Expanders
Tiger City IMX Industrial Computer with Linux OS
Expander A
Part number: 74HC595BQ
Expander A diagram
Expander A pins description
|
Pin |
Type |
Usage |
User-space name |
Description |
|
1 |
Q1 |
DO1 |
gpiochip8 1 |
Digital output 1 |
|
2 |
Q2 |
DO2 |
gpiochip8 2 |
Digital output 2 |
|
3 |
Q3 |
DO3 |
gpiochip8 3 |
Digital output 3 |
|
4 |
Q4 |
DO4 |
gpiochip8 4 |
Digital output 4 |
|
5 |
Q5 |
DO5 |
gpiochip8 5 |
Digital output 5 |
|
6 |
Q6 |
DO6 |
gpiochip8 6 |
Digital output 6 |
|
7 |
Q7 |
DO7 |
gpiochip8 7 |
Digital output 7 |
|
9 |
Q7S |
NC |
X |
Not connected |
|
10 |
MR/ |
NRST_GLOBAL |
X |
Reset |
|
11 |
SHCP |
SPI1_SCLK |
X |
SPI clock |
|
12 |
STCP |
SPI1_CS1 |
X |
SPI chip select |
|
13 |
OE/ |
GND |
X |
Output enable |
|
14 |
DS |
SPI1_MOSI |
X |
SPI master out slave in |
|
15 |
Q0 |
MUX_DIO_SEL |
gpiochip8 0 |
MUX_PWM selection signal |
|
16 |
VCC |
+3V3 |
X |
Power supply |
SPI1
|
Signal |
Processor pin |
Default function |
|
Chip select 0 |
AD18 |
SPI1_CS0 |
|
Chip select 1 |
AG23 |
SPI1_CS1 |
|
Master in slave out |
A7 |
SPI1_MISO |
|
Clock |
D6 |
SPI1_SCLK |
|
Master out slave in |
B7 |
SPI1_MOSI |
Expander B
Part number: SC16IS752IBS
Expander B diagram
Expander B pins description
|
Pin |
Type |
Usage |
User-space name |
Description |
|
1 |
RXA(I) |
RS485_UART1_RX |
X |
RS485 UART1 RX |
|
2 |
RESET/ |
RS485_NRST |
X |
Reset |
|
3 |
XTAL1(I) |
TXCO_OUT |
X |
Oscillator output |
|
4 |
XTAL2(O) |
NC |
X |
Not connected |
|
5 |
VDD |
+3V3 |
X |
Power supply |
|
6 |
I2C / SPI/ |
GND |
X |
Ground |
|
7 |
CS/ / A0 |
SPI2_CS1 |
X |
SPI chip select |
|
8 |
SI / A1 |
SPI2_MOSI |
X |
SPI master out slave in |
|
9 |
SO |
SPI2_MISO |
X |
SPI master in slave out |
|
10 |
SCL / SCLK |
SPI2_SCLK |
X |
SPI clock |
|
11 |
SDA / VSS |
GND |
X |
Ground |
|
12 |
VSS |
GND |
X |
Ground |
|
14 |
IRQ/ |
RS485_INT |
X |
RS485 interrupt |
|
15 |
CTSB/ |
NC |
X |
Not connected |
|
16 |
RTSB/ |
RS485_UART2_RTS |
X |
RS485 UART2 RTS |
|
17 |
GPIO0 / DSRB/ |
NC |
X |
Not connected |
|
18 |
GPIO1 / DTRB/ |
NC |
X |
Not connected |
|
19 |
GPIO2 / CDB/ |
NC |
X |
Not connected |
|
20 |
GPIO3 / RIB/ |
NC |
X |
Not connected |
|
22 |
TXB(O) |
RS485_UART2_TX |
X |
RS485 UART2 TX |
|
23 |
RXB(I) |
RS485_UART2_RX |
X |
RS485 UART2 RX |
|
24 |
GPIO4 / DSRA/ |
NC |
X |
Not connected |
|
25 |
GPIO5 / DTRA/ |
NC |
X |
Not connected |
|
26 |
GPIO6 / CDA/ |
