CXN1000-3AAL [SONY]
Bluetooth Module; 蓝牙模块型号: | CXN1000-3AAL |
厂家: | SONY CORPORATION |
描述: | Bluetooth Module |
文件: | 总24页 (文件大小:140K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
CXN1000
BluetoothTM Module
Description
The CXN1000 is a fully integrated Class 2 radio and baseband module conforming to ver. 1.1 of the BluetoothTM
specification.
Features
• UART, USB, PCM codec, PIO, and AIO interfaces, enabling a wide range of applications.
• Small package: 11 × 11 × 2.2mm
• 4M-bit or 8M-bit on-module flash memory options
• Voltage regulator options: either on-module or external 1.8V regulator supported
• The CXD3251GL is fully compatible with the Bluecore2-EXT from CSR
• Support for up to 7 slaves from a single master
• Channel quality driven data rate
General Specifications
• Product name:
BluetoothTM module
• Model number:
CXN1000-3
L
• Antenna connector impedance:
• External interfaces:
• Supply voltage:
50Ω
UART, USB, PCM, PIO, AIO
2.7 to 3.6V
• Package dimensions:
11.0 × 11.0 × 2.2mm
An external 1.8 ± 0.1V power supply is required for modules without internal voltage regulator (customer option).
Block Diagram
VDD: 3V
...
3AAL, 3CAL 4M-bit
3BAL, 3DAL 8M-bit
Integrated in 3AAL and
3BAL versions only
...
Regulator
Flash Memory
V
DD: 1.8V
UART
USB
TX
RX
BPF
Balun
ANT
CXD3251GL
PCM
SPI
32MHz
X'tal
PIO, AIO
BluetoothTM is a trademark owned by Bluetooth SIG, Inc. and licensed to Sony.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
– 1 –
E02860E43
CXN1000
Pin Configuration
4
6
7
8
1
2
3
5
9
10
11
12
13
14
15
16
17
18
19
36
35
34
33
32
31
30
29
28
27 26 25
21 20
24 23 22
Bottom View
Pin Description
No.
1
Name
Type
Description
GND
GND
Ground.
VDD
2
VDD3.0
CE
Supply voltage 3.0V.
1.8V regulator control.
Regulator on at high.
CMOS input
3
4
5
6
7
8
9
1.8V monitor(-3AAL/-3BAL)/Input 1.8V(-3CAL/
-3DAL)
Monitor Output/VDD
VDD1.8
Reset at high. Input is debounced, so this pin
should be high for 5ms or more to cause a reset.
CMOS input with 1kΩ pull-down
PD-RST
Bi-directional with programmable
weak internal pull-up/down
PIO_4/USB_ON
Programmable I/O line or USB on.
PIO_3/
USB_WAKE_UP
Bi-directional with programmable Programmable I/O line or output goes high to
weak internal pull-up/down
wake up PC when in USB mode.
Bi-directional with programmable
weak internal pull-up/down
PIO_6
PIO_8
Programmable I/O line.
Bi-directional with programmable
weak internal pull-up/down
Programmable I/O line.
10 GND
11 RF
GND
Ground.
Analog
GND
RF input/output.
Ground.
12 GND
Bi-directional with programmable
weak internal pull-up/down
13 PIO_7
14 AIO_0
Programmable I/O line.
Programmable I/O line.
Bi-directional
– 2 –
CXN1000
No.
Name
Type
Description
CMOS input with weak internal
pull-up
Chip select for Serial Peripheral Interface,
active low.
15 SPI_CSB
16 SPI_MISO
17 SPI_CLK
18 SPI_MOSI
CMOS output, tristatable with
weak internal pull-down
Serial Peripheral Interface data output.
Serial Peripheral Interface clock.
CMOS input with weak internal
pull-down
CMOS input with weak internal
pull-down
Serial Peripheral Interface data input.
GND
19 GND
20 GND
21 AIO_1
Ground.
GND
Ground.
Bi-directional
Programmable I/O line.
Bi-directional with weak internal
pull-down
22 PCM_CLK
23 PCM_OUT
24 PCM_SYNC
25 PCM_IN
Synchronous data clock.
Synchronous data output.
Synchronous data sync.
Synchronous data input.
