003D
Name
FORBYP
Bit 7
Bit 6
Bit 5
0
Bit 4
Bit 3
0
Bit 2
0
Bit 1
FCM
Bit 0
0
Read:
RTIBYP COPBYP
PLLBYP
TCTL4
TEST ONLY Write:
CTCTL
Read: TCTL7
TCTL6
TCTL5
TCLT3
TCTL2
TCTL1
TCTL0
$003E
$003F
TEST ONLY Write:
Read:
ARMCOP
0
Bit 7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit 0
Write:
$0040 - $007F
ECT (Enhanced Capture Timer 16 Bit 8 Channels)
Address
$0040
Name
TIOS
Bit 7
IOS7
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
IOS6
IOS5
IOS4
IOS3
IOS2
IOS1
IOS0
0
0
0
0
0
0
0
$0041
$0042
$0043
$0044
$0045
$0046
$0047
$0048
$0049
$004A
$004B
$004C
$004D
$004E
$004F
$0050
$0051
$0052
CFORC
OC7M
Write: FOC7
Read:
FOC6
FOC5
FOC4
FOC3
FOC2
FOC1
FOC0
OC7M7 OC7M6 OC7M5 OC7M4 OC7M3 OC7M2 OC7M1 OC7M0
OC7D7 OC7D6 OC7D5 OC7D4 OC7D3 OC7D2 OC7D1 OC7D0
Write:
Read:
Write:
OC7D
Read: Bit 15
Write:
14
6
13
5
12
4
11
3
10
2
9
1
0
Bit 8
Bit 0
0
TCNT (hi)
TCNT (lo)
TSCR1
TTOV
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Bit 7
0
0
TEN
TOV7
OM7
OM3
TSWAI
TOV6
OL7
TSFRZ
TOV5
OM6
TFFCA
TOV4
OL6
TOV3
OM5
OM1
TOV2
OL5
TOV1
OM4
OM0
TOV0
OL4
TCTL1
TCTL2
TCTL3
TCTL4
TIE
OL3
OM2
OL2
OL1
OL0
EDG7B EDG7A EDG6B EDG6A EDG5B EDG5A EDG4B EDG4A
EDG3B EDG3A EDG2B EDG2A EDG1B EDG1A EDG0B EDG0A
C7I
TOI
C6I
0
C5I
0
C4I
0
C3I
C2I
C1I
C0I
TCRE
PR2
PR1
PR0
TSCR2
TFLG1
TFLG2
TC0 (hi)
TC0 (lo)
TC1 (hi)
C7F
C6F
0
C5F
0
C4F
0
C3F
0
C2F
0
C1F
0
C0F
0
TOF
Bit 15
Bit 7
Bit 15
14
6
13
5
12
4
11
3
10
2
9
1
9
Bit 8
Bit 0
Bit 8
14
13
12
11
10
31
MC9S12DT256 Device User Guide — V03.03
$0040 - $007F
ECT (Enhanced Capture Timer 16 Bit 8 Channels)
Address
$0053
Name
Bit 7
Bit 7
Bit 6
6
Bit 5
5
Bit 4
4
Bit 3
3
Bit 2
2
Bit 1
1
Bit 0
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
TC1 (lo)
$0054
$0055
$0056
$0057
$0058
$0059
$005A
$005B
$005C
$005D
$005E
$005F
$0060
$0061
$0062
$0063
$0064
$0065
$0066
$0067
$0068
$0069
$006A
$006B
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
PAI
TC2 (hi)
TC2 (lo)
TC3 (hi)
TC3 (lo)
TC4 (hi)
TC4 (lo)
TC5 (hi)
TC5 (lo)
TC6 (hi)
TC6 (lo)
TC7 (hi)
TC7 (lo)
PACTL
1
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 15
14
6
13
5
12
4
11
3
10
2
9
Bit 7
0
1
PAEN
0
PAMOD PEDGE
CLK1
0
CLK0
0
PAOVI
0
0
0
PAOVF
PAIF
Bit 0
Bit 0
Bit 0
Bit 0
PAFLG
Bit 7
Bit 7
Bit 7
Bit 7
MCZI
6
6
6
6
5
5
5
5
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
PACN3 (hi)
PACN2 (lo)
PACN1 (hi)
PACN0 (lo)
MCCTL
MCFLG
ICPAR
0
ICLAT
0
0
MODMC RDMCL
MCEN
POLF2
MCPR1 MCPR0
FLMC
POLF3
0
0
0
0
0
0
POLF1
POLF0
MCZF
0
0
0
PA3EN
0
PA2EN
0
PA1EN
DLY1
PA0EN
DLY0
0
DLYCT
NOVW7 NOVW6 NOVW5 NOVW4 NOVW3 NOVW2 NOVW1 NOVW0
SH37 SH26 SH15 SH04 TFMOD PACMX BUFEN LATQ
ICOVW
ICSYS
32
MC9S12DT256 Device User Guide — V03.03
$0040 - $007F
ECT (Enhanced Capture Timer 16 Bit 8 Channels)
Address
$006C
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Reserved
TIMTST
0
0
0
0
0
0
$006D
$006E
$006F
$0070
$0071
$0072
$0073
$0074
$0075
$0076
$0077
$0078
$0079
$007A
$007B
$007C
$007D
$007E
$007F
TCBYP
Test Only
Reserved
Reserved
PBCTL
0
0
0
5
5
5
5
0
0
4
4
4
4
0
0
3
3
3
3
0
0
2
2
2
2
0
PBEN
0
PBOVI
0
0
PBOVF
1
PBFLG
Bit 7
Bit 7
Bit 7
Bit 7
6
6
6
6
Bit 0
Bit 0
Bit 0
Bit 0
PA3H
1
1
1
PA2H
PA1H
PA0H
Bit 15
Bit 7
14
13
12
11
10
9
Bit 8
MCCNT (hi)
MCCNT (lo)
TC0H (hi)
TC0H (lo)
TC1H (hi)
TC1H (lo)
TC2H (hi)
TC2H (lo)
TC3H (hi)
TC3H (lo)
6
5
4
3
2
1
9
Bit 0
Bit 8
Read: Bit 15
Write:
14
13
12
11
10
Read:
Write:
Bit 7
6
14
6
5
13
5
4
12
4
3
11
3
2
10
2
1
9
1
9
1
9
1
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Bit 8
Bit 0
Read: Bit 15
Write:
Read:
Write:
Bit 7
Read: Bit 15
Write:
14
6
13
5
12
4
11
3
10
2
Read:
Write:
Bit 7
Read: Bit 15
Write:
14
6
13
5
12
4
11
3
10
2
Read:
Write:
Bit 7
$0080 - $009F
ATD0 (Analog to Digital Converter 10 Bit 8 Channel)
Address
$0080
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
ATD0CTL0
0
0
0
0
0
0
0
0
$0081
ATD0CTL1
33
MC9S12DT256 Device User Guide — V03.03
$0080 - $009F
ATD0 (Analog to Digital Converter 10 Bit 8 Channel)
Address
$0082
Name
Bit 7
ADPU
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ASCIF
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
AFFC
AWAI ETRIGLE ETRIGP ETRIG
ASCIE
ATD0CTL2
$0083
$0084
$0085
$0086
$0087
$0088
$0089
$008A
$008B
$008C
$008D
$008E
$008F
$0090
$0091
$0092
$0093
$0094
$0095
$0096
$0097
$0098
$0099
$009A
S8C
S4C
S2C
PRS4
MULT
S1C
FIFO
FRZ1
PRS1
FRZ0
PRS0
ATD0CTL3
ATD0CTL4
ATD0CTL5
ATD0STAT0
Reserved
SRES8
DJM
SMP1
SMP0
SCAN
PRS3
0
PRS2
DSGN
0
CC
CB
CA
0
CC2
CC1
CC0
SCF
0
ETORF
0
FIFOR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ATD0TEST0
ATD0TEST1
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
SC
0
Read: CCF7
Write:
CCF6
0
CCF5
0
CCF4
0
CCF3
0
CCF2
0
CCF1
0
CCF0
0
ATD0STAT1
Reserved
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
0
Bit 7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit 0
0
ATD0DIEN
Reserved
Bit7
6
5
13
0
4
12
0
3
11
0
2
10
0
1
9
0
9
0
9
0
9
0
9
0
9
BIT 0
Bit8
0
PORTAD0
ATD0DR0H
ATD0DR0L
ATD0DR1H
ATD0DR1L
ATD0DR2H
ATD0DR2L
ATD0DR3H
ATD0DR3L
ATD0DR4H
ATD0DR4L
ATD0DR5H
Read: Bit15
Write:
14
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
12
11
10
Bit8
34
MC9S12DT256 Device User Guide — V03.03
$0080 - $009F
ATD0 (Analog to Digital Converter 10 Bit 8 Channel)
Address
$009B
Name
Bit 7
Bit7
Bit 6
Bit6
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
ATD0DR5L
Read: Bit15
Write:
14
Bit6
14
13
0
12
0
11
0
10
0
9
0
9
0
Bit8
0
$009C
$009D
$009E
$009F
ATD0DR6H
ATD0DR6L
ATD0DR7H
ATD0DR7L
Read:
Write:
Bit7
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
$00A0 - $00C7
PWM (Pulse Width Modulator 8 Bit 8 Channel)
Address
$00A0
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PWME7 PWME6 PWME5 PWME4 PWME3 PWME2 PWME1 PWME0
PWME
$00A1
$00A2
$00A3
$00A4
$00A5
$00A6
$00A7
$00A8
$00A9
$00AA
$00AB
$00AC
$00AD
$00AE
$00AF
$00B0
PPOL7
PPOL6
PCLK6
PCKB2
CAE6
PPOL5
PCLK5
PCKB1
CAE5
PPOL4
PCLK4
PCKB0
CAE4
PPOL3
PPOL2
PCLK2
PCKA2
CAE2
PPOL1
PCLK1
PCKA1
PPOL0
PCLK0
PCKA0
PWMPOL
PWMCLK
PWMPRCLK
PWMCAE
PWMCTL
PCLK7
0
PCLK3
0
CAE7
CAE3
CAE1
0
CAE0
0
CON67 CON45 CON23 CON01
PSWAI
0
PFRZ
0
PWMTST
Test Only
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
2
PWMPRSC
PWMSCLA
PWMSCLB
PWMSCNTA
PWMSCNTB
PWMCNT0
PWMCNT1
PWMCNT2
PWMCNT3
PWMCNT4
Bit 7
6
5
4
1
Bit 0
Bit 7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit 0
0
0
0
0
0
0
0
0
0
Bit 7
0
Bit 7
0
Bit 7
0
Bit 7
0
6
0
6
0
6
0
6
0
6
0
5
0
5
0
5
0
5
0
5
0
4
0
4
0
4
0
4
0
4
0
3
0
3
0
3
0
3
0
3
0
2
0
2
0
2
0
2
0
2
0
1
0
1
0
1
0
1
0
1
0
Bit 0
0
Bit 0
0
Bit 0
0
Bit 0
0
Bit 7
0
Bit 0
0
35
MC9S12DT256 Device User Guide — V03.03
$00A0 - $00C7
PWM (Pulse Width Modulator 8 Bit 8 Channel)
Address
$00B1
Name
Bit 7
Bit 7
0
Bit 7
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 0
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
6
0
6
0
6
0
5
0
5
0
5
0
4
0
4
0
4
0
3
0
3
0
3
0
2
0
2
0
2
0
1
0
1
0
1
0
PWMCNT5
$00B2
$00B3
$00B4
$00B5
$00B6
$00B7
$00B8
$00B9
$00BA
$00BB
$00BC
$00BD
$00BE
$00BF
$00C0
$00C1
$00C2
$00C3
$00C4
$00C5
$00C6
$00C7
PWMCNT6
PWMCNT7
PWMPER0
PWMPER1
PWMPER2
PWMPER3
PWMPER4
PWMPER5
PWMPER6
PWMPER7
PWMDTY0
PWMDTY1
PWMDTY2
PWMDTY3
PWMDTY4
PWMDTY5
PWMDTY6
PWMDTY7
PWMSDN
Reserved
Bit 7
0
Bit 0
0
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
3
0
PWMRS
TRT
PWM7IN PWM7E
PWMIF PWMIE
PWMLVL
0
PWM7IN
0
L
NA
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Reserved
Reserved
36
MC9S12DT256 Device User Guide — V03.03
$00C8 - $00CF
SCI0 (Asynchronous Serial Interface)
Address
$00C8
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
SBR12
SBR11
SBR10
SBR9
SBR8
SCI0BDH
$00C9
$00CA
$00CB
$00CC
$00CD
$00CE
$00CF
SBR7
SBR6
SBR5
SBR4
M
SBR3
SBR2
ILT
SBR1
PE
SBR0
PT
SCI0BDL
SCI0CR1
SCI0CR2
SCI0SR1
SCI0SR2
SCI0DRH
SCI0DRL
LOOPS SCISWAI RSRC
WAKE
TIE
TCIE
TC
RIE
ILIE
TE
RE
NF
RWU
FE
SBK
PF
Read: TDRE
Write:
RDRF
IDLE
OR
Read:
Write:
Read:
Write:
Read:
Write:
0
0
0
0
0
0
0
0
RAF
0
BRK13
0
TXDIR
0
R8
T8
R7
T7
R6
T6
R5
T5
R4
T4
R3
T3
R2
T2
R1
T1
R0
T0
$00D0 - $00D7
SCI1 (Asynchronous Serial Interface)
Address
$00D0
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
SBR12
SBR11
SBR10
SBR9
SBR8
SCI1BDH
$00D1
$00D2
$00D3
$00D4
$00D5
$00D6
$00D7
SBR7
SBR6
SBR5
SBR4
M
SBR3
SBR2
ILT
SBR1
PE
SBR0
PT
SCI1BDL
SCI1CR1
SCI1CR2
SCI1SR1
SCI1SR2
SCI1DRH
SCI1DRL
LOOPS SCISWAI RSRC
WAKE
TIE
TCIE
TC
RIE
ILIE
TE
RE
NF
RWU
FE
SBK
PF
Read: TDRE
Write:
RDRF
IDLE
OR
Read:
Write:
Read:
Write:
Read:
Write:
0
0
0
0
0
0
0
0
RAF
0
BRK13
0
TXDIR
0
R8
T8
R7
T7
R6
T6
R5
T5
R4
T4
R3
T3
R2
T2
R1
T1
R0
T0
$00D8 - $00DF
SPI0 (Serial Peripheral Interface)
Address
$00D8
Name
Bit 7
SPIE
0
Bit 6
SPE
0
Bit 5
SPTIE
0
Bit 4
Bit 3
Bit 2
CPHA
0
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
MSTR
CPOL
SSOE
LSBFE
SPI0CR1
$00D9
$00DA
$00DB
MODFEN BIDIROE
SPISWAI SPC0
SPI0CR2
SPI0BR
SPI0SR
0
0
SPPR2
0
SPPR1
SPTEF
SPPR0
SPR2
0
SPR1
0
SPR0
0
SPIF
MODF
0
37
MC9S12DT256 Device User Guide — V03.03
$00D8 - $00DF
SPI0 (Serial Peripheral Interface)
Address
$00DC
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Reserved
$00DD
$00DE
$00DF
Bit7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit0
0
SPI0DR
Reserved
Reserved
0
0
0
0
0
0
0
0
$00E0 - $00E7
IIC (Inter IC Bus)
Address
$00E0
Name
IBAD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
ADR7
ADR6
ADR5
ADR4
ADR3
ADR2
ADR1
$00E1
$00E2
$00E3
$00E4
$00E5
$00E6
$00E7
IBC7
IBC6
IBC5
IBC4
TX/RX
IBAL
IBC3
IBC2
IBC1
0
IBC0
IBFD
IBCR
0
IBEN
TCF
IBIE
MS/SL
IBB
TXAK
0
IBSWAI
RXAK
RSTA
SRW
IAAS
IBIF
IBSR
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D1
0
D 0
0
IBDR
Reserved
Reserved
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
$00E8 - $00EF
BDLC (Bytelevel Data Link Controller J1850)
Address
$00E8
Name
Bit 7
IMSG
0
Bit 6
CLKS
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
IE
Bit 0
WCM
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
DLCBCR1
I3
I2
I1
I0
0
$00E9
$00EA
$00EB
$00EC
$00ED
$00EE
$00EF
DLCBSVR
DLCBCR2
DLCBDR
SMRST DLOOP RX4XE
NBFS
TEOD
D3
TSIFR
D2
TMIFR1 TMIFR0
D7
0
D6
D5
0
D4
0
D1
D0
RXPOL
0
BO3
BO2
BO1
BO0
DLCBARD
DLCBRSR
DLCSCR
0
0
0
R5
0
R4
R3
0
R2
0
R1
0
R0
0
0
0
BDLCE
0
0
0
0
0
IDLE
DLCBSTAT
38
MC9S12DT256 Device User Guide — V03.03
$00F0 - $00F7
SPI1 (Serial Peripheral Interface)
Address
$00F0
Name