NC |
X |
Not connected |
|
27 |
GPIO7 / RIA/ |
NC |
X |
Not connected |
|
30 |
RTSA/ |
RS485_UART1_RTS | X | RS485 UART1 RTS |
|
31 |
CTSA/ |
NC |
X |
Not connected |
|
32 |
TXA(O) |
RS485_UART1_TX |
X |
RS485 UART1 TX |
SPI2
|
Signal |
Processor pin |
Default function |
|
Chip select 0 |
A6 |
SPI2_CS0 |
|
Chip select 1 |
AF12 |
SPI2_CS1 |
|
Chip select 2 |
AB19 |
SPI2_CS2 |
|
Master in slave out |
A8 |
SPI2_MISO |
|
Clock |
E6 |
SPI2_SCLK |
|
Master out slave in |
B8 |
SPI2_MOSI |
Expander C
Part number: MCP23017-E/ML
Expander C diagram
Expander C pins description
|
Pin |
Port |
Type |
User-space name |
Description |
|
1 |
GPB4 |
GPIO |
gpiochip5 12 |
UIO4 voltage |
|
2 |
GPB5 |
GPIO |
gpiochip5 13 |
UIO4 current |
|
3 |
GPB6 |
GPIO |
gpiochip5 14 |
UIO4 resistance |
|
4 |
GPB7 |
GPIO |
gpiochip5 15 |
UIO3 resistance |
|
5 |
VDD |
+3V3 |
X |
Power supply |
|
6 |
VSS |
GND |
X |
Ground |
|
7 |
NC |
NC |
X |
Not connected |
|
8 |
SCK |
GPIO |
X |
I2C clock |
|
9 |
SDA |
GPIO |
X |
I2C data |
|
10 |
NC |
NC |
X |
Not connected |
|
11 |
A0 |
GND |
X |
Address bit 0 |
|
12 |
A1 |
GND |
X |
Address bit 1 |
|
13 |
A2 |
GND |
X |
Address bit 2 |
|
14 |
RESET/ |
EXP2_NRST |
X |
Reset |
|
15 |
INTB |
NC |
X |
Not connected |
|
16 |
INTA |
NC |
X |
Not connected |
|
17 |
GPA0 |
GPIO |
gpiochip5 0 |
UIO2 resistance |
|
18 |
GPA1 |
GPIO |
gpiochip5 1 |
UIO1 resistance |
|
19 |
GPA2 |
GPIO |
gpiochip5 2 |
UIO1 voltage |
|
20 |
GPA3 |
GPIO |
gpiochip5 3 |
UIO2 voltage |
|
21 |
GPA4 |
GPIO |
gpiochip5 4 |
UIO3 voltage |
|
22 |
GPA5 |
GPIO |
gpiochip5 5 |
UIO1 current |
|
23 |
GPA6 |
GPO |
gpiochip5 6 |
UIO4 I source |
|
24 |
GPA7 |
GPIO |
gpiochip5 7 |
UIO3 current |
|
25 |
GPB0 |
GPIO |
gpiochip5 8 |
UIO2 current |
|
26 |
GPB1 |
GPO |
gpiochip5 9 |
UIO1 I source |
|
27 |
GPB2 |
GPO |
gpiochip5 10 |
UIO2 I source |
|
28 |
GPB3 |
GPO |
gpiochip5 11 |
UIO3 I source |
I2C2
Device name: /dev/i2c-1
|
Signal |
Processor pin |
Default function |
|
Clock |
D10 |
I2C2_SCL |
|
Data |
D9 |
I2C2_SDA |
Expander D
Part number: MCP23017
Expander D diagram
Expander D pins description
|
Pin |
Port |
Type |
User-space name |
Description |
|
1 |
GPB4 |
GPO |
gpiochip6 12 |
LED3 BLUE ON / OFF |
|
2 |
GPB5 |
GPO |
gpiochip6 13 |
LED4 GREEN ON / OFF |
|
3 |
GPB6 |
GPO |
gpiochip6 14 |
OLED ON / OFF |
|
4 |
GPB7 |
GPO |
gpiochip6 15 |
LED4 BLUE ON / OFF |
|
5 |
VDD |
+3V3 |