CMOS output, tristatable with
weak internal pull-down
Bi-directional with 100kΩ
pull-down
CMOS input with weak internal
pull-down
26 USB–
27 USB+
28 GND
USB data minus.
USB data plus.
Ground.
Bi-directional
Bi-directional
GND
CMOS input with weak internal
pull-down
29 UART_RX
30 UART_TX
31 UART_RTS
UART data input, active high.
UART data output, active high.
UART request to send, active low.
CMOS output
CMOS output, tristatable with
weak internal pull-up
CMOS input with weak internal
pull-down
32 UART_CTS
33 PIO_10
34 PIO_9
UART clear to send, active low.
Programmable I/O line.
Programmable I/O line.
Programmable I/O line.
Bi-directional with programmable
weak internal pull-up/down
Bi-directional with programmable
weak internal pull-up/down
Bi-directional with programmable
weak internal pull-up/down
35 PIO_11
PIO_5/
36
Programmable I/O line or chip detaches from
USB when this input is high.
Bi-directional with programmable
weak internal pull-up/down
USB_DETACH
– 3 –
CXN1000
Product Name Specifications
1
CXN1000-3 2L
1
See table below
2
Firmware version
Flash memory size
4M-bit
8M-bit
Integrated
CXN1000-3AAL
CXN1000-3CAL
CXN1000-3BAL
1.8V regulator
Not integrated
(external 1.8V supply)
CXN1000-3DAL
– 4 –
CXN1000
Electrical Characteristics
Absolute Maximum Ratings
Item
Min.
–40
Max.
+85
Unit
°C
V
Storage temperature
(Only for CXN1000-CAL and CXN1000-3DAL)
–0.40
–0.40
1.90
3.60
VDD1.8
Supply voltage
VDD3.0
V
Recommended Operating Conditions
Item
Min.
–40
Max.
+85
Unit
°C
V
Operating temperature range
(Only for CXN1000-CAL and CXN1000-3DAL)
(Temperature: –40 to +85°C)
1.70
2.70
1.90
3.60
VDD1.8
Supply voltage
V
VDD3.0
Input/Output Terminal Characteristics
This I/O pin characteristics is the CXD3251GL IC specifications used internally of the CXN1000.
Digital Terminals
Input Voltage
Min.
Typ.
Max.
Unit
VIL input logic level low
VIH input logic level high
Output Voltage
VDD3.0 = 3.0V
–0.4
0.8
V
V
0.7 × VDD3.0
VDD3.0 + 0.4
VOL output logic level low
(IO = 4.0mA)
VDD3.0 = 3.0V
VDD3.0 = 3.0V
—
—
—
0.2
—
V
V
VOH output logic level high
(IO = 4.0mA)
VDD3.0 – 0.2
Input and Tristate Current
Weak pull-up
–5
0
–1
1
0
5
µA
µA
µA
pF
Weak pull-down
I/O pad leakage current
CI input capacitance
–1
2.5
0
1
—
10
– 5 –
CXN1000
Input/Output Terminal Characteristics (continued)
USB Terminals
Min.
—
Typ.
Max.
Unit
Input Threshold
VIL input logic level low
—
—
0.3 × VDD3.0
V
V
VIH input logic level high
Input Leakage Current
GND < VIN < VDD3.0
CI input capacitance
0.7 × VDD3.0
—
–1
—
—
1
µA
pF
2.5
10
Output Levels to Correctly Terminated USB Cable
VOL input logic level low
0
—
—
0.2
V
V
VOH input logic level high
2.8
VDD3.0
Auxiliary DAC, 8-bit Resolution
Resolution
Min.
—
Typ.
—
Max.
8
Unit
Bits
mV
Average output step size
Output Voltage
12.5
14.5
17
Monotonic: 0.2 to VDD3.0 – 0.2V
Voltage range (IO = 0)
Current range
GND
–10
0
—
—
—
—
—
—
—
—
—
VDD3.0
0.1
0.2
VDD3.0
1
V
mA
V
Minimum output voltage (IO = 100µA)
Maximum output voltage (IO = 10mA)
High impedance leakage current
Offset
VDD3.0 – 0.3
V
–1
–220
–2
µA
mV
LSB
µs
120
2
Integral non-linearity
Starting time (50pF load)
Setting time (50pF load)
—
10
—
5
µs
PD-RST Terminal
VDD falling threshold
VDD rising threshold
Hysteresis
Min.