Bit 7
SPIE
0
Bit 6
SPE
0
Bit 5
SPTIE
0
Bit 4
Bit 3
Bit 2
CPHA
0
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
MSTR
CPOL
SSOE
LSBFE
SPI1CR1
$00F1
$00F2
$00F3
$00F4
$00F5
$00F6
$00F7
MODFEN BIDIROE
SPISWAI SPC0
SPI1CR2
SPI1BR
0
SPIF
0
0
SPPR2
0
SPPR1
SPTEF
SPPR0
SPR2
0
SPR1
0
SPR0
0
MODF
0
0
0
SPI1SR
0
0
0
0
0
Reserved
SPI1DR
Reserved
Reserved
Bit7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit0
0
0
0
0
0
0
0
0
0
$00F8 - $00FF
SPI2 (Serial Peripheral Interface)
Address
$00F8
Name
Bit 7
SPIE
0
Bit 6
SPE
0
Bit 5
SPTIE
0
Bit 4
Bit 3
Bit 2
CPHA
0
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
MSTR
CPOL
SSOE
LSBFE
SPI2CR1
$00F9
$00FA
$00FB
$00FC
$00FD
$00FE
$00FF
MODFEN BIDIROE
SPISWAI SPC0
SPI2CR2
SPI2BR
0
SPIF
0
0
SPPR2
0
SPPR1
SPTEF
SPPR0
SPR2
0
SPR1
0
SPR0
0
MODF
0
0
0
SPI2SR
0
0
0
0
0
Reserved
SPI2DR
Reserved
Reserved
Bit7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit0
0
0
0
0
0
0
0
0
0
$0100 - $010F
Flash Control Register (fts256k)
Address
$0100
Name
Bit 7
Read: FDIVLD
Write:
Bit 6
Bit 5
FDIV5
NV5
Bit 4
FDIV4
NV4
Bit 3
FDIV3
NV3
Bit 2
FDIV2
NV2
Bit 1
FDIV1
SEC1
Bit 0
FDIV0
SEC0
PRDIV8
FCLKDIV
Read: KEYEN1 KEYEN0
$0101
$0102
$0103
FSEC
FTSTMOD
FCNFG
Write:
Read:
Write:
Read:
Write:
0
0
0
0
0
0
0
0
WRALL
0
0
CBEIE
CCIE
KEYACC
BKSEL1 BKSEL0
39
MC9S12DT256 Device User Guide — V03.03
$0100 - $010F
Flash Control Register (fts256k)
Address
$0104
Name
Bit 7
Bit 6
NV6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
FPLS1
0
Bit 0
FPLS0
0
Read:
Write:
Read:
Write:
Read:
Write:
FPOPEN
FPHDIS FPHS1
FPHS0 FPLDIS
FPROT
CCIF
0
$0105
$0106
$0107
$0108
$0109
$010A
$010B
$010C
$010D
$010E
$010F
CBEIF
0
PVIOL ACCERR
0
BLANK
FSTAT
FCMD
0
0
0
CMDB6 CMDB5
CMDB2
CMDB0
0
Reserved for Read:
Factory Test Write:
0
0
0
0
0
0
0
Read:
FADDRHI
Bit 14
6
13
5
12
4
11
3
10
2
9
1
9
Bit 8
Bit 0
Bit 8
Write:
Read:
FADDRLO
Bit 7
Write:
Read:
FDATAHI
Bit 15
14
13
12
11
10
Write:
Read:
FDATALO
Bit 7
0
6
0
5
0
4
0
3
0
2
0
1
0
Bit 0
0
Write:
Read:
Reserved
Write:
Read:
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Write:
Read:
Reserved
Write:
Read:
Reserved
Write:
$0110 - $011B
EEPROM Control Register (eets4k)
Address
$0110
Name
Bit 7
Read: EDIVLD
Write:
Bit 6
PRDIV8
0
Bit 5
EDIV5
0
Bit 4
EDIV4
0
Bit 3
EDIV3
0
Bit 2
EDIV2
0
Bit 1
EDIV1
0
Bit 0
EDIV0
0
ECLKDIV
Read:
Write:
0
$0111
$0112
$0113
$0114
$0115
$0116
$0117
$0118
Reserved
Reserved for Read:
Factory Test Write:
0
0
0
0
0
0
0
0
0
0
0
0
Read:
ECNFG
0
0
CBEIE
CCIE
NV6
Write:
Read:
NV5
NV4
EPOPEN
EPDIS
0
EP2
EP1
0
EP0
0
EPROT
Write:
Read:
ESTAT
CCIF
CBEIF
0
PVIOL ACCERR
0
BLANK
Write:
Read:
ECMD
0
0
0
0
CMDB6 CMDB5
CMDB2
0
CMDB0
0
Write:
Reserved for Read:
Factory Test Write:
0
0
0
0
0
0
0
Read:
EADDRHI
0
0
10
9
Bit 8
Write:
40
MC9S12DT256 Device User Guide — V03.03
$0110 - $011B
EEPROM Control Register (eets4k)
Address
$0119
Name
Bit 7
Bit 7
Bit 6
6
Bit 5
5
Bit 4
4
Bit 3
3
Bit 2
2
Bit 1
1
Bit 0
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
EADDRLO
$011A
$011B
Bit 15
Bit 7
14
6
13
5
12
4
11
3
10
2
9
1
Bit 8
Bit 0
EDATAHI
EDATALO
$011C - $011F
Reserved for RAM Control Register
Address
$011C
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
$011D
$011E
$011F
Reserved
Reserved
Reserved
$0120 - $013F
ATD1 (Analog to Digital Converter 10 Bit 8 Channel)
Address
$0120
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
ATD1CTL0
0
0
0
0
0
0
0
0
$0121
$0122
$0123
$0124
$0125
$0126
$0127
$0128
$0129
$012A
$012B
$012C
ATD1CTL1
ATD1CTL2
ATD1CTL3
ATD1CTL4
ATD1CTL5
ATD1STAT0
Reserved
ASCIF
ADPU
0
AFFC
S8C
AWAI ETRIGLE ETRIGP ETRIG
ASCIE
FRZ1
PRS1
S4C
S2C
S1C
FIFO
FRZ0
PRS0
SRES8
SMP1
SMP0
PRS4
PRS3
0
PRS2
DJM
SCF
DSGN
0
SCAN
MULT
CC
CB
CA
ETORF
FIFOR
0
CC2
CC1
CC0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ATD1TEST0
ATD1TEST1
Reserved
0
0
0
0
0
0
0
0
0
0
0
0
SC
0
Read: CCF7
Write:
CCF6
0
CCF5
0
CCF4
0
CCF3
0
CCF2
0
CCF1
0
CCF0
0
ATD1STAT1
Reserved
Read:
Write:
0
41
MC9S12DT256 Device User Guide — V03.03
$0120 - $013F
ATD1 (Analog to Digital Converter 10 Bit 8 Channel)
Address
$012D
Name
Bit 7
Bit 7
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 0
0
Read:
Write:
Read:
Write:
Read:
Write:
6
0
5
0
4
0
3
0
2
0
1
0
ATD1DIEN
$012E
$012F
$0130
$0131
$0132
$0133
$0134
$0135
$0136
$0137
$0138
$0139
$013A
$013B
$013C
$013D
$013E
$013F
Reserved
PORTAD1
ATD1DR0H
ATD1DR0L
ATD1DR1H
ATD1DR1L
ATD1DR2H
ATD1DR2L
ATD1DR3H
ATD1DR3L
ATD1DR4H
ATD1DR4L
ATD1DR5H
ATD1DR5L
ATD1DR6H
ATD1DR6L
ATD1DR7H
ATD1DR7L
Bit7
6
5
13
0
4
12
0
3
11
0
2
10
0
1
9
0
9
0
9
0
9
0
9
0
9
0
9
0
9
0
BIT 0
Bit8
0
Read: Bit15
Write:
14
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
14
Read: Bit15
Write:
13
0
12
0
11
0
10
0
Bit8
0
Read:
Write:
Bit7
Bit6
$0140 - $017F
CAN0 (Motorola Scalable CAN - MSCAN)
Address
$0140
Name
Bit 7
Bit 6
RXACT
Bit 5
Bit 4
SYNCH
Bit 3
TIME
0
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
RXFRM
CSWAI
WUPE
SLPRQ INITRQ
CAN0CTL0
SLPAK
INITAK
$0141
$0142
CANE CLKSRC LOOPB LISTEN
SJW1 SJW0 BRP5 BRP4
WUPM
BRP2
CAN0CTL1
CAN0BTR0
BRP3
BRP1
BRP0
42
MC9S12DT256 Device User Guide — V03.03
$0140 - $017F
CAN0 (Motorola Scalable CAN - MSCAN)
Address
$0143
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
SAMP TSEG22 TSEG21 TSEG20 TSEG13 TSEG12 TSEG11 TSEG10
RSTAT1 RSTAT0 TSTAT1 TSTAT0
CAN0BTR1
$0144
$0145
$0146
$0147
$0148
$0149
$014A
$014B
$014C
$014D
$014E
$014F
WUPIF
CSCIF
OVRIF
RXF
RXFIE
TXE0
CAN0RFLG
CAN0RIER
CAN0TFLG
CAN0TIER
CAN0TARQ
CAN0TAAK
CAN0TBSEL
CAN0IDAC
Reserved
WUPIE
0
CSCIE RSTATE1 RSTATE0 TSTATE1 TSTATE0 OVRIE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TXE2
TXE1
0
0
0
0
0
0
0
TXEIE2 TXEIE1 TXEIE0
ABTRQ2 ABTRQ1 ABTRQ0
ABTAK2 ABTAK1 ABTAK0
TX2
TX1
TX0
IDHIT2
IDHIT1
IDHIT0
IDAM1
0
IDAM0
0
0
0
0
0
0
0
0
0
Reserved
Read: RXERR7 RXERR6 RXERR5 RXERR4 RXERR3 RXERR2 RXERR1 RXERR0
CAN0RXERR
CAN0TXERR
Write:
Read: TXERR7 TXERR6 TXERR5 TXERR4 TXERR3 TXERR2 TXERR1 TXERR0
Write:
CAN0IDAR0 - Read:
CAN0IDAR3 Write:
CAN0IDMR0 - Read:
CAN0IDMR3 Write:
CAN0IDAR4 - Read:
CAN0IDAR7 Write:
CAN0IDMR4 - Read:
CAN0IDMR7 Write:
$0150 -
$0153
AC7
AM7
AC7
AM7
AC6
AM6
AC6
AM6
AC5
AM5
AC5
AM5
AC4
AM4
AC4
AM4
AC3
AM3
AC3
AM3
AC2
AM2
AC2
AM2
AC1
AM1
AC1
AM1
AC0
AM0
AC0
AM0
$0154 -
$0157
$0158 -
$015B
$015C -
$015F
Read:
CAN0RXFG
Write:
FOREGROUND RECEIVE BUFFER see Table 1-2
$0160 -
$016F
Read:
CAN0TXFG
Write:
$0170 -
$017F
FOREGROUND TRANSMIT BUFFER see Table 1-2
Table 1-2 Detailed MSCAN Foreground Receive and Transmit Buffer Layout
Address
$xxx0
Name
Bit 7
ID28
ID10
Bit 6
ID27
ID9
Bit 5
ID26
ID8
Bit 4
ID25
ID7
Bit 3
ID24
ID6
Bit 2
ID23
ID5
Bit 1
ID22
ID4
Bit 0
ID21
ID3
Extended ID Read:
Standard ID Read:
CANxRIDR0 Write:
Extended ID Read:
Standard ID Read:
CANxRIDR1 Write:
ID20
ID2
ID19
ID1
ID18
ID0
SRR=1
RTR
IDE=1
IDE=0
ID17
ID16
ID15
$xxx1
43
MC9S12DT256 Device User Guide — V03.03
Table 1-2 Detailed MSCAN Foreground Receive and Transmit Buffer Layout
Address
$xxx2
Name
Bit 7
ID14
Bit 6
ID13
Bit 5
ID12
Bit 4
ID11
Bit 3
ID10
Bit 2
ID9
Bit 1
ID8
Bit 0
ID7
Extended ID Read:
Standard ID Read:
CANxRIDR2 Write:
Extended ID Read:
Standard ID Read:
CANxRIDR3 Write:
ID6
ID5
ID4
ID3
ID2
ID1
ID0
RTR
$xxx3
Read:
Write:
Read:
Write:
Read:
Write:
Read: TSR15
Write:
Read: TSR7
Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$xxx4- CANxRDSR0 -
$xxxB
CANxRDSR7
DLC3
DLC2
DLC1
DLC0
$xxxC
CANRxDLR
$xxxD
$xxxE
$xxxF
Reserved
TSR14
TSR6
TSR13
TSR5
TSR12
TSR4
TSR11
TSR3
TSR10
TSR2
TSR9
TSR1
TSR8
TSR0
CANxRTSRH
CANxRTSRL
Extended ID Read:
CANxTIDR0 Write:
Standard ID Read:
Write:
Extended ID Read:
CANxTIDR1 Write:
Standard ID Read:
Write:
Extended ID Read:
CANxTIDR2 Write:
Standard ID Read:
Write:
Extended ID Read:
CANxTIDR3 Write:
Standard ID Read:
Write:
ID28
ID10
ID20
ID2
ID27
ID9
ID26
ID8
ID25
ID7
ID24
ID6
ID23
ID5
ID22
ID4
ID21
ID3
$xx10
$xx10
$xx12
ID19
ID1
ID18
ID0
SRR=1
RTR
IDE=1
IDE=0
ID10
ID17
ID16
ID15
ID14
ID13
ID12
ID11
ID9
ID1
ID8
ID0
ID7
ID6
DB7
ID5
ID4
ID3
ID2
RTR
$xx13
Read:
Write:
Read:
Write:
Read:
Write:
Read: TSR15
Write:
Read: TSR7
Write:
$xx14- CANxTDSR0 -
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$xx1B
CANxTDSR7
$xx1C
CANxTDLR
DLC3
DLC2
DLC1
DLC0
$xx1D
$xx1E
$xx1F
CONxTTBPR
CANxTTSRH
CANxTTSRL
PRIO7
PRIO6
TSR14
PRIO5
TSR13
PRIO4
TSR12
PRIO3
TSR11
PRIO2
TSR10
PRIO1
TSR9
PRIO0
TSR8
TSR6
TSR5
TSR4
TSR3
TSR2
TSR1
TSR0
44
MC9S12DT256 Device User Guide — V03.03
$0180 - $01BF
CAN1 (Motorola Scalable CAN - MSCAN)
Address
$0180
Name
Bit 7
Bit 6
RXACT
Bit 5
Bit 4
SYNCH
Bit 3
TIME
0
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
RXFRM
CSWAI
WUPE
SLPRQ INITRQ
CAN1CTL0
SLPAK
BRP1
INITAK
BRP0
$0181
$0182
$0183
$0184
$0185
$0186
$0187
$0188
$0189
$018A
$018B
$018C
$018D
$018E
$018F
$0190
$0191
$0192
$0193
$0194
$0195
$0196
$0197
$0198
CANE CLKSRC LOOPB LISTEN
SJW1 SJW0 BRP5 BRP4
WUPM
BRP2
CAN1CTL1
CAN1BTR0
CAN1BTR1
CAN1RFLG
CAN1RIER
CAN1TFLG
CAN1TIER
CAN1TARQ
CAN1TAAK
CAN1TBSEL
CAN1IDAC
Reserved
BRP3
SAMP TSEG22 TSEG21 TSEG20 TSEG13 TSEG12 TSEG11 TSEG10
RSTAT1 RSTAT0 TSTAT1 TSTAT0
WUPIF
CSCIF
OVRIF
RXF
RXFIE
TXE0
WUPIE
0
CSCIE RSTATE1 RSTATE0 TSTATE1 TSTATE0 OVRIE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TXE2
TXE1
0
0
0
0
0
0
0
TXEIE2 TXEIE1 TXEIE0
ABTRQ2 ABTRQ1 ABTRQ0
ABTAK2 ABTAK1 ABTAK0
TX2
TX1
TX0
IDHIT2
IDHIT1
IDHIT0
IDAM1
0
IDAM0
0
0
0
0
0
0
0
0
0
Reserved
Read: RXERR7 RXERR6 RXERR5 RXERR4 RXERR3 RXERR2 RXERR1 RXERR0
CAN1RXERR
CAN1TXERR
CAN1IDAR0
CAN1IDAR1
CAN1IDAR2
CAN1IDAR3
CAN1IDMR0
CAN1IDMR1
CAN1IDMR2
CAN1IDMR3
CAN1IDAR4
Write:
Read: TXERR7 TXERR6 TXERR5 TXERR4 TXERR3 TXERR2 TXERR1 TXERR0
Write:
Read:
AC7
AC7
AC7
AC7
AM7
AM7
AM7
AM7
AC7
AC6
AC6
AC6
AC6
AM6
AM6
AM6
AM6
AC6
AC5
AC5
AC5
AC5
AM5
AM5
AM5
AM5
AC5
AC4
AC4
AC4
AC4
AM4
AM4
AM4
AM4
AC4
AC3
AC3
AC3
AC3
AM3
AM3
AM3
AM3
AC3
AC2
AC2
AC2
AC2
AM2
AM2
AM2
AM2
AC2
AC1
AC1
AC1
AC1
AM1
AM1
AM1
AM1
AC1
AC0
AC0
AC0
AC0
AM0
AM0
AM0
AM0
AC0
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
45
MC9S12DT256 Device User Guide — V03.03
$0180 - $01BF
CAN1 (Motorola Scalable CAN - MSCAN)
Address
$0199
Name
Bit 7
AC7
Bit 6
AC6
Bit 5
AC5
Bit 4
AC4
Bit 3
AC3
Bit 2
AC2
Bit 1
AC1
Bit 0
AC0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
CAN1IDAR5
$019A
$019B
$019C
$019D
$019E
$019F
AC7
AC7
AM7
AM7
AM7
AM7
AC6
AC6
AM6
AM6
AM6
AM6
AC5
AC5
AM5
AM5
AM5
AM5
AC4
AC4
AM4
AM4
AM4
AM4
AC3
AC3
AM3
AM3
AM3
AM3
AC2
AC2
AM2
AM2
AM2
AM2
AC1
AC1
AM1
AM1
AM1
AM1
AC0
AC0
AM0
AM0
AM0
AM0
CAN1IDAR6
CAN1IDAR7
CAN1IDMR4
CAN1IDMR5
CAN1IDMR6
CAN1IDMR7
CAN1RXFG
CAN1TXFG
FOREGROUND RECEIVE BUFFER see Table 1-2
$01A0 -
$01AF
$01B0 -
$01BF
FOREGROUND TRANSMIT BUFFER see Table 1-2
$0240 - $027F
PIM (Port Integration Module PIM_9DP256)
Address
$0240
Name
PTT
Bit 7
Bit 6
PTT6
PTIT6
Bit 5
PTT5
PTIT5
Bit 4
PTT4
PTIT4
Bit 3
PTT3
PTIT3
Bit 2
PTT2
PTIT2
Bit 1
PTT1
PTIT1
Bit 0
PTT0
PTIT0
Read:
Write:
PTT7
Read: PTIT7
Write:
$0241
$0242
$0243
$0244
$0245
$0246
$0247
$0248
$0249
$024A
$024B
$024C
PTIT
DDRT
RDRT
PERT
Read:
DDRT7 DDRT7 DDRT5 DDRT4 DDRT3 DDRT2 DDRT1 DDRT0
RDRT7 RDRT6 RDRT5 RDRT4 RDRT3 RDRT2 RDRT1 RDRT0
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PERT7
PERT6
PERT5
PERT4
PERT3
PERT2
PERT1
PERT0
PPST7
0
PPST6
0
PPST5
0
PPST4
0
PPST3
0
PPST2
0
PPST1
0
PPST0
0
PPST
Reserved
Reserved
PTS
0
0
0
0
0
0
0
0
PTS7
PTS6
PTS5
PTS4
PTS3
PTS2
PTS1
PTS0
Read: PTIS7
Write:
PTIS6
PTIS5
PTIS4
PTIS3
PTIS2
PTIS1
PTIS0
PTIS
Read:
DDRS7 DDRS7 DDRS5 DDRS4 DDRS3 DDRS2 DDRS1 DDRS0
RDRS7 RDRS6 RDRS5 RDRS4 RDRS3 RDRS2 RDRS1 RDRS0
DDRS
RDRS
PERS
Write:
Read:
Write:
Read:
Write:
PERS7
PERS6
PERS5
PERS4
PERS3
PERS2
PERS1
PERS0
46
MC9S12DT256 Device User Guide — V03.03
$0240 - $027F
PIM (Port Integration Module PIM_9DP256)
Address
$024D
Name
PPSS
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PPSS7
PPSS6
PPSS5
PPSS4
PPSS3
PPSS2
PPSS1
PPSS0
$024E
$024F
$0250
$0251
$0252
$0253
$0254
$0255
$0256
$0257
$0258
$0259
$025A
$025B
$025C
$025D
$025E
$025F
$0260
$0261
$0262
$0263
$0264
$0265
WOMS7 WOMS6 WOMS5 WOMS4 WOMS3 WOMS2 WOMS1 WOMS0
WOMS
Reserved
PTM
0
0
0
0
0
0
0
0
PTM7
PTM6
PTM5
PTM4
PTM3
PTM2
PTM1
PTM0
Read: PTIM7
Write:
PTIM6
PTIM5
PTIM4
PTIM3
PTIM2
PTIM1
PTIM0
PTIM
Read:
DDRM7 DDRM7 DDRM5 DDRM4 DDRM3 DDRM2 DDRM1 DDRM0
RDRM7 RDRM6 RDRM5 RDRM4 RDRM3 RDRM2 RDRM1 RDRM0
PERM7 PERM6 PERM5 PERM4 PERM3 PERM2 PERM1 PERM0
PPSM7 PPSM6 PPSM5 PPSM4 PPSM3 PPSM2 PPSM1 PPSM0
WOMM7 WOMM6 WOMM5 WOMM4 WOMM3 WOMM2 WOMM1 WOMM0
DDRM
RDRM
PERM
PPSM
WOMM
MODRR
PTP
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
0
MODRR6 MODRR5 MODRR4 MODRR3 MODRR2 MODRR1 MODRR0
PTP7
PTP6
PTP5
PTP4
PTP3
PTP2
PTP1
PTP0
Read: PTIP7
Write:
PTIP6
PTIP5
PTIP4
PTIP3
PTIP2
PTIP1
PTIP0
PTIP
Read:
DDRP7 DDRP7 DDRP5 DDRP4 DDRP3 DDRP2 DDRP1 DDRP0
RDRP7 RDRP6 RDRP5 RDRP4 RDRP3 RDRP2 RDRP1 RDRP0
DDRP
RDRP
PERP
PPSP
PIEP
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PERP7
PPSP7
PIEP7
PIFP7
PTH7
PERP6
PPSP6
PIEP6
PIFP6
PERP5
PPSP5
PIEP5
PIFP5
PERP4
PPSP4
PIEP4
PIFP4
PERP3
PPSP3
PIEP3
PIFP3
PERP2
PPSP2
PIEP2
PIFP2
PERP1
PPSP1
PIEP1
PIFP1
PERP0
PPSS0
PIEP0
PIFP0
PIFP
PTH6
PTH5
PTH4
PTH3
PTH2
PTH1
PTH0
PTH
Read: PTIH7
Write:
PTIH6
PTIH5
PTIH4
PTIH3
PTIH2
PTIH1
PTIH0
PTIH
Read:
DDRH7 DDRH7 DDRH5 DDRH4 DDRH3 DDRH2 DDRH1 DDRH0
RDRH7 RDRH6 RDRH5 RDRH4 RDRH3 RDRH2 RDRH1 RDRH0
PERH7 PERH6 PERH5 PERH4 PERH3 PERH2 PERH1 PERH0
DDRH
RDRH
PERH
PPSH
Write:
Read:
Write:
Read:
Write:
Read:
Write:
PPSH7
PPSH6
PPSH5
PPSH4
PPSH3
PPSH2
PPSH1
PPSH0
47
MC9S12DT256 Device User Guide — V03.03
$0240 - $027F
PIM (Port Integration Module PIM_9DP256)
Address
$0266
Name
PIEH
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
PIEH7
PIEH6
PIEH5
PIEH4
PIEH3
PIEH2
PIEH1
PIEH0
$0267
$0268
$0269
$026A
$026B
$026C
$026D
$026E
$026F
PIFH7
PTJ7
PIFH6
PIFH5
0
PIFH4
0
PIFH3
0
PIFH2
0
PIFH1
PIFH0
PIFH
PTJ
PTJ6
PTJ1
PTJ0
Read: PTIJ7
Write:
Read:
DDRJ7
Write:
Read:
RDRJ7
Write:
Read:
PERJ7
Write:
Read:
PPSJ7
Write:
Read:
PIEJ7
Write:
Read:
PIFJ7
Write:
PTIJ6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PTIJ1
PTIJ0
PTIJ
DDRJ7
RDRJ6
PERJ6
PPSJ6
PIEJ6
DDRJ1
RDRJ1
PERJ1
PPSJ1
PIEJ1
DDRJ0
RDRJ0
PERJ0
PPSJ0
PIEJ0
DDRJ
RDRJ
PERJ
PPSJ
PIEJ
PIFJ6
PIFJ1
PIFJ0
PIFJ
$0270 -
$027F
Read:
Reserved
$0280 - $02BF
CAN4 (Motorola Scalable CAN - MSCAN)
Address
$0280
Name
Bit 7
Bit 6
RXACT
Bit 5
Bit 4
SYNCH
Bit 3
TIME
0
Bit 2
Bit 1
Bit 0
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
RXFRM
CSWAI
WUPE
SLPRQ INITRQ
CAN4CTL0
SLPAK
INITAK
$0281
$0282
$0283
$0284
$0285
$0286
$0287
$0288
$0289
$028A
$028B
CANE CLKSRC LOOPB LISTEN
SJW1 SJW0 BRP5 BRP4
WUPM
BRP2
CAN4CTL1
CAN4BTR0
CAN4BTR1
CAN4RFLG
CAN4RIER
CAN4TFLG
CAN4TIER
CAN4TARQ
CAN4TAAK
CAN4TBSEL
CAN4IDAC
BRP3
BRP1
BRP0
SAMP TSEG22 TSEG21 TSEG20 TSEG13 TSEG12 TSEG11 TSEG10
RSTAT1 RSTAT0 TSTAT1 TSTAT0
WUPIF
CSCIF
OVRIF
RXF
RXFIE
TXE0
WUPIE
0
CSCIE RSTATE1 RSTATE0 TSTATE1 TSTATE0 OVRIE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TXE2
TXE1
0
0
0
0
0
TXEIE2 TXEIE1 TXEIE0
ABTRQ2 ABTRQ1 ABTRQ0
ABTAK2 ABTAK1 ABTAK0
TX2
TX1
TX0
IDHIT2
IDHIT1
IDHIT0
IDAM1
IDAM0
48
MC9S12DT256 Device User Guide — V03.03
$0280 - $02BF
CAN4 (Motorola Scalable CAN - MSCAN)
Address
$028C
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
Read:
Write:
Reserved
0
0
0
0
0
0
0
0
$028D
$028E
$028F
$0290
$0291
$0292
$0293
$0294
$0295
$0296
$0297
$0298
$0299
$029A
$029B
$029C
$029D
$029E
$029F
Reserved
CAN4RXERR
CAN4TXERR
CAN4IDAR0
CAN4IDAR1
CAN4IDAR2
CAN4IDAR3
CAN4IDMR0
CAN4IDMR1
CAN4IDMR2
CAN4IDMR3
CAN4IDAR4
CAN4IDAR5
CAN4IDAR6
CAN4IDAR7
CAN4IDMR4
CAN4IDMR5
CAN4IDMR6
CAN4IDMR7
CAN4RXFG
CAN4TXFG
Read: RXERR7 RXERR6 RXERR5 RXERR4 RXERR3 RXERR2 RXERR1 RXERR0
Write:
Read: TXERR7 TXERR6 TXERR5 TXERR4 TXERR3 TXERR2 TXERR1 TXERR0
Write:
Read:
AC7
AC7
AC7
AC7
AM7
AM7
AM7
AM7
AC7
AC7
AC7
AC7
AM7
AM7
AM7
AM7
AC6
AC6
AC6
AC6
AM6
AM6
AM6
AM6
AC6
AC6
AC6
AC6
AM6
AM6
AM6
AM6
AC5
AC5
AC5
AC5
AM5
AM5
AM5
AM5
AC5
AC5
AC5
AC5
AM5
AM5
AM5
AM5
AC4
AC4
AC4
AC4
AM4
AM4
AM4
AM4
AC4
AC4
AC4
AC4
AM4
AM4
AM4
AM4
AC3
AC3
AC3
AC3
AM3
AM3
AM3
AM3
AC3
AC3
AC3
AC3
AM3
AM3
AM3
AM3
AC2
AC2
AC2
AC2
AM2
AM2
AM2
AM2
AC2
AC2
AC2
AC2
AM2
AM2
AM2
AM2
AC1
AC1
AC1
AC1
AM1
AM1
AM1
AM1
AC1
AC1
AC1
AC1
AM1
AM1
AM1
AM1
AC0
AC0
AC0
AC0
AM0
AM0
AM0
AM0
AC0
AC0
AC0
AC0
AM0
AM0
AM0
AM0
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
FOREGROUND RECEIVE BUFFER see Table 1-2
$02A0 -
$02AF
$02B0 -
$02BF
FOREGROUND TRANSMIT BUFFER see Table 1-2
49
MC9S12DT256 Device User Guide — V03.03
$02C0 - $03FF
Reserved space
Address
Name
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
0
Bit 0
0
Read:
Write:
$02C0
- $03FF
Reserved
1.7 Part ID Assignments
The part ID is located in two 8-bit registers PARTIDH and PARTIDL (addresses $001A and $001B after
reset). The read-only value is a unique part ID for each revision of the chip. Table 1-3 shows the assigned
part ID number.
Table 1-3 Assigned Part ID Numbers
1
Device
Mask Set Number
Part ID
MC9S12DT256
0L91N
$0030
NOTES:
1. The coding is as follows:
Bit 15-12: Major family identifier
Bit 11-8: Minor family identifier
Bit 7-4: Major mask set revision number including FAB transfers
Bit 3-0: Minor - non full - mask set revision
The device memory sizes are located in two 8-bit registers MEMSIZ0 and MEMSIZ1 (addresses $001C
and $001D after reset). Table 1-4 shows the read-only values of these registers. Refer to section Module
Mapping and Control (MMC) of HCS12 Core User Guide for further details.
Table 1-4 Memory size registers
Register name
MEMSIZ0
Value
$25
MEMSIZ1
$81
50
MC9S12DT256 Device User Guide — V03.03
Section 2 Signal Description
This section describes signals that connect off-chip. It includes a pinout diagram, a table of signal
properties, and detailed discussion of signals. It is built from the signal description sections of the Block
User Guides of the individual IP blocks on the device.
2.1 Device Pinout
The MC9S12DT256/MC9S12DJ256/MC9S12DG256 and MC9S12A256 is available in a 112-pin low
profile quad flat pack (LQFP) and MC9S12DJ256/MC9S12DG256 and MC9S12A256 is also available in
a 80-pin quad flat pack (QFP). Most pins perform two or more functions, as described in the Signal
Descriptions. Figure 2-1 and Figure 2-2 show the pin assignments.
51
MC9S12DT256 Device User Guide — V03.03
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
SS1/PWM3/KWP3/PP3
SCK1/PWM2/KWP2/PP2
MOSI1/PWM1/KWP1/PP1
MISO1/PWM0/KWP0/PP0
XADDR17/PK3
XADDR16/PK2
XADDR15/PK1
XADDR14/PK0
IOC0/PT0
1
2
3
4
5
6
7
8
VRH
VDDA
PAD15/AN15/ETRIG1
PAD07/AN07/ETRIG0
PAD14/AN14
PAD06/AN06
PAD13/AN13
PAD05/AN05
PAD12/AN12
PAD04/AN04
PAD11/AN11
PAD03/AN03
PAD10/AN10
PAD02/AN02
PAD09/AN09
PAD01/AN01
PAD08/AN08
9
IOC1/PT1
IOC2/PT2
IOC3/PT3
VDD1
VSS1
IOC4/PT4
IOC5/PT5
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
MC9S12DT256/MC9S12A256/
MC9S12DJ256/MC9S12DG256
IOC6/PT6
IOC7/PT7
PAD00/AN00
VSS2
VDD2
XADDR19/PK5
XADDR18/PK4
KWJ1/PJ1
PA7/ADDR15/DATA15
PA6/ADDR14/DATA14
PA5/ADDR13/DATA13
PA4/ADDR12/DATA12
PA3/ADDR11/DATA11
PA2/ADDR10/DATA10
PA1/ADDR9/DATA9
PA0/ADDR8/DATA8
KWJ0/PJ0
MODC/TAGHI/BKGD
ADDR0/DATA0/PB0
ADDR1/DATA1/PB1
ADDR2/DATA2/PB2
ADDR3/DATA3/PB3
ADDR4/DATA4/PB4
Signals shown in Bold are not available on the 80 Pin Package
Figure 2-1 Pin Assignments in 112-pin LQFP
52
MC9S12DT256 Device User Guide — V03.03
60
59
58
57
SS1/PWM3/KWP3/PP3
SCK1/PWM2/KWP2/PP2
MOSI1/PWM1/KWP1/PP1
MISO1/PWM0/KWP0/PP0
IOC0/PT0
1
2
3
4
VRH
VDDA
PAD07/AN07/ETRIG0
PAD06/AN06
56
5
PAD05/AN05
55
IOC1/PT1
6
PAD04/AN04
54
IOC2/PT2
7
PAD03/AN03
53
IOC3/PT3
8
PAD02/AN02
52
VDD1
9
PAD01/AN01
51
50
49
48
47
46
45
44
VSS1
IOC4/PT4
IOC5/PT5
IOC6/PT6
10
11
12
13
14
15
16
17
18
19
20
PAD00/AN00
VSS2
VDD2
PA7/ADDR15/DATA15
PA6/ADDR14/DATA14
PA5/ADDR13/DATA13
PA4/ADDR12/DATA12
PA3/ADDR11/DATA11
MC9S12DJ256
80 QFP
IOC7/PT7
MODC/TAGHI/BKGD
ADDR0/DATA0/PB0
ADDR1/DATA1/PB1
ADDR2/DATA2/PB2
ADDR3/DATA3/PB3
ADDR4/DATA4/PB4
43
42
41
PA2/ADDR10/DATA10
PA1/ADDR9/DATA9
PA0/ADDR8/DATA8
Figure 2-2 Pin Assignments in 80-pin QFP for MC9S12DJ256
2.2 Signal Properties Summary
Table 2-1summarizes the pin functionality. Signals shown in bold are not available in the 80 pin package.
Table 2-1 Signal Properties
53
MC9S12DT256 Device User Guide — V03.03
Internal Pull
Resistor
Pin Name Pin Name Pin Name Pin Name Pin Name Power
Description
Funct. 1
Funct. 2
Funct. 3 Funct. 4 Funct. 5 Supply
Reset
CTRL
State
EXTAL
XTAL
—
—
—
—
—
—
—
—
VDDPLL
VDDPLL
NA
NA
NA
Oscillator Pins
NA
RESET
TEST
—
—
—
—
—
—
—
—
—
—
—
—
VDDR
N.A.