1.40
1.50
0.05
Typ.
1.50
1.60
0.10
Max.
1.60
1.70
0.15
Unit
V
V
V
– 6 –
CXN1000
Input/Output Terminal Characteristics (continued)
CE Terminal
Min.
Typ.
Max.
Unit
Input Voltage
VIL input logic level low
VIH input logic level high
Input Current
—
—
—
0.2
V
V
1.7
VDD3.0
IIL input logic level low
IIH input logic level high
–0.15
–0.15
—
—
0.15
0.15
µA
µA
Radio Characteristics
Condition
N & ETC
Min.
Typ.
Max.
4
Unit
Remark
Transmitter
Output power (Average)
–6
0
dBm
delta-f1 avg N & ETC
delta-f2 max N & ETC
140
115
165
140
175
kHz 11110000 mod.
kHz 1010 mod.
Modulation characteristics
Initial carrier frequency
tolerance
N & ETC
10
75
kHz
DH1
DH3
DH5
N & ETC
N & ETC
N & ETC
12
12
15
25
40
40
kHz
kHz
kHz
Carrier frequency drift
kHz/
50µs
DH1
DH3
DH5
N & ETC
N & ETC
N & ETC
8
20
20
20
kHz/
50µs
10
12
Drift rate
kHz/
50µs
N & ETC
N & ETC
N & ETC
N & ETC
N & ETC
N & ETC
900
–40
–50
–65
–55
–75
–75
1000
–20
–40
–36
–30
–47
–47
kHz
dBm
dBm
dBm
dBm
dBm
dBm
20dB bandwidth
|M-N| = 2
|M-N| ≥3
Adjacent channel power
30M-1G
1G-12.75G
1.8G-1.9G
Out-of-band spurious
emissions
5.15G-5.3G N & ETC
NTC: Normal Test Conditions +15 to +35°C, ETC: Extreme Test Conditions –40 to +85°C
– 7 –
CXN1000
Radio Characteristics (Continued)
Receiver
Condition
N & ETC
NTC
Min.
Typ.
–85
9
Max.
–78
11
Unit
Remark
Sensitivity (single slot packets)
dBm BER < 0.1%
co-ch.
1MHz
dB
dB
NTC
–2
0
2MHz
C/I performance
NTC
–34
–43
–18
–23
–30
–40
–9
dB
≥3MHz
NTC
dB
Image
NTC
dB
Image ± 1MHz
NTC
–20
dB
30-2000M
NTC
–10
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
(800M-1000M)
NTC
10
10
(1800M-1900M) NTC
Blocking performance
2000-2399M
2498-3000M
3G-12.75G
NTC
–27
–27
–10
–39
NTC
NTC
Inter modulation performance
NTC
–30
–78
–55
2
30M-1G
1G-12.75G
N & ETC
N & ETC
NTC
–57
–47
5
Spurious emissions
Maximum input level
–20
NTC: Normal Test Conditions +15 to +35°C, ETC: Extreme Test Conditions –40 to +85°C
Current Consumption
(Temperature: –40 to +85°C)
Mode
Average
26
Peak
Unit
Remark
SCO connection HV3 (1s interval sniff mode)
SCO connection HV1 (Master or Slave)
ACL data transfer 115.2Kbps UART (Master)
ACL data transfer 720Kbps USB
ACL connection, Sniff Mode 40ms interval
ACL connection, Sniff Mode 1.28s interval
Parked Slave, 1.28s beacon interval
Deep sleep mode
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Master or Slave
53
15.5
53
Master or Slave
38.4Kbps BCSP
38.4Kbps BCSP
38.4Kbps BCSP
38.4Kbps BCSP
115.2Kbps H4
4
0.5
0.6
0.06
2.2
57
20
22
68
70
Sleep mode
(0dBm Tx)
(Rx)
Peak RF current during RF burst
47
– 8 –
CXN1000
Marking Contents
1) CXN1000-3BAL
Sony logo
C X N 1 0 0 0
- 3 B A L
Product name
2 2 1 A 1 0 S
Shield case
Lot No.