None
NA
None
NA
External Reset
Test Input
VREGEN
VDDX
NA
NA
Voltage Regulator Enable Input
XFC
—
—
—
—
—
—
VDDPLL
VDDR
NA
NA
Up
PLL Loop Filter
Always
Up
Background Debug, Tag High, Mode
Input
BKGD
TAGHI
MODC
Port AD Input, Analog Input AN7
of ATD1, External Trigger Input of
PAD[15]
AN1[7]
ETRIG1
—
—
VDDA
None
None
ATD1
Port AD Inputs, Analog Inputs
AN[6:0] of ATD1
PAD[14:8]
AN1[6:0]
AN0[7]
—
—
—
VDDA
None
None
None
None
Port AD Input, Analog Input AN7 of
ATD0, External Trigger Input of ATD0
PAD[7]
ETRIG0
—
—
VDDA
None
Port AD Inputs, Analog Inputs
AN[6:0] of ATD0
PAD[6:0]
PA[7:0]
AN0[6:0]
—
—
—
—
—
—
VDDA
VDDR
None
ADDR[15:8]/
DATA[15:8]
PUCR
Disabled Port A I/O, Multiplexed Address/Data
Disabled Port B I/O, Multiplexed Address/Data
ADDR[7:0]/
DATA[7:0]
PB[7:0]
PE7
—
—
—
—
—
VDDR
VDDR
PUCR
PUCR
NOACC
XCLKS
Up
Port E I/O, Access, Clock Select
Port E I/O, Pipe Status, Mode Input
While RESET
pin is low:
PE6
PE5
IPIPE1
MODB
MODA
—
—
—
—
VDDR
VDDR
Down
While RESET
pin is low:
IPIPE0
Port E I/O, Pipe Status, Mode Input
Down
PE4
PE3
PE2
PE1
PE0
ECLK
LSTRB
R/W
—
TAGLO
—
—
—
—
—
—
—
—
—
—
—
VDDR
VDDR
VDDR
VDDR
VDDR
PUCR
Up
Up
Up
Up
Up
Port E I/O, Bus Clock Output
PUCR
PUCR
PUCR
PUCR
Port E I/O, Byte Strobe, Tag Low
Port E I/O, R/W in expanded modes
Port E Input, Maskable Interrupt
Port E Input, Non Maskable Interrupt
IRQ
—
XIRQ
—
PERH/
PPSH
PH7
PH6
PH5
KWH7
KWH6
KWH5
SS2
—
—
—
—
—
—
VDDR
VDDR
VDDR
Disabled Port H I/O, Interrupt, SS of SPI2
Disabled Port H I/O, Interrupt, SCK of SPI2
Disabled Port H I/O, Interrupt, MOSI of SPI2
PERH/
PPSH
SCK2
MOSI2
PERH/
PPSH
54
MC9S12DT256 Device User Guide — V03.03
Internal Pull
Resistor
Pin Name Pin Name Pin Name Pin Name Pin Name Power
Description
Funct. 1
Funct. 2
Funct. 3 Funct. 4 Funct. 5 Supply
Reset
CTRL
State
PERH/
PH4
PH3
KWH4
KWH3
KWH2
KWH1
KWH0
KWJ7
MISO2
SS1
—
—
—
VDDR
VDDR
VDDR
VDDR
VDDR
VDDX
VDDX
VDDX
Disabled Port H I/O, Interrupt, MISO of SPI2
PPSH
PERH/
—
—
Disabled Port H I/O, Interrupt, SS of SPI1
PPSH
PERH/
PH2
SCK1
MOSI1
MISO1
TXCAN4
RXCAN4
—
—
Disabled Port H I/O, Interrupt, SCK of SPI1
PPSH
PERH/
PH1
—
—
Disabled Port H I/O, Interrupt, MOSI of SPI1
PPSH
PERH/
PH0
—
—
Disabled Port H I/O, Interrupt, MISO of SPI1
PPSH
PERJ/
PPSJ
Port J I/O, Interrupt, TX of CAN4,
SCL of IIC, TX of CAN0
PJ7
SCL
SDA
—
TXCAN0
RXCAN0
—
Up
Up
Up
Port J I/O, Interrupt, RX of CAN4,
SDA of IIC, RX of CAN0
PERJ/
PPSJ
PJ6
KWJ6
PERJ/
PSJ
PJ[1:0]
KWJ[1:0]
ECS
Port J I/O, Interrupts
Port K I/O, Emulation Chip Select,
ROM On Enable
PK7
PK[5:0]
PM7
ROMONE
—
—
—
—
—
—
VDDX
VDDX
VDDX
PUCR
PUCR
Up
Up
XADDR
[19:14]
—
—
Port K I/O, Extended Addresses
PERM/
PPSM
TXCAN4
RXCAN4
TXCAN0
RXCAN0
TXCAN1
RXCAN1
TXCAN0
RXCAN0
KWP7
Disabled Port M I/O, TX of CAN4
PERM/
PPSM
PM6
PM5
PM4
PM3
PM2
PM1
PM0
PP7
PP6
PP5
—
—
SCK0
MOSI0
—
—
—
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
Disabled Port M I/O RX of CAN4
PERM/
PPSM
Port M I/OCAN0, CAN4, SCK of
TXCAN4
RXCAN4
TXCAN0
RXCAN0
TXB
Disabled
SPI0
PERM/
PPSM
Port M I/O, CAN0, CAN4, MOSI of
—
Disabled
SPI0
PERM/
PPSM
Port M I/O, TX of CAN1, CAN0, SS
SS0
MISO0
—
Disabled
of SPI0
PERM/
PPSM
Port M I/O, RX of CAN1, CAN0,
—
Disabled
MISO of SPI0
PERM/
PPSM
—
Disabled Port M I/O, TX of CAN0, TX of BDLC
PERM/
PPSM
RXB
—
—
Disabled Port M I/O, RX of CAN0, RX of BDLC
Port P I/O, Interrupt, Channel 7 of
PERP/
PPSP
PWM7
PWM6
PWM5
SCK2
SS2
MOSI2
—
Disabled
PWM, SCK of SPI2
PERP/
PPSP
Port P I/O, Interrupt, Channel 6 of
KWP6
—
Disabled
PWM, SS of SPI2
PERP/
PPSP
Port P I/O, Interrupt, Channel 5 of
KWP5
—
Disabled
PWM, MOSI of SPI2
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MC9S12DT256 Device User Guide — V03.03
Internal Pull
Resistor
Pin Name Pin Name Pin Name Pin Name Pin Name Power
Description
Funct. 1
Funct. 2
Funct. 3 Funct. 4 Funct. 5 Supply
Reset
CTRL
State
PERP/
PPSP
Port P I/O, Interrupt, Channel 4 of
PWM, MISO2 of SPI2
PP4
PP3
PP2
PP1
PP0
PS7
PS6
PS5
PS4
PS3
PS2
PS1
PS0
PT[7:0]
KWP4
KWP3
KWP2
KWP1
KWP0
SS0
PWM4
PWM3
PWM2
PWM1
PWM0
—
MISO2
SS1
SCK1
MOSI1
MISO1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
VDDX
Disabled
PERP/
PPSP
Port P I/O, Interrupt, Channel 3 of
PWM, SS of SPI1
Disabled
Disabled
Disabled
Disabled
Up
PERP/
PPSP
Port P I/O, Interrupt, Channel 2 of
PWM, SCK of SPI1
PERP/
PPSP
Port P I/O, Interrupt, Channel 1 of
PWM, MOSI of SPI1
PERP/
PPSP
Port P I/O, Interrupt, Channel 0 of
PWM, MISO2 of SPI1
PERS/
PPSS
Port S I/O, SS of SPI0
Port S I/O, SCK of SPI0
Port S I/O, MOSI of SPI0
Port S I/O, MISO of SPI0
Port S I/O, TXD of SCI1
Port S I/O, RXD of SCI1
Port S I/O, TXD of SCI0
Port S I/O, RXD of SCI0
PERS/
PPSS
SCK0
MOSI0
MISO0
TXD1
—
—
Up
PERS/
PPSS
—
—
Up
PERS/
PPSS
—
—
Up
PERS/
PPSS
—
—
Up
PERS/
PPSS
RXD1
TXD0
—
—
Up
PERS/
PPSS
—
—
Up
PERS/
PPSS
RXD0
IOC[7:0]
—
—
Up
PERT/
PPST
—
—
Disabled Port T I/O, Timer channels
2.3 Detailed Signal Descriptions
2.3.1 EXTAL, XTAL — Oscillator Pins
EXTAL and XTAL are the crystal driver and external clock pins. On reset all the device clocks are derived
from the EXTAL input frequency. XTAL is the crystal output.
2.3.2 RESET — External Reset Pin
An active low bidirectional control signal, it acts as an input to initialize the MCU to a known start-up
state, and an output when an internal MCU function causes a reset.
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MC9S12DT256 Device User Guide — V03.03
2.3.3 TEST — Test Pin
This input only pin is reserved for test.
NOTE: The TEST pin must be tied to VSS in all applications.
2.3.4 VREGEN — Voltage Regulator Enable Pin
This input only pin enables or disables the on-chip voltage regulator.
2.3.5 XFC — PLL Loop Filter Pin
PLL loop filter. Please ask your Motorola representative for the interactive application note to compute
PLL loop filter elements. Any current leakage on this pin must be avoided.
XFC
R
0
C
P
MCU
C
S
VDDPLL
VDDPLL
Figure 2-3 PLL Loop Filter Connections
2.3.6 BKGD / TAGHI / MODC — Background Debug, Tag High, and Mode Pin
The BKGD/TAGHI/MODC pin is used as a pseudo-open-drain pin for the background debug
communication. In MCU expanded modes of operation when instruction tagging is on, an input low on
this pin during the falling edge of E-clock tags the high half of the instruction word being read into the
instruction queue. It is used as a MCU operating mode select pin during reset. The state of this pin is
latched to the MODC bit at the rising edge of RESET. This pin has a permanently enabled pull-up device.
2.3.7 PAD15 / AN15 / ETRIG1 — Port AD Input Pin of ATD1
PAD15 is a general purpose input pin and analog input AN7 of the analog to digital converter ATD1. It
can act as an external trigger input for the ATD1.
2.3.8 PAD[14:08] / AN[14:08] — Port AD Input Pins of ATD1
PAD14 - PAD08 are general purpose input pins and analog inputs AN[6:0] of the analog to digital
converter ATD1.
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2.3.9 PAD7 / AN07 / ETRIG0 — Port AD Input Pin of ATD0
PAD7 is a general purpose input pin and analog input AN7 of the analog to digital converter ATD0. It can
act as an external trigger input for the ATD0.
2.3.10 PAD[06:00] / AN[06:00] — Port AD Input Pins of ATD0
PAD06 - PAD00 are general purpose input pins and analog inputs AN[6:0] of the analog to digital
converter ATD0.
2.3.11 PA[7:0] / ADDR[15:8] / DATA[15:8] — Port A I/O Pins
PA7-PA0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.12 PB[7:0] / ADDR[7:0] / DATA[7:0] — Port B I/O Pins
PB7-PB0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.13 PE7 / NOACC / XCLKS — Port E I/O Pin 7
PE7 is a general purpose input or output pin. During MCU expanded modes of operation, the NOACC
signal, when enabled, is used to indicate that the current bus cycle is an unused or “free” cycle. This signal
will assert when the CPU is not using the bus.The XCLKS is an input signal which controls whether a
crystal in combination with the internal Colpitts (low power) oscillator is used or whether Pierce
oscillator/external clock circuitry is used. The state of this pin is latched at the rising edge of RESET. If
the input is a logic low the EXTAL pin is configured for an external clock drive or a Pierce Oscillator. If
input is a logic high a Colpitts oscillator circuit is configured on EXTAL and XTAL. Since this pin is an
.
input with a pull-up device during reset, if the pin is left floating, the default configuration is a Colpitts
oscillator circuit on EXTAL and XTAL.
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MC9S12DT256 Device User Guide — V03.03
Figure 2-4 Colpitts Oscillator Connections (PE7=1)
EXTAL
C
*
DC
C
MCU
Crystal or
1
ceramic resonator
XTAL
C
2
VSSPLL
* Due to the nature of a translated ground Colpitts oscillator a
DC voltage bias is applied to the crystal
.Please contact the crystal manufacturer for crystal DC
Figure 2-5 Pierce Oscillator Connections (PE7=0)
EXTAL
C
1
MCU
RB
Crystal or
ceramic resonator
*
RS
XTAL
C
2
VSSPLL
* Rs can be zero (shorted) when use with higher frequency crystals.
Refer to manufacturer’s data.
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MC9S12DT256 Device User Guide — V03.03
Figure 2-6 External Clock Connections (PE7=0)
EXTAL
CMOS-COMPATIBLE
EXTERNAL OSCILLATO
(VDDPLL-Level)
R
MCU
XTAL
not connected
2.3.14 PE6 / MODB / IPIPE1 — Port E I/O Pin 6
PE6 is a general purpose input or output pin. It is used as a MCU operating mode select pin during reset.
The state of this pin is latched to the MODB bit at the rising edge of RESET. This pin is shared with the
instruction queue tracking signal IPIPE1. This pin is an input with a pull-down device which is only active
when RESET is low.
2.3.15 PE5 / MODA / IPIPE0 — Port E I/O Pin 5
PE5 is a general purpose input or output pin. It is used as a MCU operating mode select pin during reset.
The state of this pin is latched to the MODA bit at the rising edge of RESET. This pin is shared with the
instruction queue tracking signal IPIPE0. This pin is an input with a pull-down device which is only active
when RESET is low.
2.3.16 PE4 / ECLK — Port E I/O Pin 4
PE4 is a general purpose input or output pin. It can be configured to drive the internal bus clock ECLK.
ECLK can be used as a timing reference.
2.3.17 PE3 / LSTRB / TAGLO — Port E I/O Pin 3
PE3 is a general purpose input or output pin. In MCU expanded modes of operation, LSTRB can be used
for the low-byte strobe function to indicate the type of bus access and when instruction tagging is on,
TAGLO is used to tag the low half of the instruction word being read into the instruction queue.
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2.3.18 PE2 / R/W — Port E I/O Pin 2
PE2 is a general purpose input or output pin. In MCU expanded modes of operations, this pin drives the
read/write output signal for the external bus. It indicates the direction of data on the external bus.
2.3.19 PE1 / IRQ — Port E Input Pin 1
PE1 is a general purpose input pin and the maskable interrupt request input that provides a means of
applying asynchronous interrupt requests. This will wake up the MCU from STOP or WAIT mode.
2.3.20 PE0 / XIRQ — Port E Input Pin 0
PE0 is a general purpose input pin and the non-maskable interrupt request input that provides a means of
applying asynchronous interrupt requests. This will wake up the MCU from STOP or WAIT mode.
2.3.21 PH7 / KWH7 / SS2 — Port H I/O Pin 7
PH7 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as slave select pin SS of the Serial Peripheral Interface
2 (SPI2).
2.3.22 PH6 / KWH6 / SCK2 — Port H I/O Pin 6
PH6 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as serial clock pin SCK of the Serial Peripheral Interface
2 (SPI2).
2.3.23 PH5 / KWH5 / MOSI2 — Port H I/O Pin 5
PH5 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as master output (during master mode) or slave input
pin (during slave mode) MOSI of the Serial Peripheral Interface 2 (SPI2).
2.3.24 PH4 / KWH4 / MISO2 — Port H I/O Pin 2
PH4 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as master input (during master mode) or slave output
(during slave mode) pin MISO of the Serial Peripheral Interface 2 (SPI2).
2.3.25 PH3 / KWH3 / SS1 — Port H I/O Pin 3
PH3 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as slave select pin SS of the Serial Peripheral Interface
1 (SPI1).
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MC9S12DT256 Device User Guide — V03.03
2.3.26 PH2 / KWH2 / SCK1 — Port H I/O Pin 2
PH2 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as serial clock pin SCK of the Serial Peripheral Interface
1 (SPI1).
2.3.27 PH1 / KWH1 / MOSI1 — Port H I/O Pin 1
PH1 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as master output (during master mode) or slave input
pin (during slave mode) MOSI of the Serial Peripheral Interface 1 (SPI1).
2.3.28 PH0 / KWH0 / MISO1 — Port H I/O Pin 0
PH0 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as master input (during master mode) or slave output
(during slave mode) pin MISO of the Serial Peripheral Interface 1 (SPI1).
2.3.29 PJ7 / KWJ7 / TXCAN4 / SCL — PORT J I/O Pin 7
PJ7 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as the transmit pin TXCAN for the Motorola Scalable
Controller Area Network controller 4 (CAN4) or the serial clock pin SCL of the IIC module.
2.3.30 PJ6 / KWJ6 / RXCAN4 / SDA — PORT J I/O Pin 6
PJ6 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as the receive pin RXCAN for the Motorola Scalable
Controller Area Network controller 4 (CAN4) or the serial data pin SDA of the IIC module.
2.3.31 PJ[1:0] / KWJ[1:0] — Port J I/O Pins [1:0]
PJ1 and PJ0 are general purpose input or output pins. They can be configured to generate an interrupt
causing the MCU to exit STOP or WAIT mode .
2.3.32 PK7 / ECS / ROMONE — Port K I/O Pin 7
PK7 is a general purpose input or output pin. During MCU expanded modes of operation, this pin is used
as the emulation chip select output (ECS). During MCU normal expanded wide and narrow modes of
operation, this pin is used to enable the Flash EEPROM memory in the memory map (ROMONE). At the
rising edge of RESET, the state of this pin is latched to the ROMON bit.
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MC9S12DT256 Device User Guide — V03.03
2.3.33 PK[5:0] / XADDR[19:14] — Port K I/O Pins [5:0]
PK5-PK0 are general purpose input or output pins. In MCU expanded modes of operation, these pins
provide the expanded address XADDR[19:14] for the external bus.
2.3.34 PM7 / TXCAN4 — Port M I/O Pin 7
PM7 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controller 4 (CAN4 ).
2.3.35 PM6 / RXCAN4 — Port M I/O Pin 6
PM6 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controller 4 (CAN4).
2.3.36 PM5 / TXCAN0 / TXCAN4 / SCK0 — Port M I/O Pin 5
PM5 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controllers 0 or 4 (CAN0 or CAN4). It can be configured as
the serial clock pin SCK of the Serial Peripheral Interface 0 (SPI0).
2.3.37 PM4 / RXCAN0 / RXCAN4/ MOSI0 — Port M I/O Pin 4
PM4 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controllers 0 or 4 ( CAN0 or CAN4). It can be configured as
the master output (during master mode) or slave input pin (during slave mode) MOSI for the Serial
Peripheral Interface 0 (SPI0).
2.3.38 PM3 / TXCAN1 / TXCAN0 / SS0 — Port M I/O Pin 3
PM3 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controllers 1 or 0 (CAN1 or CAN0). It can be configured as
the slave select pin SS of the Serial Peripheral Interface 0 (SPI0).
2.3.39 PM2 / RXCAN1 / RXCAN0 / MISO0 — Port M I/O Pin 2
PM2 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controllers 1 or 0 (CAN1 or CAN0). It can be configured as
the master input (during master mode) or slave output pin (during slave mode) MISO for the Serial
Peripheral Interface 0 (SPI0).
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MC9S12DT256 Device User Guide — V03.03
2.3.40 PM1 / TXCAN0 / TXB — Port M I/O Pin 1
PM1 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controller 0 (CAN0). It can be configured as the transmit pin
TXB of the BDLC.
2.3.41 PM0 / RXCAN0 / RXB — Port M I/O Pin 0
PM0 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controller 0 (CAN0). It can be configured as the receive pin
RXB of the BDLC.
2.3.42 PP7 / KWP7 / PWM7 / SCK2 — Port P I/O Pin 7
PP7 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 7 output. It
can be configured as serial clock pin SCK of the Serial Peripheral Interface 2 (SPI2).
2.3.43 PP6 / KWP6 / PWM6 / SS2 — Port P I/O Pin 6
PP6 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 6 output. It
can be configured as slave select pin SS of the Serial Peripheral Interface 2 (SPI2).
2.3.44 PP5 / KWP5 / PWM5 / MOSI2 — Port P I/O Pin 5
PP5 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 5 output. It
can be configured as master output (during master mode) or slave input pin (during slave mode) MOSI of
the Serial Peripheral Interface 2 (SPI2).
2.3.45 PP4 / KWP4 / PWM4 / MISO2 — Port P I/O Pin 4
PP4 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 4 output. It
can be configured as master input (during master mode) or slave output (during slave mode) pin MISO of
the Serial Peripheral Interface 2 (SPI2).
2.3.46 PP3 / KWP3 / PWM3 / SS1 — Port P I/O Pin 3
PP3 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 3 output. It
can be configured as slave select pin SS of the Serial Peripheral Interface 1 (SPI1).
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MC9S12DT256 Device User Guide — V03.03
2.3.47 PP2 / KWP2 / PWM2 / SCK1 — Port P I/O Pin 2
PP2 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 2 output. It
can be configured as serial clock pin SCK of the Serial Peripheral Interface 1 (SPI1).
2.3.48 PP1 / KWP1 / PWM1 / MOSI1 — Port P I/O Pin 1
PP1 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 1 output. It
can be configured as master output (during master mode) or slave input pin (during slave mode) MOSI of
the Serial Peripheral Interface 1 (SPI1).
2.3.49 PP0 / KWP0 / PWM0 / MISO1 — Port P I/O Pin 0
PP0 is a general purpose input or output pin. It can be configured to generate an interrupt causing the MCU
to exit STOP or WAIT mode. It can be configured as Pulse Width Modulator (PWM) channel 0 output. It
can be configured as master input (during master mode) or slave output (during slave mode) pin MISO of
the Serial Peripheral Interface 1 (SPI1).
2.3.50 PS7 / SS0 — Port S I/O Pin 7
PS6 is a general purpose input or output pin. It can be configured as the slave select pin SS of the Serial
Peripheral Interface 0 (SPI0).
2.3.51 PS6 / SCK0 — Port S I/O Pin 6
PS6 is a general purpose input or output pin. It can be configured as the serial clock pin SCK of the Serial
Peripheral Interface 0 (SPI0).
2.3.52 PS5 / MOSI0 — Port S I/O Pin 5
PS5 is a general purpose input or output pin. It can be configured as master output (during master mode)
or slave input pin (during slave mode) MOSI of the Serial Peripheral Interface 0 (SPI0).
2.3.53 PS4 / MISO0 — Port S I/O Pin 4
PS4 is a general purpose input or output pin. It can be configured as master input (during master mode) or
slave output pin (during slave mode) MOSI of the Serial Peripheral Interface 0 (SPI0).
2.3.54 PS3 / TXD1 — Port S I/O Pin 3
PS3 is a general purpose input or output pin. It can be configured as the transmit pin TXD of Serial
Communication Interface 1 (SCI1).
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MC9S12DT256 Device User Guide — V03.03
2.3.55 PS2 / RXD1 — Port S I/O Pin 2
PS2 is a general purpose input or output pin. It can be configured as the receive pin RXD of Serial
Communication Interface 1 (SCI1).
2.3.56 PS1 / TXD0 — Port S I/O Pin 1
PS1 is a general purpose input or output pin. It can be configured as the transmit pin TXD of Serial
Communication Interface 0 (SCI0).
2.3.57 PS0 / RXD0 — Port S I/O Pin 0
PS0 is a general purpose input or output pin. It can be configured as the receive pin RXD of Serial
Communication Interface 0 (SCI0).
2.3.58 PT[7:0] / IOC[7:0] — Port T I/O Pins [7:0]
PT7-PT0 are general purpose input or output pins. They can be configured as input capture or output
compare pins IOC7-IOC0 of the Enhanced Capture Timer (ECT).
2.4 Power Supply Pins
MC9S12DT256 power and ground pins are described below.
NOTE: All VSS pins must be connected together in the application.
2.4.1 VDDX,VSSX — Power & Ground Pins for I/O Drivers
External power and ground for I/O drivers. Because fast signal transitions place high, short-duration
current demands on the power supply, use bypass capacitors with high-frequency characteristics and place
them as close to the MCU as possible. Bypass requirements depend on how heavily the MCU pins are
loaded.
2.4.2 VDDR, VSSR — Power & Ground Pins for I/O Drivers & for Internal
Voltage Regulator
External power and ground for I/O drivers and input to the internal voltage regulator. Because fast signal
transitions place high, short-duration current demands on the power supply, use bypass capacitors with
high-frequency characteristics and place them as close to the MCU as possible. Bypass requirements
depend on how heavily the MCU pins are loaded.
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2.4.3 VDD1, VDD2, VSS1, VSS2 — Core Power Pins
Power is supplied to the MCU through VDD and VSS. Because fast signal transitions place high,
short-duration current demands on the power supply, use bypass capacitors with high-frequency
characteristics and place them as close to the MCU as possible. This 2.5V supply is derived from the
internal voltage regulator. There is no static load on those pins allowed. The internal voltage regulator is
turned off, if VREGEN is tied to ground.
NOTE: No load allowed except for bypass capacitors.
2.4.4 VDDA, VSSA — Power Supply Pins for ATD and VREG
VDDA, VSSA are the power supply and ground input pins for the voltage regulator and the analog to
digital converter. It also provides the reference for the internal voltage regulator. This allows the supply
voltage to the ATD and the reference voltage to be bypassed independently.
2.4.5 VRH, VRL — ATD Reference Voltage Input Pins
VRH and VRL are the reference voltage input pins for the analog to digital converter.
2.4.6 VDDPLL, VSSPLL — Power Supply Pins for PLL
Provides operating voltage and ground for the Oscillator and the Phased-Locked Loop. This allows the
supply voltage to the Oscillator and PLL to be bypassed independently.This 2.5V voltage is generated by
the internal voltage regulator.
NOTE: No load allowed except for bypass capacitors.
Table 2-2 MC9S12DP256 Power and Ground Connection Summary
Pin Number
Nominal
Voltage
Mnemonic
Description
112-pin QFP
V
13, 65
14, 66
41
2.5 V
0V
DD1, 2
Internal power and ground generated by internal regulator
V
SS1, 2
V
5.0 V
0 V
External power and ground, supply to pin drivers and internal
voltage regulator.
DDR
V
40
SSR
V
107
106
83
5.0 V
0 V
DDX
External power and ground, supply to pin drivers.
V
V
SSX
5.0 V
Operating voltage and ground for the analog-to-digital
converters and the reference for the internal voltage regulator,
allows the supply voltage to the A/D to be bypassed
independently.
DDA
V
86
0 V
SSA
V
85
84
0 V
RL
Reference voltages for the analog-to-digital converter.
V
5.0 V
RH
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MC9S12DT256 Device User Guide — V03.03
Pin Number
Nominal
112-pin QFP
Mnemonic
Description
Voltage
V
43
45
97
2.5 V
0 V
Provides operating voltage and ground for the Phased-Locked
Loop. This allows the supply voltage to the PLL to be
bypassed independently. Internal power and ground
generated by internal regulator.
DDPLL
V
SSPLL
VREGEN
5V
Internal Voltage Regulator enable/disable
2.4.7 VREGEN — On Chip Voltage Regulator Enable
Enables the internal 5V to 2.5V voltage regulator. If this pin is tied low, VDD1,2 and VDDPLL must be
supplied externally.
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Section 3 System Clock Description
3.1 Overview
The Clock and Reset Generator provides the internal clock signals for the core and all peripheral modules.
Figure 3-1 shows the clock connections from the CRG to all modules.
Consult the CRG Block User Guide for details on clock generation.
BDM
S12_CORE
core clock
Flash
RAM
EEPROM
ECT
ATD0, 1
PWM
EXTAL
XTAL
bus clock
CRG
SCI0, SCI1
SPI0, 1, 2
oscillator clock
CAN0, 1, 2, 3, 4
IIC
BDLC
PIM
Figure 3-1 Clock Connections
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Section 4 Modes of Operation
4.1 Overview
Eight possible modes determine the operating configuration of the MC9S12DT256. Each mode has an
associated default memory map and external bus configuration controlled by a further pin.
Three low power modes exist for the device.
4.2 Chip Configuration Summary
The operating mode out of reset is determined by the states of the MODC, MODB, and MODA pins during
reset (Table 4-1). The MODC, MODB, and MODA bits in the MODE register show the current operating
mode and provide limited mode switching during operation. The states of the MODC, MODB, and MODA
pins are latched into these bits on the rising edge of the reset signal. The ROMCTL signal allows the setting
of the ROMON bit in the MISC register thus controlling whether the internal Flash is visible in the
memory map. ROMON = 1 mean the Flash is visible in the memory map. The state of the ROMCTL pin
is latched into the ROMON bit in the MISC register on the rising edge of the reset signal.
Table 4-1 Mode Selection
BKGD =
MODC
PE6 =
MODB
PE5 =
MODA
PK7 =
ROMCTL
ROMON
Bit
Mode Description
Special Single Chip, BDM allowed and ACTIVE. BDM is
allowed in all other modes but a serial command is
required to make BDM active.
0
0
0
X
1
0
1
1
0
0
0
0
1
1
0
1
1
0
0
1
0
1
0
1
Emulation Expanded Narrow, BDM allowed
Special Test (Expanded Wide), BDM allowed
Emulation Expanded Wide, BDM allowed
Normal Single Chip, BDM allowed
X
0
0
1
1
0
X
1
0
1
0
1
Normal Expanded Narrow, BDM allowed
Peripheral; BDM allowed but bus operations would cause
bus conflicts (must not be used)
1
1
1
1
0
1
X
1
0
1
0
1
Normal Expanded Wide, BDM allowed
For further explanation on the modes refer to the Core User Guide.
Table 4-2 Clock Selection Based on PE7
PE7 = XCLKS
Description
1
Colpitts Oscillator selected
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Table 4-2 Clock Selection Based on PE7
PE7 = XCLKS
Description
0
Pierce Oscillator/external clock selected
Table 4-3 Voltage Regulator VREGEN
VREGEN
Description
1
Internal Voltage Regulator enabled
Internal Voltage Regulator disabled, VDD1,2 and
VDDPLL must be supplied externally with 2.5V
0
4.3 Security
The device will make available a security feature preventing the unauthorized read and write of the
memory contents. This feature allows:
•
•
•
•
Protection of the contents of FLASH,
Protection of the contents of EEPROM,
Operation in single-chip mode,
Operation from external memory with internal FLASH and EEPROM disabled.
The user must be reminded that part of the security must lie with the user’s code. An extreme example
would be user’s code that dumps the contents of the internal program. This code would defeat the purpose
of security. At the same time the user may also wish to put a back door in the user’s program. An example
of this is the user downloads a key through the SCI which allows access to a programming routine that
updates parameters stored in EEPROM.
4.3.1 Securing the Microcontroller
Once the user has programmed the FLASH and EEPROM (if desired), the part can be secured by
programming the security bits located in the FLASH module. These non-volatile bits will keep the part
secured through resetting the part and through powering down the part.
The security byte resides in a portion of the Flash array.
Check the Flash Block User Guide for more details on the security configuration.
4.3.2 Operation of the Secured Microcontroller
4.3.2.1 Normal Single Chip Mode
This will be the most common usage of the secured part. Everything will appear the same as if the part was
not secured with the exception of BDM operation. The BDM operation will be blocked.
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4.3.2.2 Executing from External Memory
The user may wish to execute from external space with a secured microcontroller. This is accomplished
by resetting directly into expanded mode. The internal FLASH and EEPROM will be disabled. BDM
operations will be blocked.
4.3.3 Unsecuring the Microcontroller
In order to unsecure the microcontroller, the internal FLASH and EEPROM must be erased. This can be
done through an external program in expanded mode.
Once the user has erased the FLASH and EEPROM, the part can be reset into special single chip mode.
This invokes a program that verifies the erasure of the internal FLASH and EEPROM. Once this program
completes, the user can erase and program the FLASH security bits to the unsecured state. This is generally
done through the BDM, but the user could also change to expanded mode (by writing the mode bits
through the BDM) and jumping to an external program (again through BDM commands). Note that if the
part goes through a reset before the security bits are reprogrammed to the unsecure state, the part will be
secured again.
4.4 Low Power Modes
The microcontroller features three main low power modes. Consult the respective Block User Guide for
information on the module behavior in Stop, Pseudo Stop, and Wait Mode. An important source of
information about the clock system is the Clock and Reset Generator User Guide (CRG).
4.4.1 Stop
Executing the CPU STOP instruction stops all clocks and the oscillator thus putting the chip in fully static
mode. Wake up from this mode can be done via reset or external interrupts.
4.4.2 Pseudo Stop
This mode is entered by executing the CPU STOP instruction. In this mode the oscillator is still running
and the Real Time Interrupt (RTI) or Watchdog (COP) sub module can stay active. Other peripherals are
turned off. This mode consumes more current than the full STOP mode, but the wake up time from this
mode is significantly shorter.
4.4.3 Wait
This mode is entered by executing the CPU WAI instruction. In this mode the CPU will not execute
instructions. The internal CPU signals (address and databus) will be fully static. All peripherals stay active.
For further power consumption the peripherals can individually turn off their local clocks.
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4.4.4 Run
Although this is not a low power mode, unused peripheral modules should not be enabled in order to save
power.
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Section 5 Resets and Interrupts
5.1 Overview
Consult the Exception Processing section of the HCS12 Core User Guide for information on resets and
interrupts.
5.2 Vectors
5.2.1 Vector Table
Table 5-1 lists interrupt sources and vectors in default order of priority.
Table 5-1 Interrupt Vector Locations
CCR
Mask
HPRIO Value
to Elevate
Vector Address
Interrupt Source
Local Enable
Reset
None
None
None
None
None
X-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
None
PLLCTL (CME, SCME)
COP rate select
None
–
$FFFE, $FFFF
$FFFC, $FFFD
$FFFA, $FFFB
$FFF8, $FFF9
$FFF6, $FFF7
$FFF4, $FFF5
$FFF2, $FFF3
$FFF0, $FFF1
$FFEE, $FFEF
$FFEC, $FFED
$FFEA, $FFEB
$FFE8, $FFE9
$FFE6, $FFE7
$FFE4, $FFE5
$FFE2, $FFE3
$FFE0, $FFE1
$FFDE, $FFDF
$FFDC, $FFDD
$FFDA, $FFDB
$FFD8, $FFD9
Clock Monitor fail reset
–
COP failure reset
–
Unimplemented instruction trap
SWI
–
None
–
XIRQ
None
–
IRQ
IRQCR (IRQEN)
CRGINT (RTIE)
TIE (C0I)
$F2
$F0
$EE
$EC
$EA
$E8
$E6
$E4
$E2
$E0
$DE
$DC
$DA
$D8
Real Time Interrupt
Enhanced Capture Timer channel 0
Enhanced Capture Timer channel 1
Enhanced Capture Timer channel 2
Enhanced Capture Timer channel 3
Enhanced Capture Timer channel 4
Enhanced Capture Timer channel 5
Enhanced Capture Timer channel 6
Enhanced Capture Timer channel 7
Enhanced Capture Timer overflow
Pulse accumulator A overflow
Pulse accumulator input edge
SPI0
TIE (C1I)
TIE (C2I)
TIE (C3I)
TIE (C4I)
TIE (C5I)
TIE (C6I)
TIE (C7I)
TSRC2 (TOF)
PACTL (PAOVI)
PACTL (PAI)
SP0CR1 (SPIE, SPTIE)
SC0CR2
(TIE, TCIE, RIE, ILIE)
SCI0
I-Bit
$D6
$FFD6, $FFD7
SC1CR2
(TIE, TCIE, RIE, ILIE)
SCI1
ATD0
I-Bit
I-Bit
$D4
$D2
$FFD4, $FFD5
$FFD2, $FFD3
ATD0CTL2 (ASCIE)
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ATD1
Port J
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
I-Bit
ATD1CTL2 (ASCIE)
PTJIF (PTJIE)
$D0
$CE
$CC
$CA
$C8
$C6
$C4
$C2
$C0
$BE
$BC
$BA
$B8
$B6
$B4
$B2
$B0
$AE
$AC
$AA
$A8
$FFD0, $FFD1
$FFCE, $FFCF
$FFCC, $FFCD
$FFCA, $FFCB
$FFC8, $FFC9
$FFC6, $FFC7
$FFC4, $FFC5
$FFC2, $FFC3
$FFC0, $FFC1
$FFBE, $FFBF
$FFBC, $FFBD
$FFBA, $FFBB
$FFB8, $FFB9
$FFB6, $FFB7
$FFB4, $FFB5
$FFB2, $FFB3
$FFB0, $FFB1
$FFAE, $FFAF
$FFAC, $FFAD
$FFAA, $FFAB
$FFA8, $FFA9
$FFA6, $FFA7
$FFA4, $FFA5
$FFA2, $FFA3
$FFA0, $FFA1
$FF9E, $FF9F
$FF9C, $FF9D
$FF9A, $FF9B
$FF98, $FF99
$FF96, $FF97
$FF94, $FF95
$FF92, $FF93
$FF90, $FF91
$FF8E, $FF8F
$FF8C, $FF8D
Port H
PTHIF(PTHIE)
Modulus Down Counter underflow
Pulse Accumulator B Overflow
CRG PLL lock
CRG Self Clock Mode
BDLC
MCCTL(MCZI)
PBCTL(PBOVI)
CRGINT(LOCKIE)
CRGINT (SCMIE)
DLCBCR1(IE)
IIC Bus
IBCR (IBIE)
SPI1
SP1CR1 (SPIE, SPTIE)
SP2CR1 (SPIE, SPTIE)
ECNFG (CCIE, CBEIE)
FCNFG (CCIE, CBEIE)
CAN0RIER (WUPIE)
CAN0RIER (CSCIE, OVRIE)
CAN0RIER (RXFIE)
SPI2
EEPROM
FLASH
CAN0 wake-up
CAN0 errors
CAN0 receive
CAN0 transmit
CAN1 wake-up
CAN1 errors
CAN1 receive
CAN1 transmit
I-Bit CAN0TIER (TXEIE2-TXEIE0)
I-Bit
I-Bit
I-Bit
CAN1RIER (WUPIE)
CAN1RIER (CSCIE, OVRIE)
CAN1RIER (RXFIE)
I-Bit CAN1TIER (TXEIE2-TXEIE0)
Reserved
CAN4 wake-up
CAN4 errors
I-Bit
I-Bit
I-Bit
CAN4RIER (WUPIE)
CAN4RIER (CSCIE, OVRIE)
CAN4RIER (RXFIE)
$96
$94
$92
$90
$8E
$8C
CAN4 receive
CAN4 transmit
I-Bit CAN4TIER (TXEIE2-TXEIE0)
Port P Interrupt
I-Bit
I-Bit
PTPIF (PTPIE)
PWM Emergency Shutdown
PWMSDN (PWMIE)
$FF80 to
$FF8B
Reserved
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5.3 Effects of Reset
When a reset occurs, MCU registers and control bits are changed to known start-up states. Refer to the
respective module Block User Guides for register reset states.
5.3.1 I/O pins
Refer to the HCS12 Core User Guides for mode dependent pin configuration of port A, B, E and K out of
reset.
Refer to the PIM Block User Guide for reset configurations of all peripheral module ports.
NOTE: For devices assembled in 80-pin QFP packages all non-bonded out pins should be
configured as outputs after reset in order to avoid current drawn from floating
inputs. Refer to Table 2-1 for affected pins.
5.3.2 Memory
Refer to Table 1-1 for locations of the memories depending on the operating mode after reset.
The RAM array is not automatically initialized out of reset.
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Section 6 HCS12 Core Block Description
6.1 CPU12 Block Description
Consult the CPU12 Reference Manual for information on the CPU.
When the CPU12 Reference Manual refers to cycles this is equivalent to Bus Clock Periods.
6.2 HCS12 Module Mapping Control (MMC) Block Description
Consult the MMC Block User Guide for information on the Module Mapping Control Block.
6.2.1 Device specific information
•
INITEE
– Reset state: $01
– Bits EE11-EE15 are writeable once in Normal and Emulation Mode
•
PPAGE
– Reset state : $00
– Register is writeable anytime in all modes
6.3 HCS12 Multiplexed External Bus Interface (MEBI) Block
Description
Consult the MEBI Block Guide for information on Multiplexed External Bus Interface.
6.3.1 Device specific information
•
PUCR
– Reset State : $90
6.4 HCS12 Interrupt (INT) Block description
Consult the INT Block guide for information on HCS12 Interrupt block.
6.5 HCS12 Background Debug (BDM) Block Description
Consult the BDM Block guide for information on HCS12 Background Debug block
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6.6 HCS12 Breakpoint (BKP) Block Description
Consult the BKP Block guide for information on HCS12 breakpoint block
Section 7 Clock and Reset Generator (CRG) Block
Description
Consult the CRG Block User Guide for information about the Clock and Reset Generator module.
7.1 Device-specific information
7.1.1 XCLKS
The XCLKS input signal is active low (see 2.3.13 PE7 / NOACC / XCLKS — Port E I/O Pin 7).
Section 8 Enhanced Capture Timer (ECT) Block
Description
Consult the ECT_16B8C Block User Guide for information about the Enhanced Capture Timer module
When the ECT_16B8C Block Guide refers to freeze mode this is equivalent to active BDM mode.
Section 9 Analog to Digital Converter (ATD) Block
Description
There are two Analog to Digital Converters (ATD1 and ATD0) implemented on the MC9S12DT256.