Pin1 indication
(1mmφ)
Pin 1
• Sony logo: Fixed
• Product name: The string of alphanumerics "-3BAL" on the second line differs
according to the module contents.
• Lot No.: Control number, production location
2) Other than CXN1000-3BAL
Sony logo
C X N 1 0 0 0
- 3 A A L
Product name
2 2 1 A 1 0 S
Shield case
Lot No.
Pin 1
• Sony logo: Fixed
• Product name: The string of alphanumerics "-3AAL" on the second line differs
according to the module contents.
• Lot No.: Control number, production location
– 9 –
CXN1000
CXN1000 Package Outline
Unit: mm
Pin 1
11 ± 0.4
36 - φ0.7 ± 0.07
1
10
11
36
28
19
20
25
1 ± 0.05
0
1
(9)
–0.15
Note: Without the boss for connection/disconnection
– 10 –
CXN1000
Recommended Temperature Profile for Unleaded Reflow Soldering
250
+5
Peak: 240 ˚C
0
230˚C or more
2 to 6˚C/s
200
Pre heating zone
180˚C
(3 to 6˚C/s)
150
100
50
150˚C
90 ± 30 s
2 to 4˚C/s
20 ± 10 s
Soldering zone
Heating time
– 11 –
CXN1000
Radio Characteristics Measurement System Block Diagram (Application System Block Diagram)
System A
Spectrum analyzer:
Agilent E4407B
or equivalent
Spectrum
Analyzer
BT Module
Power
Supply
Interface
Board
[Measurement Item]
• Output power
PC
• Out-of-Band spurious emissions
• Power density
System B
System C
System D
Spectrum analyzer:
ROHDE&SCHWARZ FSEA20
or equivalent
Spectrum
Analyzer
BT Module
Power
Supply
Interface
Board
[Measurement Item]
• Frequency range
• Adjacent channel power
PC
Vector
Signal
Analyzer
Vector Signal Analyzer:
Agilent 89640
or equivalent
BT Module
Power
Supply
Interface
Board
[Measurement Item]
• Modulation characteristics
• Initial carrier frequency tolerance
• Carrier frequency drift, Drift rate
• 20dB band width
PC
Signal Generator:
Agilent E4432B
or equivalent
Signal
Generator
BT Module
Interface
Board
Power
Supply
[Measurement Item]
• Sensitivity (single slot)
• Maximum input level
PC
– 12 –
CXN1000
System E
(Interference)
Signal Generator:
Agilent E4432B
or equivalent
Signal
Generator
Signal Generator:
Agilent E4432B
or equivalent
Signal
Generator
BT Module
Power
Supply
Interface
Board
PC
[Measurement Item]
• C/I performance
(CW)
System F
Signal Generator:
Agilent 83712B
or equivalent
Signal
Generator
Signal Generator:
Agilent E4432B
or equivalent
Signal
Generator
BT Module
Interface
Board
Power
Supply
[Measurement Item]
• Blocking performance
PC
(Interference)
System G
Signal Generator:
Agilent 4432B
or equivalent
Signal
Generator
(CW)
Signal Generator:
Agilent 83712B
or equivalent
Signal
Generator
Signal Generator:
Agilent 4432B
or equivalent
Signal
Generator
BT Module
Power
Supply
Interface
Board
[Measurement Item]
PC
• Intermodulation performance
– 13 –
CXN1000
For details of the contents below, see the specifications of the BlueCore 2-External (equivalent to the
CXD3251GL) made by CSR.
Software Stack
The CXN1000 features a 16-bit RISC microcontroller which runs a software stack complying with Bluetooth
specifications ver. 1.1.
The following are the three software stack options to integrate into the CXN1000.
1) HCI Stack
HCI
LM
LC
Baseband
32K-byte RAM
microcontroller
UART
Host I/O
Host
USB
Radio
PCM I/O
HCI Stack Configuration
The HCI stack enables the layers up to the host controller interface (HCI) to be executed by the on-module
RISC microcontroller. It is considered to be the most common stack configuration with general-purpose
capabilities. All layers above HCI are handled by the host processor.