Consult the ATD_10B8C Block User Guide for information about each Analog to Digital Converter
module.When the ATD_10B8C Block Guide refers to freeze mode this is equivalent to active BDM mode.
Section 10 Inter-IC Bus (IIC) Block Description
Consult the IIC Block User Guide for information about the Inter-IC Bus module.
Section 11 Serial Communications Interface (SCI) Block
Description
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MC9S12DT256 Device User Guide — V03.03
There are two Serial Communications Interfaces (SCI1 and SCI0) implemented on the MC9S12DT256
device. Consult the SCI Block User Guide for information about each Serial Communications Interface
module.
Section 12 Serial Peripheral Interface (SPI) Block
Description
There are three Serial Peripheral Interfaces(SPI2, SPI1 and SPI0) implemented on MC9S12DT256.
Consult the SPI Block User Guide for information about each Serial Peripheral Interface module.
Section 13 J1850 (BDLC) Block Description
Consult the BDLC Block User Guide for information about the J1850 module.
Section 14 Pulse Width Modulator (PWM) Block
Description
Consult the PWM_8B8C Block User Guide for information about the Pulse Width Modulator module.
When the PWM _8B8CBlock Guide refers to freeze mode this is equivalent to active BDM mode
Section 15 Flash EEPROM 256K Block Description
The "S12 LRAE" is a generic Load RAM and Execute (LRAE) program which will be programmed into
the flash memory of this device during manufacture. This LRAE program will provide greater
programming flexibility to the end users by allowing the device to be programmed directly using CAN or
SCI after it is assembled on the PCB. Use of the LRAE program is at the discretion of the end user and, if
not required, it must simply be erased prior to flash programming. For more details of the S12 LRAE and
its implementation, please see the S12 LREA Application Note (AN2546/D).
It is planned that most HC9S12 devices manufactured after Q1 of 2004 will be shipped with the S12 LRAE
programmed in the Flash. Exact details of the changeover (i.e. blank to programmed) for each product will
be communicated in advance via GPCN and will be traceable by the customer via datecode marking on
the device.
Please contact Motorola SPS Sales if you have any additional questions.
Consult the FTS256K Block User Guide for information about the flash module.
Section 16 EEPROM 4K Block Description
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MC9S12DT256 Device User Guide — V03.03
Consult the EETS4K Block User Guide for information about the EEPROM module.
Section 17 RAM Block Description
This module supports single-cycle misaligned word accesses.
Section 18 MSCAN Block Description
There are three MSCAN modules (CAN4, CAN1 and CAN0) implemented on the MC9S12DT256.
Consult the MSCAN Block User Guide for information about the Motorola Scalable CAN Module.
Section 19 Port Integration Module (PIM) Block Description
Consult the PIM_9DP256 Block User Guide for information about the Port Integration Module.
Section 20 Voltage Regulator (VREG) Block Description
Consult the VREG Block User Guide for information about the dual output linear voltage regulator.
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Component
Purpose
Type
Value
100 .. 220nF
100 .. 220nF
100nF
C1
C2
C3
C4
C5
C6
C7
C8
VDD1 filter cap
VDD2 filter cap
VDDA filter cap
VDDR filter cap
VDDPLL filter cap
VDDX filter cap
OSC load cap
OSC load cap
PLL loop filter cap
ceramic X7R
ceramic X7R
ceramic X7R
X7R/tantalum
ceramic X7R
X7R/tantalum
>=100nF
100nF
>=100nF
C9 / C
S
See PLL specification chapter
C10 / C
PLL loop filter cap
DC cutoff cap
P
Colpitts mode only, if recommended by
quartz manufacturer
C11 / C
DC
R1 / R
PLL loop filter res
See PLL Specification chapter
R2 / R
R3 / R
Q1
B
Pierce mode only
S
Quartz
The PCB must be carefully laid out to ensure proper operation of the voltage regulator as well as of the
MCU itself. The following rules must be observed:
•
Every supply pair must be decoupled by a ceramic capacitor connected as near as possible to the
corresponding pins (C1 – C6).
•
•
•
•
Central point of the ground star should be the VSSR pin.
Use low ohmic low inductance connections between VSS1, VSS2 and VSSR.
VSSPLL must be directly connected to VSSR.
Keep traces of VSSPLL, EXTAL and XTAL as short as possible and occupied board area for C7,
C8, C11 and Q1 as small as possible.
•
•
Do not place other signals or supplies underneath area occupied by C7, C8, C10 and Q1 and the
connection area to the MCU.
Central power input should be fed in at the VDDA/VSSA pins.
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Figure 20-1 Recommended PCB Layout for 112LQFP Colpitts Oscillator
VSSA
C3
VSSX
VDDA
VDD1
VSS1
C1
VSS2
C2
VDD2
VSSR
VDDR
Q1
VSSPLL
VDDPLL
R1
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Figure 20-2 Recommended PCB Layout for 80QFP Colpitts Oscillator
C3
VSSA
VSSX
VDDA
VDD1
C1
VSS2
C2
VSS1
VDD2
VSSR
VDDR
Q1
VSSPLL
VDDPLL
R1
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Figure 20-3 Recommended PCB Layout for 112LQFP Pierce Oscillator
VSSA
C3
VSSX
VDDA
VDD1
VSS1
C1
VSS2
C2
VDD2
VSSR
VDDR
VSSPLL
R3
R2
Q1
VDDPLL
R1
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Figure 20-4 Recommended PCB Layout for 80QFP Pierce Oscillator
C3
VSSA
VSSX
VDDA
VDD1
C1
VSS2
C2
VSS1
VDD2
VSSPLL
VSSR
R3
VDDR
R2
Q1
VDDPLL
R1
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Appendix A Electrical Characteristics
A.1 General
NOTE: The electrical characteristics given in this section are preliminary and should be
used as a guide only. Values cannot be guaranteed by Motorola and are subject to
change without notice.
This supplement contains the most accurate electrical information for the MC9S12DT256 microcontroller
available at the time of publication. The information should be considered PRELIMINARY and is subject
to change.
This introduction is intended to give an overview on several common topics like power supply, current
injection etc.
A.1.1 Parameter Classification
The electrical parameters shown in this supplement are guaranteed by various methods. To give the
customer a better understanding the following classification is used and the parameters are tagged
accordingly in the tables where appropriate.
NOTE: This classification is shown in the column labeled “C” in the parameter tables
where appropriate.
P:
Those parameters are guaranteed during production testing on each individual device.
C:
Those parameters are achieved by the design characterization by measuring a statistically relevant
sample size across process variations.
T:
Those parameters are achieved by design characterization on a small sample size from typical devices
under typical conditions unless otherwise noted. All values shown in the typical column are within
this category.
D:
Those parameters are derived mainly from simulations.
A.1.2 Power Supply
The MC9S12DT256 utilizes several pins to supply power to the I/O ports, A/D converter, oscillator and
PLL as well as the digital core.
The VDDA, VSSA pair supplies the A/D converter and the resistor ladder of the internal voltage regulator.
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The VDDX, VSSX, VDDR and VSSR pairs supply the I/O pins, VDDR supplies also the internal voltage
regulator.
VDD1, VSS1, VDD2 and VSS2 are the supply pins for the digital logic, VDDPLL, VSSPLL supply the
oscillator and the PLL.
VSS1 and VSS2 are internally connected by metal.
VDDA, VDDX, VDDR as well as VSSA, VSSX, VSSR are connected by anti-parallel diodes for ESD
protection.
NOTE: In the following context VDD5 is used for either VDDA, VDDR and VDDX; VSS5
is used for either VSSA, VSSR and VSSX unless otherwise noted.
IDD5 denotes the sum of the currents flowing into the VDDA, VDDX and VDDR
pins.
VDD is used for VDD1, VDD2 and VDDPLL, VSS is used for VSS1, VSS2 and
VSSPLL.
IDD is used for the sum of the currents flowing into VDD1 and VDD2.
A.1.3 Pins
There are four groups of functional pins.
A.1.3.1 5V I/O pins
Those I/O pins have a nominal level of 5V. This class of pins is comprised of all port I/O pins, the analog
inputs, BKGD and the RESET pins.The internal structure of all those pins is identical, however some of
the functionality may be disabled. E.g. for the analog inputs the output drivers, pull-up and pull-down
resistors are disabled permanently.
A.1.3.2 Analog Reference
This group is made up by the VRH and VRL pins.
A.1.3.3 Oscillator
The pins XFC, EXTAL, XTAL dedicated to the oscillator have a nominal 2.5V level. They are supplied
by VDDPLL.
A.1.3.4 TEST
This pin is used for production testing only.
A.1.3.5 VREGEN
This pin is used to enable the on chip voltage regulator.
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A.1.4 Current Injection
Power supply must maintain regulation within operating V
or V range during instantaneous and
DD
DD5
operating maximum current conditions. If positive injection current (V > V
) is greater than I
, the
in
DD5
DD5
injection current may flow out of VDD5 and could result in external power supply going out of regulation.
Ensure external VDD5 load will shunt current greater than maximum injection current. This will be the
greatest risk when the MCU is not consuming power; e.g. if no system clock is present, or if clock rate is
very low which would reduce overall power consumption.
A.1.5 Absolute Maximum Ratings
Absolute maximum ratings are stress ratings only. A functional operation under or outside those maxima
is not guaranteed. Stress beyond those limits may affect the reliability or cause permanent damage of the
device.
This device contains circuitry protecting against damage due to high static voltage or electrical fields;
however, it is advised that normal precautions be taken to avoid application of any voltages higher than
maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused
inputs are tied to an appropriate logic voltage level (e.g., either V
or V
).
SS5
DD5
1
Table A-1 Absolute Maximum Ratings
Num
Rating
Symbol
Min
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
Max
6.0
3.0
3.0
0.3
0.3
6.0
6.0
3.0
10.0
Unit
V
VDD5
1
2
3
4
5
6
7
8
9
I/O, Regulator and Analog Supply Voltage
Digital Logic Supply Voltage 2
VDD
V
PLL Supply Voltage 2
VDDPLL
V
∆
Voltage difference VDDX to VDDR and VDDA
Voltage difference VSSX to VSSR and VSSA
Digital I/O Input Voltage
V
VDDX
∆
V
VSSX
VIN
VRH, VRL
VILV
V
Analog Reference
V
XFC, EXTAL, XTAL inputs
TEST input
V
VTEST
V
Instantaneous Maximum Current
Single pin limit for all digital I/O pins 3
ID
10
11
12
-25
-25
+25
+25
mA
mA
Instantaneous Maximum Current
Single pin limit for XFC, EXTAL, XTAL4
IDL
Instantaneous Maximum Current
Single pin limit for TEST 5
IDT
-0.25
– 65
0
mA
Tstg
13
Storage Temperature Range
155
°C
NOTES:
1. Beyond absolute maximum ratings device might be damaged.
91
MC9S12DT256 Device User Guide — V03.03
2. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply.
The absolute maximum ratings apply when the device is powered from an external source.
3. All digital I/O pins are internally clamped to VSSX and VDDX, VSSR and VDDR or VSSA and VDDA
.
4. Those pins are internally clamped to VSSPLL and VDDPLL
.
5. This pin is clamped low to VSSR, but not clamped high. This pin must be tied low in applications.
A.1.6 ESD Protection and Latch-up Immunity
All ESD testing is in conformity with CDF-AEC-Q100 Stress test qualification for Automotive Grade
Integrated Circuits. During the device qualification ESD stresses were performed for the Human Body
Model (HBM), the Machine Model (MM) and the Charge Device Model.
A device will be defined as a failure if after exposure to ESD pulses the device no longer meets the device
specification. Complete DC parametric and functional testing is performed per the applicable device
specification at room temperature followed by hot temperature, unless specified otherwise in the device
specification.
Table A-2 ESD and Latch-up Test Conditions
Model
Description
Symbol
Value
1500
100
Unit
Ohm
pF
Series Resistance
R1
C
Storage Capacitance
Human Body
Number of Pulse per pin
positive
negative
-
3
3
-
Series Resistance
R1
C
0
Ohm
pF
Storage Capacitance
200
Machine
Latch-up
Number of Pulse per pin
positive
negative
-
3
3
-
Minimum input voltage limit
Maximum input voltage limit
-2.5
7.5
V
V
Table A-3 ESD and Latch-Up Protection Characteristics
Num C
Rating
Symbol
VHBM
Min
2000
200
Max
Unit
1
2
3
C Human Body Model (HBM)
-
-
-
V
V
V
VMM
C Machine Model (MM)
VCDM
C Charge Device Model (CDM)
Latch-up Current at TA = 125°C
500
ILAT
4
5
C
+100
-100
-
-
mA
mA
positive
negative
Latch-up Current at TA = 27°C
ILAT
C
+200
-200
positive
negative
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MC9S12DT256 Device User Guide — V03.03
A.1.7 Operating Conditions
This chapter describes the operating conditions of the device. Unless otherwise noted those conditions
apply to all the following data.
NOTE: Please refer to the temperature rating of the device (C, V, M) with regards to the
ambient temperature T and the junction temperature T . For power dissipation
A
J
calculations refer to Section A.1.8 Power Dissipation and Thermal
Characteristics.
Table A-4 Operating Conditions
Rating
Symbol
Min
4.5
Typ
5
Max
5.25
2.75
2.75
0.1
Unit
V
VDD5
I/O, Regulator and Analog Supply Voltage
Digital Logic Supply Voltage 1
VDD
2.35
2.35
-0.1
-0.1
0.5
2.5
2.5
0
V
PLL Supply Voltage 1
VDDPLL
V
∆
Voltage Difference VDDX to VDDR and VDDA
Voltage Difference VSSX to VSSR and VSSA
Oscillator
V
VDDX
∆
0
0.1
V
VSSX
fosc
fbus
-
16
MHz
MHz
Bus Frequency
0.5
-
25
MC9S12DT256C
TJ
TA
Operating Junction Temperature Range
-40
-40
-
100
85
°C
°C
Operating Ambient Temperature Range 2
MC9S12DT256V
27
TJ
TA
Operating Junction Temperature Range
-40
-40
-
120
105
°C
°C
Operating Ambient Temperature Range 2
MC9S12DT256M
27
TJ
TA
Operating Junction Temperature Range
-40
-40
-
140
125
°C
°C
Operating Ambient Temperature Range 2
27
NOTES:
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The
absolute maximum ratings apply when this regulator is disabled and the device is powered from an external
source.
2. Please refer to Section A.1.8 Power Dissipation and Thermal Characteristics for more details about the rela-
tion between ambient temperature TA and device junction temperature TJ.
A.1.8 Power Dissipation and Thermal Characteristics
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded. The average chip-junction temperature (T ) in °C can be
J
obtained from:
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MC9S12DT256 Device User Guide — V03.03
T = T + (P • Θ
)
J
A
D
JA
T = Junction Temperature, [°C]
J
T
= Ambient Temperature, [°C]
A
D
P
= Total Chip Power Dissipation, [W]
Θ
= Package Thermal Resistance, [°C/W]
JA
The total power dissipation can be calculated from:
= P
P
+ P
D
INT
IO
P
= Chip Internal Power Dissipation, [W]
INT
Two cases with internal voltage regulator enabled and disabled must be considered:
1. Internal Voltage Regulator disabled
P
= I
V
+ I
V
+ I
V
INT
DD DD DDPLL DDPLL DDA DDA
2
P
=
R
I
∑
IO
DSON IO
i
i
P
is the sum of all output currents on I/O ports associated with VDDX and VDDR.
IO
For R
is valid:
DSON
V
OL
R
= ----------- ;for outputs driven low
DSON
V
I
OL
respectively
– V
DD5
OH
R
= ----------------------------------- ;for outputs driven high
DSON
I
OH
2. Internal voltage regulator enabled
= I
P
V
+ I
V
INT
DDR DDR DDA DDA
I
is the current shown in Table A-7 and not the overall current flowing into VDDR, which
DDR
additionally contains the current flowing into the external loads with output high.
2
P
=
R
I
∑
IO
DSON IO
i
i
P
is the sum of all output currents on I/O ports associated with VDDX and VDDR.
IO
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MC9S12DT256 Device User Guide — V03.03
1
Table A-5 Thermal Package Characteristics
Num C
Rating
Symbol
Min
Typ
Max
Unit
Thermal Resistance LQFP112, single sided PCB2
oC/W
θJA
1
2
3
4
T
-
-
54
Thermal Resistance LQFP112, double sided PCB
with 2 internal planes3
oC/W
oC/W
oC/W
θJA
θJA
θJA
T
-
-
-
-
-
-
41
51
41
T Thermal Resistance LQFP 80, single sided PCB
Thermal Resistance LQFP 80, double sided PCB
with 2 internal planes
T
NOTES:
1. The values for thermal resistance are achieved by package simulations
2. PC Board according to EIA/JEDEC Standard 51-2
3. PC Board according to EIA/JEDEC Standard 51-7
A.1.9 I/O Characteristics
This section describes the characteristics of all 5V I/O pins. All parameters are not always applicable, e.g.
not all pins feature pull up/down resistances.
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MC9S12DT256 Device User Guide — V03.03
Table A-6 5V I/O Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
-
Unit
V
VIH
0.65*VDD5
1
2
P Input High Voltage
-
VIH
VIL
T Input High Voltage
P Input Low Voltage
T Input Low Voltage
C Input Hysteresis
-
-
VDD5 + 0.3
0.35*VDD5
V
-
-
-
V
VIL
VSS5 - 0.3
-
V
VHYS
3
4
250
mV
Input Leakage Current (pins in high impedance input
mode)1
Vin = VDD5 or VSS5
Iin
P
C
–2.5
-
-
2.5
-
µA
Output High Voltage (pins in output mode)
VOH
VDD5 – 0.8
5
V
Partial Drive I
OH
= –2mA
Output High Voltage (pins in output mode)
Full Drive IOH = –10mA
VOH
VOL
VOL
VDD5 – 0.8
6
7
P
C
-
-
-
V
V
Output Low Voltage (pins in output mode)
Partial Drive IOL = +2mA
-
-
0.8
Output Low Voltage (pins in output mode)
8
P
P
C
P
C
-
-
-
-
0.8
-130
-
V
Full Drive I
OL
= +10mA
Internal Pull Up Device Current,
tested at VIL Max.
IPUL
IPUH
IPDH
9
-
-10
-
µA
µA
µA
Internal Pull Up Device Current,
tested at VIH Min.
10
11
12
Internal Pull Down Device Current,
tested at VIH Min.
130
Internal Pull Down Device Current,
tested at VIL Max.
IPDL
Cin
10
-
-
-
µA
13 D Input Capacitance
Injection current2
6
pF
IICS
IICP
14
T
-2.5
-25
-
2.5
25
mA
Single Pin limit
Total Device Limit. Sum of all injected currents
Port H, J, P Interrupt Input Pulse filtered3
Port H, J, P Interrupt Input Pulse passed3
tPULSE
tPULSE
15
16
P
P
3
µs
µs
10
NOTES:
1. Maximum leakage current occurs at maximum operating temperature. Current decreases by approximately one-half for
each 8 C to 12 C in the temperature range from 50 C to 125 C.
2. Refer to Section A.1.4 Current Injection, for more details
3. Parameter only applies in STOP or Pseudo STOP mode.
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MC9S12DT256 Device User Guide — V03.03
A.1.10 Supply Currents
This section describes the current consumption characteristics of the device as well as the conditions for
the measurements.
A.1.10.1 Measurement Conditions
All measurements are without output loads. Unless otherwise noted the currents are measured in single
chip mode, internal voltage regulator enabled and at 25MHz bus frequency using a 4MHz oscillator in
Colpitts mode. Production testing is performed using a square wave signal at the EXTAL input.
A.1.10.2 Additional Remarks
In expanded modes the currents flowing in the system are highly dependent on the load at the address, data
and control signals as well as on the duty cycle of those signals. No generally applicable numbers can be
97
MC9S12DT256 Device User Guide — V03.03
given. A very good estimate is to take the single chip currents and add the currents due to the external
loads.
Table A-7 Supply Current Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
Run supply currents
1
P
mA
IDD5
Single Chip, Internal regulator enabled
65
Wait Supply current
All modules enabled, PLL on
only RTI enabled 1
IDDW
2
P
P
40
5
mA
Pseudo Stop Current (RTI and COP disabled) 1, 2
-40°C
27°C
70°C
C
P
C
C
P
C
P
C
P
370
400
450
550
600
650
800
850
1200
500
85°C
IDDPS
3
4
5
µA
"C" Temp Option 100°C
105°C
"V" Temp Option 120°C
125°C
1600
2100
5000
"M" Temp Option 140°C
Pseudo Stop Current (RTI and COP enabled) 1, 2
C
C
C
C
C
C
C
570
600
650
750
850
-40°C
27°C
70°C
IDDPS
µA
85°C
105°C
125°C
140°C
1200
1500
Stop Current 2
C
P
C
C
P
C
P
C
P
12
25
-40°C
27°C
70°C
100
100
130
160
200
350
400
600
85°C
IDDS
µA
1200
1700
5000
"C" Temp Option 100°C
105°C
"V" Temp Option 120°C
125°C
"M" Temp Option 140°C
NOTES:
1. PLL off
2. At those low power dissipation levels TJ = TA can be assumed
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MC9S12DT256 Device User Guide — V03.03
A.2 ATD Characteristics
This section describes the characteristics of the analog to digital converter.
A.2.1 ATD Operating Characteristics
The Table A-8 shows conditions under which the ATD operates.
The following constraints exist to obtain full-scale, full range results:
V
≤ V ≤ V ≤ V ≤ V
. This constraint exists since the sample buffer amplifier can not drive
SSA
RL
IN
RH
DDA
beyond the power supply levels that it ties to. If the input level goes outside of this range it will effectively
be clipped.
Table A-8 ATD Operating Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
/2
Unit
Reference Potential
1
D
Low
High
V
V
V
V
V
RL
SSA
DDA
V
V
/2
V
RH
DDA
DDA
Differential Reference Voltage1
2
3
C
V
-V
4.50
0.5
5.00
5.25
2.0
V
RH RL
D ATD Clock Frequency
f
MHz
ATDCLK
ATD 10-Bit Conversion Period
D
Clock Cycles2
4
5
N
T
14
7
28
14
Cycles
µs
CONV10
CONV10
Conv, Time at 2.0MHz ATD Clock fATDCLK
ATD 8-Bit Conversion Period
Clock Cycles2
D
N
T
12
6
26
13
Cycles
µs
CONV8
CONV8
Conv, Time at 2.0MHz ATD Clock fATDCLK
Recovery Time (VDDA=5.0 Volts)
6
7
8
D
P
P
t
20
µs
REC
Reference Supply current 2 ATD blocks on
Reference Supply current 1 ATD block on
I
I
0.750
0.375
mA
mA
REF
REF
NOTES:
1. Full accuracy is not guaranteed when differential voltage is less than 4.50V
2. The minimum time assumes a final sample period of 2 ATD clocks cycles while the maximum time assumes a final sample
period of 16 ATD clocks.
A.2.2 Factors influencing accuracy
Three factors - source resistance, source capacitance and current injection - have an influence on the
accuracy of the ATD.
A.2.2.1 Source Resistance:
Due to the input pin leakage current as specified in Table A-6 in conjunction with the source resistance
there will be a voltage drop from the signal source to the ATD input. The maximum source resistance R
S
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MC9S12DT256 Device User Guide — V03.03
specifies results in an error of less than 1/2 LSB (2.5mV) at the maximum leakage current. If device or
operating conditions are less than worst case or leakage-induced error is acceptable, larger values of source
resistance is allowed.
A.2.2.2 Source Capacitance
When sampling an additional internal capacitor is switched to the input. This can cause a voltage drop due
to charge sharing with the external and the pin capacitance. For a maximum sampling error of the input
voltage ≤ 1LSB, then the external filter capacitor, C ≥ 1024 * (C - C ).
f
INS
INN
A.2.2.3 Current Injection
There are two cases to consider.
1. A current is injected into the channel being converted. The channel being stressed has conversion
values of $3FF ($FF in 8-bit mode) for analog inputs greater than V and $000 for values less than
RH
V
unless the current is higher than specified as disruptive condition.
RL
2. Current is injected into pins in the neighborhood of the channel being converted. A portion of this
current is picked up by the channel (coupling ratio K), This additional current impacts the accuracy
of the conversion depending on the source resistance.
The additional input voltage error on the converted channel can be calculated as V
= K * R *
ERR
S
I
, with I being the sum of the currents injected into the two pins adjacent to the converted
INJ
INJ
channel.
Table A-9 ATD Electrical Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
RS
1
C Max input Source Resistance
-
-
1
KΩ
Total Input Capacitance
T Non Sampling
Sampling
CINN
CINS
2
10
22
pF
INA
Kp
Kn
3
4
5
C Disruptive Analog Input Current
-2.5
2.5
10-4
10-2
mA
A/A
A/A
C Coupling Ratio positive current injection
C Coupling Ratio negative current injection
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MC9S12DT256 Device User Guide — V03.03
A.2.3 ATD accuracy
Table A-10 specifies the ATD conversion performance excluding any errors due to current injection,
input capacitance and source resistance.
Table A-10 ATD Conversion Performance
Conditions are shown in Table A-4 unless otherwise noted
V
REF = VRH - VRL = 5.12V. Resulting to one 8 bit count = 20mV and one 10 bit count = 5mV
f
= 2.0MHz
ATDCLK
Num C
Rating
Symbol
LSB
DNL
INL
Min
Typ
Max
Unit
mV
1
2
3
4
5
6
7
8
P 10-Bit Resolution
5
P 10-Bit Differential Nonlinearity
P 10-Bit Integral Nonlinearity
–1
–2.5
-3
1
2.5
3
Counts
Counts
Counts
mV
±1.5
±2.0
20
10-Bit Absolute Error1
P
AE
P 8-Bit Resolution
LSB
DNL
INL
P 8-Bit Differential Nonlinearity
P 8-Bit Integral Nonlinearity
–0.5
–1.0
-1.5
0.5
1.0
1.5
Counts
Counts
Counts
±0.5
±1.0
8-Bit Absolute Error1
P
AE
NOTES:
1. These values include the quantization error which is inherently 1/2 count for any A/D converter.
For the following definitions see also Figure A-1.
Differential Non-Linearity (DNL) is defined as the difference between two adjacent switching steps.
V – V
i
i – 1
DNL(i) =
– 1
------------------------
1LSB
The Integral Non-Linearity (INL) is defined as the sum of all DNLs:
n
V – V
n
0
-------------------
1LSB
INL(n) =
DNL(i) =
– n
∑
i = 1
101
MC9S12DT256 Device User Guide — V03.03
DNL
10-Bit Absolute Error Boundary
LSB
V
V
i
i-1
$3FF
$3FE
$3FD
$3FC
$3FB
$3FA
$3F9
$3F8
$3F7
$3F6
$3F5
$3F4
$3F3
8-Bit Absolute Error Boundary
$FF
$FE
$FD
2
9
8
7
6
5
4
3
2
1
0
Ideal Transfer Curve
10-Bit Transfer Curve
1
8-Bit Transfer Curve
5
10
15
20
25
30
35
40
50
5055 5060 5065 5070 5075 5080 5085 5090 5095 5100 5105 5110 5115 5120
Vin
mV
Figure A-1 ATD Accuracy Definitions
NOTE: Figure A-1 shows only definitions, for specification values refer to Table A-10.
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MC9S12DT256 Device User Guide V03.03
A.3 NVM, Flash and EEPROM
NOTE: Unless otherwise noted the abbreviation NVM (Non Volatile Memory) is used for
both Flash and EEPROM.
A.3.1 NVM timing
The time base for all NVM program or erase operations is derived from the oscillator. A minimum
oscillator frequency f
is required for performing program or erase operations. The NVM modules
NVMOSC
do not have any means to monitor the frequency and will not prevent program or erase operation at
frequencies above or below the specified minimum. Attempting to program or erase the NVM modules at
a lower frequency a full program or erase transition is not assured.
The Flash and EEPROM program and erase operations are timed using a clock derived from the oscillator
using the FCLKDIV and ECLKDIV registers respectively. The frequency of this clock must be set within
the limits specified as f
.
NVMOP
The minimum program and erase times shown in Table A-11 are calculated for maximum f
and
NVMOP
maximum f . The maximum times are calculated for minimum f
and a f of 2MHz.
bus
NVMOP
bus
A.3.1.1 Single Word Programming
The programming time for single word programming is dependant on the bus frequency as a well as on
the frequency f and can be calculated according to the following formula.
NVMOP
1
1
t
= 9
+ 25
---------------------
----------
swpgm
f
f
NVMOP
bus
A.3.1.2 Burst Programming
This applies only to the Flash where up to 32 words in a row can be programmed consecutively using burst
programming by keeping the command pipeline filled. The time to program a consecutive word can be
calculated as:
1
1
t
= 4
+ 9
---------------------
----------
bwpgm
f
f
NVMOP
bus
The time to program a whole row is:
t
= t
+ 31 t
brpgm
swpgm
bwpgm
Burst programming is more than 2 times faster than single word programming.
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MC9S12DT256 Device User Guide V03.03
A.3.1.3 Sector Erase
Erasing a 512 byte Flash sector or a 4 byte EEPROM sector takes:
1
t
≈ 4000
---------------------
era
f
NVMOP
The setup time can be ignored for this operation.
A.3.1.4 Mass Erase
Erasing a NVM block takes:
1
t
≈ 20000
---------------------
mass
f
NVMOP
The setup time can be ignored for this operation.
A.3.1.5 Blank Check
The time it takes to perform a blank check on the Flash or EEPROM is dependant on the location of the
first non-blank word starting at relative address zero. It takes one bus cycle per word to verify plus a setup
of the command.
t
≈ location t
+ 10 t
check
cyc
cyc
Table A-11 NVM Timing Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
fNVMOSC
fNVMBUS
fNVMOP
tswpgm
Min
0.5
1
Typ
Max
Unit
MHz
MHz
kHz
µs
50 1
1
2
3
4
5
6
7
8
9
D External Oscillator Clock (MC9S12DT256C< V, M)
D Bus frequency for Programming or Erase Operations
D Operating Frequency
150
200
74.5 3
31 3
46 2
20.4 2
1331.2 2
20 5
P Single Word Programming Time
Flash Burst Programming consecutive word 4
D
tbwpgm
tbrpgm
tera
µs
Flash Burst Programming Time for 32 Words 4
D
2027.5 3
26.7 3
133 3
µs
P Sector Erase Time
ms
100 5
11 6
tmass
tcheck
tcheck
P Mass Erase Time
ms
65546 7
20587
tcyc
tcyc
D Blank Check Time Flash per block
11 6
10 D Blank Check Time EEPROM per block
NOTES:
1. Restrictions for oscillator in crystal mode apply!
2. Minimum Programming times are achieved under maximum NVM operating frequency fNVMOP and maximum bus frequency
fbus
.
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MC9S12DT256 Device User Guide V03.03
3. Maximum Erase and Programming times are achieved under particular combinations of fNVMOP and bus frequency fbus
Refer to formulae in Sections A.3.1.1 - A.3.1.4 for guidance.
.
4. Burst Programming operations are not applicable to EEPROM
5. Minimum Erase times are achieved under maximum NVM operating frequency fNVMOP
.
6. Minimum time, if first word in the array is not blank
7. Maximum time to complete check on an erased block
A.3.2 NVM Reliability
The reliability of the NVM blocks is guaranteed by stress test during qualification, constant process
monitors and burn-in to screen early life failures.
The failure rates for data retention and program/erase cycling are specified at the operating conditions
noted.
The program/erase cycle count on the sector is incremented every time a sector or mass erase event is
executed.
NOTE: All values shown in Table A-12 are target values and subject to further extensive
characterization.
Table A-12 NVM Reliability Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
tNVMRET
nFLPE
Min
15
Typ
Max
Unit
Years
Cycles
Data Retention at an average junction temperature of
1
2
3
C
TJavg = 70°C
C Flash number of Program/Erase cycles
EEPROM number of Program/Erase cycles
1000
10,000
nEEPE
C
10,000
Cycles
Cycles
(–40°C ≤ TJ ≤ 0°C)
EEPROM number of Program/Erase cycles
nEEPE
4
C
100,000
(0°C < TJ ≤ 140°C)
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A.4 Voltage Regulator
The on-chip voltage regulator is intended to supply the internal logic and oscillator circuits. No external
DC load is allowed.
Table A-13 Voltage Regulator Recommended Load Capacitances
Rating
Load Capacitance on VDD1, 2
Load Capacitance on VDDPLL
Symbol
CLVDD
Min
Typ
220
220
Max
Unit
nF
CLVDDfcPLL
nF
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A.5 Reset, Oscillator and PLL
This section summarizes the electrical characteristics of the various startup scenarios for Oscillator and
Phase-Locked-Loop (PLL).
A.5.1 Startup
Table A-14 summarizes several startup characteristics explained in this section. Detailed description of
the startup behavior can be found in the Clock and Reset Generator (CRG) Block Guide.
Table A-14 Startup Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
VPORR
VPORA
PWRSTL
nRST
Min
Typ
Max
Unit
V
1
2
3
4
5
6
T POR release level
T POR assert level
2.07
0.97
2
V
tosc
nosc
D Reset input pulse width, minimum input time
D Startup from Reset
192
20
196
14
PWIRQ
tWRS
D Interrupt pulse width, IRQ edge-sensitive mode
D Wait recovery startup time
ns
tcyc
A.5.1.1 POR
The release level V
and the assert level V
are derived from the V Supply. They are also valid
PORA DD
PORR
if the device is powered externally. After releasing the POR reset the oscillator and the clock quality check
are started. If after a time t no valid oscillation is detected, the MCU will start using the internal self
CQOUT
clock. The fastest startup time possible is given by n
.
uposc
A.5.1.2 SRAM Data Retention
Provided an appropriate external reset signal is applied to the MCU, preventing the CPU from executing
code when VDD5 is out of specification limits, the SRAM contents integrity is guaranteed if after the reset
the PORF bit in the CRG Flags Register has not been set.
A.5.1.3 External Reset
When external reset is asserted for a time greater than PW
the CRG module generates an internal
RSTL
reset, and the CPU starts fetching the reset vector without doing a clock quality check, if there was an
oscillation before reset.
A.5.1.4 Stop Recovery
Out of STOP the controller can be woken up by an external interrupt. A clock quality check as after POR
is performed before releasing the clocks to the system.
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MC9S12DT256 Device User Guide — V03.03
A.5.1.5 Pseudo Stop and Wait Recovery
The recovery from Pseudo STOP and Wait are essentially the same since the oscillator was not stopped in
both modes. The controller can be woken up by internal or external interrupts. After t the CPU starts
wrs
fetching the interrupt vector.
A.5.2 Oscillator
The device features an internal Colpitts and Pierce oscillator. The selection of Colpitts oscillator or Pierce
oscillator/external clock depends on the XCLKS signal which is sampled during reset.By asserting the
XCLKS input during reset this oscillator can be bypassed allowing the input of a square wave. Before
asserting the oscillator to the internal system clocks the quality of the oscillation is checked for each start
from either power-on, STOP or oscillator fail. t
specifies the maximum time before switching to the
CQOUT
internal self clock mode after POR or STOP if a proper oscillation is not detected. The quality check also
determines the minimum oscillator start-up time t . The device also features a clock monitor. A
UPOSC
Clock Monitor Failure is asserted if the frequency of the incoming clock signal is below the Assert
Frequency f
CMFA.
Table A-15 Oscillator Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
Min
0.5
Typ
Max
16
Unit
MHz
MHz
µA
fOSC
1a C Crystal oscillator range (Colpitts)
Crystal oscillator range (Pierce) 1(4)
fOSC
iOSC
1b
2
C
0.5
40
P Startup Current
100
82
1003
2.5
tUPOSC
tCQOUT
fCMFA
fEXT
3
C Oscillator start-up time (Colpitts)
D Clock Quality check time-out
P Clock Monitor Failure Assert Frequency
ms
s
4
0.45
50
5
100
200
50
KHz
MHz
ns
External square wave input frequency 4
P
6
0.5
9.5
9.5
tEXTL
tEXTH
tEXTR
tEXTF
CIN
7
D External square wave pulse width low
D External square wave pulse width high
D External square wave rise time
8
ns
9
1
1
ns
10 D External square wave fall time
ns
11 D Input Capacitance (EXTAL, XTAL pins)
DC Operating Bias in Colpitts Configuration on
7
pF
VDCBIAS
12
C
1.1
V
EXTAL Pin
NOTES:
1. Depending on the crystal a damping series resistor might be necessary
2. fosc = 4MHz, C = 22pF.
3. Maximum value is for extreme cases using high Q, low frequency crystals
4. XCLKS =0 during reset
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MC9S12DT256 Device User Guide — V03.03
A.5.3 Phase Locked Loop
The oscillator provides the reference clock for the PLL. The PLL´s Voltage Controlled Oscillator (VCO)
is also the system clock source in self clock mode.
A.5.3.1 XFC Component Selection
This section describes the selection of the XFC components to achieve a good filter characteristics.
C
p
VDDPLL
R
C
XFC Pin
s
Phase
VCO
f
f
vco
f
1
ref
osc
∆
K
K
Φ
V
refdv+1
Detector
f
cmp
Loop Divider
1
1
2
synr+1
Figure A-2 Basic PLL functional diagram
The following procedure can be used to calculate the resistance and capacitance values using typical
values for K , f and i from Table A-16.