– 14 –
CXN1000
2) RFCOMM Stack
RFCOMM
SDP
L2CAP
LM
LC
Baseband
microcontroller
32K-byte RAM
UART
USB
Host
Host I/O
PCM I/O
Radio
RFCOMM Stack Configuration
The RFCOMM stack enables the layers up to RFCOMM to be executed by the on-module RISC microcontroller.
Then, the amount of processing is reduced on the host processor.
3) Virtual Machine Stack
VM application software
RFCOMM
SDP
L2CAP
LM
LC
Baseband
microcontroller
32K-byte RAM
UART
Host
Host I/O
PCM I/O
Radio
Virtual Machine Stack Configuration
– 15 –
CXN1000
The Virtual Machine stack eliminates the need for a host processor. The applications and Bluetooth stack can
be run on the integrated RISC microprocessor using a application execution environment called Virtual
Machine (VM).
In order to develop applications, the BlueLabTM software development environment (SDK) and Casira
development kit supplied by CSR are required. Inquire for further details.
– 16 –
CXN1000
• External Interfaces
UART Interface
1
The UART interface makes it easy to communicate with other serial devices using the RS-232 standard .
CXN1000
UART_TX 30
UART_RX 29
UART_RTS 31
UART_CTS 32
UART Pins
As shown in the figure above, four signals are used to execute the UART function. When the CXN1000 is
connected to another digital device, data is transmitted between the two devices using the UART_RX and
UART_TX signals. The remaining two low active signals, UART_CTS and UART_RTS, can be used for RS-232
hardware flow control. All the UART pins are configured as CMOS I/O pins. Their signal levels are 0V and VDD3.0.
The baud rate, packet format and other UART configuration parameters are set using PS Tool or other
BlueCore software.
Note: In order to communicate with UART at the maximum data rate using a standard PC, a serial port
adapter card with acceleration must be installed in the PC.
1
The RS-232 protocol is used, but the voltage level is from 0V to VDD3.0. (An RS-232 transceiver IC must
be externally attached.)
Parameter
Possible values
1200 baud (≤2% error)
9600 baud (≤1% error)
1.5M baud (≤1% error)
RTS/CTS or none
None, odd or even
1 or 2
Minimum
Maximum
Baud rate
Flow control
Parity
Number of stop bits
Bits per channel
8
UART Settings
– 17 –
CXN1000
With the UART interface, the CXN1000 can be reset as soon as a break signal is received. As shown in the
figure below, the break is identified by the continuous low logic level in the UART_RX pin. Resetting occurs if
tBRK is longer than the value defined by PSKEY_HOST_IO_UART_RESET_TIMEOUT (0x1A4) persistent store
key. The system can be initialized to a known status from the host using this function.
The CXN1000 can also send break characters that can be used for starting the host.
t
BRK
UART_RX
Break Signal
The frequently used baud rates and the values of the PSKEY_UART_BAUD_RATE (0x204) persistent store
key linked to those rates are shown in the table below. These standard values are not necessarily required
conditions, and all baud rates within the range supported can be set by the persistent store key with the
following equation.
PSKEY_UART_BAUD_RATE
Baud Rate =
0.004096
Persistent store value
Baud rate
Error
Hex
Dec
5
1200
2400
0x0005
0x000A
0x0014
0x0027
0x004F
0x009D
0x00EC
0x013B
0x01D8
0x03B0
0x075F
0x0EBF
0x161E
1.73%
1.73%
1.73%
–0.82%
0.45%
–0.18%
0.03%
0.14%
0.03%
0.03%
–0.02%
0.00%
–0.01%
10
4800
20
9600
39
19200
38400
57600
76800
115200
230400
460800
921600
1382400
79
157
236
315
472
944
1887
3775
5662
Standard Baud Rates
– 18 –
CXN1000
USB Interface
The USB pins of the CXN1000 support a full speed (12Mbps) USB interface. They enable direct drive of the
USB cable, thereby obviating the need for an external USB transceiver. With this interface, the CXN1000 can
operate as a USB unit and respond to requests from a PC or other master host controller. The interface
supports both OHCI and UHCI standards. It also complies with Bluetooth specifications Ver.1.1 and part H2.
Although USB is a system that is capable of both master and slave operations, the CXN1000 supports USB
slave operations only.