1
1
ch
The grey boxes show the calculation for f
= 50MHz and f = 1MHz. E.g., these frequencies are used
ref
VCO
for f
= 4MHz and a 25MHz bus clock.
OSC
The VCO Gain at the desired VCO frequency is approximated by:
(f1 – fvco
-----------------------
K1 1V
)
(60 – 50)
-----------------------
–100
K = K e
= -90.48MHz/V
= –100 e
V
1
The phase detector relationship is given by:
K = – i
K
= 316.7Hz/Ω
Φ
ch
V
i is the current in tracking mode.
ch
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MC9S12DT256 Device User Guide — V03.03
The loop bandwidth f should be chosen to fulfill the Gardner’s stability criteria by at least a factor of 10,
C
typical values are 50. ζ = 0.9 ensures a good transient response.
2 ζ f
f
ref
1
ref
f < ------------------------------------------
→ f < ------------- ;(ζ = 0.9)
------
10
C
C
4 10
fC < 25kHz
2
π
ζ + 1 + ζ
And finally the frequency relationship is defined as
f
VCO
n = ------------- = 2 (synr + 1)
= 50
f
ref
With the above values the resistance can be calculated. The example is shown for a loop bandwidth
f =10kHz:
C
2 π n f
C
= 2*π*50*10kHz/(316.7Hz/Ω)=9.9kΩ=~10kΩ
R = ----------------------------
K
Φ
The capacitance C can now be calculated as:
s
2
0.516
≈ --------------;(ζ = 0.9)
2 ζ
= 5.19nF =~ 4.7nF
C =
---------------------
π f
s
f
R
R
C
C
The capacitance C should be chosen in the range of:
p
C ⁄ 20 ≤ C ≤ C ⁄ 10
Cp = 470pF
s
p
s
A.5.3.2 Jitter Information
The basic functionality of the PLL is shown in Figure A-2. With each transition of the clock f , the
cmp
deviation from the reference clock f is measured and input voltage to the VCO is adjusted
ref
accordingly.The adjustment is done continuously with no abrupt changes in the clock output frequency.
Noise, voltage, temperature and other factors cause slight variations in the control loop resulting in a clock
jitter. This jitter affects the real minimum and maximum clock periods as illustrated in Figure A-3.
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MC9S12DT256 Device User Guide — V03.03
1
2
3
N-1
N
0
t
min1
t
nom
t
max1
t
minN
t
maxN
Figure A-3 Jitter Definitions
is at its maximum for one clock period, and decreases towards zero for larger
The relative deviation of t
nom
number of clock periods (N).
Defining the jitter as:
t
(N)
t
(N)
max
min
J(N) = max 1 –
, 1 –
--------------------
---------------------
N t
N t
nom
nom
For N < 100, the following equation is a good fit for the maximum jitter:
j
1
J(N) =
+ j
-------
2
N
J(N)
1
5
10
20
N
Figure A-4 Maximum bus clock jitter approximation
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MC9S12DT256 Device User Guide — V03.03
This is very important to notice with respect to timers, serial modules where a pre-scaler will eliminate the
effect of the jitter to a large extent.
Table A-16 PLL Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
fSCM
Min
1
Typ
Max
5.5
Unit
MHz
MHz
1
2
P Self Clock Mode frequency
D VCO locking range
fVCO
8
50
Lock Detector transition from Acquisition to Tracking
mode
1
|∆trk
|∆Lock
|∆unl
|∆unt
|
3
D
3
4
%
(1)
|
4
5
D Lock Detection
0
1.5
2.5
%
(1)
|
D Un-Lock Detection
0.5
%
Lock Detector transition from Tracking to Acquisition
mode
(1)
|
6
D
6
8
%
PLLON Total Stabilization delay (Auto Mode) 2
C
tstab
tacq
tal
7
8
9
0.5
0.3
ms
ms
PLLON Acquisition mode stabilization delay (2)
D
PLLON Tracking mode stabilization delay (2)
D
0.2
ms
K1
f1
10 D Fitting parameter VCO loop gain
11 D Fitting parameter VCO loop frequency
12 D Charge pump current acquisition mode
13 D Charge pump current tracking mode
-100
60
MHz/V
MHz
µA
| ich
| ich
j1
|
38.5
3.5
|
µA
Jitter fit parameter 1(2)
Jitter fit parameter 2(2)
14
15
C
C
1.1
%
j2
0.13
%
NOTES:
1. % deviation from target frequency
2. fosc = 4MHz, fBUS = 25MHz equivalent fVCO = 50MHz: REFDV = #$03, SYNR = #$018, Cs = 4.7nF, Cp = 470pF, Rs = 10KΩ.
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MC9S12DT256 Device User Guide — V03.03
A.6 MSCAN
Table A-17 MSCAN Wake-up Pulse Characteristics
Conditions are shown in Table A-4 unless otherwise noted
Num C
Rating
Symbol
tWUP
Min
Typ
Max
Unit
µs
1
2
P MSCAN Wake-up dominant pulse filtered
P MSCAN Wake-up dominant pulse pass
2
tWUP
5
µs
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A.7 SPI
This section provides electrical parametrics and ratings for the SPI.
In Table A-18 the measurement conditions are listed.
Table A-18 Measurement Conditions
Description
Value
Unit
Drive mode
full drive mode
—
Load capacitance CLOAD,
on all outputs
50
pF
V
Thresholds for delay
measurement points
(20% / 80%) VDDX
A.7.1 Master Mode
In Figure A-5 the timing diagram for master mode with transmission format CPHA=0 is depicted.
1
SS
(OUTPUT)
2
1
12
12
13
13
3
SCK
0)
4
(CPOL
=
(OUTPUT)
4
SCK
= 1)
(CPOL
(OUTPUT)
5
6
MISO
(INPUT)
MSB IN2
LSB IN
BIT 6 . . . 1
10
9
11
MOSI
(OUTPUT)
MSB OUT2
BIT 6 . . . 1
LSB OUT
1.if configured as an output.
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
Figure A-5 SPI Master Timing (CPHA=0)
In Figure A-6 the timing diagram for master mode with transmission format CPHA=1 is depicted.
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MC9S12DT256 Device User Guide — V03.03
1
SS
(OUTPUT)
1
12
12
13
13
3
2
SCK
(CPOL
= 0)
(OUTPUT)
4
4
SCK
= 1)
(CPOL
(OUTPUT)
5
6
MISO
MSB IN2
BIT 6 . . . 1
11
BIT 6 . . . 1
LSB IN
(INPUT)
9
MOSI
(OUTPUT)
MASTER MSB OUT2
PORT DATA
MASTER LSB OUT
PORT DATA
1.If configured as output
2. LSBF = 0. For LSBF = 1, bit order is LSB, bit 1, ..., bit 6, MSB.
Figure A-6 SPI Master Timing (CPHA=1)
In Table A-19 the timing characteristics for master mode are listed.
Table A-19 SPI Master Mode Timing Characteristics
Num
Characteristic
Symbol
Unit
Min
1/2048
2
Typ
—
Max
fsck
tsck
tlead
tlag
twsck
tsu
fbus
tbus
tsck
tsck
tsck
ns
1
1
SCK Frequency
1/2
2048
—
SCK Period
—
2
Enable Lead Time
—
1/2
1/2
1/2
—
3
Enable Lag Time
—
—
4
Clock (SCK) High or Low Time
Data Setup Time (Inputs)
Data Hold Time (Inputs)
Data Valid after SCK Edge
Data Valid after SS fall (CPHA=0)
Data Hold Time (Outputs)
Rise and Fall Time Inputs
Rise and Fall Time Outputs
—
—
5
8
—
thi
6
8
—
—
ns
tvsck
tvss
tho
9
—
—
30
15
—
ns
10
11
12
13
—
—
ns
20
—
—
ns
trfi
—
8
ns
trfo
—
—
8
ns
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MC9S12DT256 Device User Guide — V03.03
A.7.2 Slave Mode
In Figure A-7 the timing diagram for slave mode with transmission format CPHA=0 is depicted.
SS
(INPUT)
1
12
12
13
13
3
SCK
0)
(CPOL
=
(INPUT)
4
4
2
SCK
(CPOL
= 1)
10
7
(INPUT)
8
9
11
11
MISO
(OUTPUT)
see
note
SEE
BIT 6 . . . 1
SLAVE LSB OUT
SLAVE MSB
6
NOTE
5
MOSI
(INPUT)
BIT 6 . . . 1
MSB IN
LSB IN
NOTE: Not defined!
Figure A-7 SPI Slave Timing (CPHA=0)
In Figure A-8 the timing diagram for slave mode with transmission format CPHA=1 is depicted.
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MC9S12DT256 Device User Guide — V03.03
SS
(INPUT)
3
1
12
13
13
2
SCK
(CPOL
= 0)
(INPUT)
4
4
12
11
SCK
= 1)
(INPUT)
(CPOL
8
9
MISO
see
BIT 6 . . . 1
SLAVE
5
MSB OUT
6
SLAVE LSB OUT
LSB IN
note
(OUTPUT)
7
MOSI
(INPUT)
MSB IN
BIT 6 . . . 1
NOTE: Not defined!
Figure A-8 SPI Slave Timing (CPHA=1)
In Table A-20 the timing characteristics for slave mode are listed.
Table A-20 SPI Slave Mode Timing Characteristics
Num
Characteristic
Symbol
Unit
Min
DC
4
Typ
—
—
—
—
—
—
—
—
—
Max
1/4
∞
fsck
tsck
tlead
tlag
twsck
tsu
fbus
tbus
tbus
tbus
tbus
ns
1
1
2
3
4
5
6
7
8
9
SCK Frequency
SCK Period
Enable Lead Time
4
—
Enable Lag Time
4
—
Clock (SCK) High or Low Time
Data Setup Time (Inputs)
Data Hold Time (Inputs)
Slave Access Time (time to data active)
Slave MISO Disable Time
Data Valid after SCK Edge
4
—
8
—
thi
8
—
ns
ta
—
—
20
22
ns
tdis
tvsck
ns
1
1
—
—
ns
30 + tbus
tvss
tho
trfi
10
11
Data Valid after SS fall
—
20
—
—
—
—
—
—
ns
ns
ns
ns
30 + tbus
Data Hold Time (Outputs)
Rise and Fall Time Inputs
Rise and Fall Time Outputs
—
8
12
trfo
13
8
NOTES:
1. tbus added due to internal synchronization delay
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MC9S12DT256 Device User Guide — V03.03
A.8 External Bus Timing
A timing diagram of the external multiplexed-bus is illustrated in Figure A-9 with the actual timing
values shown on table Table A-21. All major bus signals are included in the diagram. While both a data
write and data read cycle are shown, only one or the other would occur on a particular bus cycle.
A.8.1 General Muxed Bus Timing
The expanded bus timings are highly dependent on the load conditions. The timing parameters shown
assume a balanced load across all outputs.
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MC9S12DT256 Device User Guide — V03.03
1, 2
3
4
ECLK
PE4
5
6
16
10
9
15
11
Addr/Data
(read)
PA, PB
data
data
data
addr
7
8
12
14
data
13
Addr/Data
(write)
PA, PB
addr
17
19
23
26
18
Non-Multiplexed
Addresses
PK5:0
20
21
22
ECS
PK7
24
27
25
28
R/W
PE2
29
32
LSTRB
PE3
31
34
30
33
NOACC
PE7
35
36
IPIPO0
IPIPO1, PE6,5
Figure A-9 General External Bus Timing
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MC9S12DT256 Device User Guide — V03.03
Table A-21 Expanded Bus Timing Characteristics
Conditions are shown in Table A-4 unless otherwise noted, CLOAD = 50pF
Num C
Rating
Symbol
fo
Min
0
Typ
Max
Unit
MHz
ns
1
2
3
4
5
6
7
8
9
P Frequency of operation (E-clock)
P Cycle time
25.0
tcyc
40
19
19
PWEL
D Pulse width, E low
ns
Pulse width, E high1
D
PWEH
tAD
ns
D Address delay time
8
ns
Address valid time to E rise (PWEL–tAD
)
tAV
D
11
2
ns
tMAH
tAHDS
tDHA
tDSR
tDHR
tDDW
tDHW
tDSW
D Muxed address hold time
D Address hold to data valid
D Data hold to address
ns
7
ns
2
ns
10 D Read data setup time
11 D Read data hold time
12 D Write data delay time
13 D Write data hold time
13
0
ns
ns
7
ns
2
12
19
6
ns
Write data setup time1 (PWEH–tDDW
)
14
15
16
D
D
D
ns
ns
Address access time1 (tcyc–tAD–tDSR
E high access time1 (PWEH–tDSR
)
tACCA
tACCE
tNAD
tNAV
tNAH
tCSD
tACCS
tCSH
tCSN
tRWD
tRWV
tRWH
tLSD
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
)
17 D Non-multiplexed address delay time
Non-muxed address valid to E rise (PWEL–tNAD
6
)
18
D
15
2
19 D Non-multiplexed address hold time
20 D Chip select delay time
16
Chip select access time1 (tcyc–tCSD–tDSR
)
21
D
11
2
22 D Chip select hold time
23 D Chip select negated time
24 D Read/write delay time
8
7
7
7
Read/write valid time to E rise (PWEL–tRWD
)
25
D
14
2
26 D Read/write hold time
27 D Low strobe delay time
Low strobe valid time to E rise (PWEL–tLSD
)
tLSV
28
D
14
2
tLSH
29 D Low strobe hold time
tNOD
tNOV
30 D NOACC strobe delay time
NOACC valid time to E rise (PWEL–tNOD
)
31
D
14
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MC9S12DT256 Device User Guide — V03.03
Table A-21 Expanded Bus Timing Characteristics
Conditions are shown in Table A-4 unless otherwise noted, CLOAD = 50pF
Num C
Rating
Symbol
tNOH
Min
2
Typ
Max
Unit
ns
32 D NOACC hold time
33 D IPIPO[1:0] delay time
tP0D
2
7
ns
IPIPO[1:0] valid time to E rise (PWEL–tP0D
)
tP0V
34
35
D
D
11
ns
IPIPO[1:0] delay time1 (PWEH-tP1V
)
tP1D
tP1V
2
25
ns
ns
36 D IPIPO[1:0] valid time to E fall
11
NOTES:
1. Affected by clock stretch: add N x tcyc where N=0,1,2 or 3, depending on the number of clock stretches.
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MC9S12DT256 Device User Guide — V03.03
Appendix B Package Information
B.1 General
This section provides the physical dimensions of the MC9S12DT256 packages.
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MC9S12DT256 Device User Guide — V03.03
B.2 112-pin LQFP package
4X
0.20
T L-M N
4X 28 TIPS
85
0.20
T L-M N
4X
P
J1
J1
PIN 1
IDENT
112
C
1
84
L
VIEW Y
X
108X
G
X=L, M OR N
VIEW Y
V
B
L
M
AA
J
B1
V1
28
57
BASE
METAL
F
D
29
56
M
0.13
T
L-M
N
N
SECTION J1-J1
A1
S1
ROTATED 90 COUNTERCLOCKWISE
°
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
A
2. DIMENSIONS IN MILLIMETERS.
3. DATUMS L, M AND N TO BE DETERMINED AT
SEATING PLANE, DATUM T.
S
4. DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE, DATUM T.
5. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION. ALLOWABLE
PROTRUSION IS 0.25 PER SIDE. DIMENSIONS
A AND B INCLUDE MOLD MISMATCH.
6. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL NOT CAUSE THE D
DIMENSION TO EXCEED 0.46.
C2
VIEW AB
θ2
C
0.050
112X
0.10
T
SEATING
PLANE
MILLIMETERS
DIM
A
MIN
MAX
θ3
20.000 BSC
A1
B
B1
C
C1
C2
D
10.000 BSC
20.000 BSC
10.000 BSC
T
---
0.050
1.350
0.270
0.450
0.270
1.600
0.150
1.450
0.370
0.750
0.330
θ
E
F
G
0.650 BSC
J
K
P
0.090
0.500 REF
0.325 BSC
0.170
R R2
R1
R2
S
0.100
0.100
22.000 BSC
0.200
0.200
0.25
R R1
S1
V
V1
Y
11.000 BSC
22.000 BSC
11.000 BSC
0.250 REF
1.000 REF
GAGE PLANE
(K)
Z
C1
θ1
AA
θ
0.090
0.160
E
8
°
°
°
°
0
°
°
°
°
θ
θ
θ
1
2
3
3
7
(Y)
(Z)
13
13
11
11
VIEW AB
Figure B-1 112-pin LQFP mechanical dimensions (case no. 987)
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MC9S12DT256 Device User Guide — V03.03
B.3 80-pin QFP package
L
60
61
41
40
B
P
B
-A-
L
-B-
V
B
-A-,-B-,-D-
DETAIL A
DETAIL A
21
80
F
1
20
-D-
A
S
M
S
S
S
0.20
H
A-B
A-B
D
D
0.05 A-B
J
N
M
S
0.20
C
D
M
E
DETAIL C
M
S
S
0.20
C
A-B
D
SECTION B-B
VIEW ROTATED 90
C
DATUM
PLANE
-H-
°
-C-
0.10
H
SEATING
PLANE
M
G
NOTES:
MILLIMETERS
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
DIM
A
B
C
D
E
MIN
13.90
13.90
2.15
MAX
14.10
14.10
2.45
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE -H- IS LOCATED AT BOTTOM OF
LEAD AND IS COINCIDENT WITH THE
LEAD WHERE THE LEAD EXITS THE PLASTIC
BODY AT THE BOTTOM OF THE PARTING LINE.
4. DATUMS -A-, -B- AND -D- TO BE
DETERMINED AT DATUM PLANE -H-.
5. DIMENSIONS S AND V TO BE DETERMINED
AT SEATING PLANE -C-.
6. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION. ALLOWABLE
PROTRUSION IS 0.25 PER SIDE. DIMENSIONS
A AND B DO INCLUDE MOLD MISMATCH
AND ARE DETERMINED AT DATUM PLANE -H-.
7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 TOTAL IN
EXCESS OF THE D DIMENSION AT MAXIMUM
MATERIAL CONDITION. DAMBAR CANNOT
BE LOCATED ON THE LOWER RADIUS OR
THE FOOT.
U
0.22
0.38
2.00
2.40
T
F
0.22
0.33
G
H
J
K
L
M
N
P
Q
R
S
0.65 BSC
DATUM
PLANE
---
0.13
0.65
0.25
0.23
0.95
-H-
R
12.35 REF
5
0.13
10
0.17
°
°
0.325 BSC
K
0
7
Q
°
°
W
0.13
16.95
0.13
0.30
17.45
---
X
T
DETAIL C
U
V
W
X
0
---
17.45
0.45
°
16.95
0.35
1.6 REF
Figure B-2 80-pin QFP Mechanical Dimensions (case no. 841B)
127
MC9S12DT256 Device User Guide — V03.03
128
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