– 19 –
CXN1000
Serial Peripheral Interface (SPI)
When data is sent or received through the SPI pins, the CXN1000 uses 16-bit data and 16-bit addresses.
Through these pins, data is transmitted and received while both the internal processor is operating and it has
stopped operating. Data is written or read one word at a time unless the auto increment function is used to
access blocks.
SPI_CLK
Write command
C6
Address
Data
C7
C0 A15 A14
A0
SPI_MOSI
SPI_MISO
T15 T14
D0
Don't care
Write Operation A
SPI_CSB
SPI_CLK
SPI_MOSI
Don't care
SPI_MISO XS
XS
Write Operation B
– 20 –
CXN1000
SPI_CLK
SPI_MOSI
SPI_MISO
Read command
C6
Address
Don't care
C7
C0 A15 A14
A0
Check word
Data
Don't care
T15 T14
T0 D15 D14
D0
Read Operation A
SPI_CSB
SPI_CLK
SPI_MOSI
Don't care
SPI_MISO XS
T15 to D0
XS
Read Operation B
– 21 –
CXN1000
PCM Interface
The PCM interface of the CXN1000 supports the continuous transmission and reception of PCM data using
hardware. This reduces the overhead of processors for wireless headset applications. The CXN1000 provides
a bidirectional digital audio interface that is connected directly to the baseband layer of the on-chip firmware.
The bidirectional digital audio interface does not pass the HCI protocol layer.
Data can be transmitted and received with one or more SCO connections using the hardware of the CXN1000.
The PCM interface supports up to three SCO connections at a time.
The CXN1000 can operate as the PCM interface master for generating an output clock of 128, 256 or 512kHz.
Alternatively, when it is set to serve as the PCM interface slave, it can operate using an input clock up to
2048kHz. The CXN1000 can support many different clock types including long frame sync, short frame sync
and GCI timings.
In terms of 8k per second sampling, the CXN1000 supports 13- or 16-bit linear, 8-bit µ-Law and 8-bit A-Law
companding sample formats. The PCM settings can be performed using the PSKEY_PCM_CONFIG (0x1B3)
persistent store key.
– 22 –
CXN1000
PCM Interface Master/Slave
When the CXN1000 is set as the PCM interface master, PCM_CLK and PCM_SYNC are generated.
CXN1000
PCM_OUT
PCM_IN
23
25
22
PCM_CLK
128/256/512kHz
8kHz
PCM_SYNC 24
PCM Interface Master
When the CXN1000 is configured as the PCM interface slave, PCM_CLK rates up to 2048kHz are accepted.
CXN1000
PCM_OUT 23
PCM_IN
PCM_CLK
25
22
24
Up to 2048kHz
8kHz
PCM_SYNC
PCM Interface Slave
– 23 –
CXN1000
PIO Port
The parallel input/output (PIO) port serves as the general-purpose I/O interface of the CXN1000. It consists of
nine programmable bidirectional I/O lines.
These programmable I/O lines can be accessed via either the installed application run by the CXN1000 or the
private channel or manufacturer-designated HCI commands.
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PIO[3]/USB_WAKE_UP
This multi-functional terminal is a programmable I/O line. Either the programmable I/O or USB_WAKE_UP
function can be selected with the PSKEY_USB_PIO_WAKEUP (0x2CF) persistent store key setting.
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PIO[4]/USB_ON
This multi-functional terminal is a programmable I/O line. It can also be used as the USB_ON function.
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PIO[5]/USB_DETACH
This multi-functional terminal is a programmable I/O line. It can also be used as the USB_DETACH function.
PIO[6]/CLK_REQ
This is a multi-functional terminal whose function is determined by the persistent store keys.
Using PSKEY_CLOCK_REQUEST_ENABLE (0x246), it can be set to low when the CXN1000 is in deep sleep
and to high when a clock is requested. If a shift in the timing in certain operation modes is to be avoided, the
clock must be supplied within 4ms from the PIO[6] rising edge.
PIO[7]
Programmable I/O terminal
PIO[8]
Programmable I/O terminal
PIO[9]
Programmable I/O terminal
PIO[10]
Programmable I/O terminal
PIO[11]
Programmable I/O terminal
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The USB function can be mapped in the software to any of the PIO terminals.
Sony Corporation
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