X |
Power supply |
|
6 |
VSS |
GND |
X |
Ground |
|
7 |
NC1 |
NC |
X |
Not connected |
|
8 |
SCK |
GPIO |
X |
I2C clock |
|
9 |
SDA |
GPIO |
X |
I2C data |
|
10 |
NC2 |
NC |
X |
Not connected |
|
11 |
A0 |
GND |
X |
Address bit 0 |
|
12 |
A1 |
GND |
X |
Address bit 1 |
|
13 |
A2 |
GND |
X |
Address bit 2 |
|
14 |
RESET/ |
NRST_GLOBAL |
X |
Reset |
|
15 |
INTB |
HMI_IRQ |
X |
Interrupt B |
|
16 |
INTA |
HMI_IRQ |
X |
Interrupt A |
|
17 |
GPA0 |
GPI |
gpiochip6 0 |
Joystick left input |
|
18 |
GPA1 |
GPI |
gpiochip6 1 |
Joystick up input |
|
19 |
GPA2 |
GPI |
gpiochip6 2 |
Joystick down input |
|
20 |
GPA3 |
GPI |
gpiochip6 3 |
Joystick right input |
|
21 |
GPA4 |
GPI |
gpiochip6 4 |
Joystick push input |
|
22 |
GPA5 |
GPO |
gpiochip6 5 |
LED3 RED ON / OFF |
|
23 |
GPA6 |
GPI |
gpiochip6 6 |
DIP switch 6 input |
|
24 |
GPA7 |
GPI |
gpiochip6 7 |
DIP switch 7 input |
|
25 |
GPB0 |
GPI |
gpiochip6 8 |
DIP switch 8 input |
|
26 |
GPB1 |
GPO |
gpiochip6 9 |
LED 5 V power supply ON / OFF |
|
27 |
GPB2 |
GPO |
gpiochip6 10 |
LED3 GREEN ON / OFF |
|
28 |
GPB3 |
GPO |
gpiochip6 11 |
LED4 RED ON / OFF |
I2C3
Device name: /dev/i2c-2
|
Signal |
Processor pin |
Default function |
|
Clock |
E10 |
I2C3_SCL |
|
Data |
F10 |
I2C3_SDA |
Expander E
Part number: MCP23017-E/ML
Expander E diagram
Expander E pins description
|
Pin |
Port |
Type |
User-space name |
Description |
|
1 |
GPB4 |
GPI |
gpiochip5 12 |
Digital input 4 (DIO circuit) |
|
2 |
GPB5 |
GPI |
gpiochip5 13 |
Digital input 5 (DIO circuit) |
|
3 |
GPB6 |
GPI |
gpiochip5 14 |
Digital input 6 (DIO circuit) |
|
4 |
GPB7 |
GPI |
gpiochip5 15 |
Digital input 7 (DIO circuit) |
|
5 |
VDD |
+3V3 |
X |
Power supply |
|
6 |
VSS |
GND |
X |
Ground |
|
7 |
NC |
NC |
X |
Not connected |
|
8 |
SCK |
GPIO |
X |
I2C clock |
|
9 |
SDA |
GPIO |
X |
I2C data |
|
10 |
NC |
NC |
X |
Not connected |
|
11 |
A0 |
+3V3 |
X |
Address bit 0 |
|
12 |
A1 |
+3V3 |
X |
Address bit 1 |
|
13 |
A2 |
GND |
X |
Address bit 2 |
|
14 |
RESET/ |
EXP1_NRST |
X |
Reset |
|
15 |
INTB |
GPIO_EXP_INT |
X |
Interrupt B |
|
16 |
INTA |
GPIO_EXP_INT |
X |
Interrupt A |
|
17 |
GPA0 |
GPO |
gpiochip5 0 |
Termination RS485_4 ON / OFF |
|
18 |
GPA1 |
GPO |
gpiochip5 1 |
Termination RS485_3 ON / OFF |
|
19 |
GPA2 |
GPO |
gpiochip5 2 |
Termination RS485_2 ON / OFF |
|
20 |
GPA3 |
GPO |
gpiochip5 3 |
Termination RS485_1 ON / OFF |
|
21 |
GPA4 |
NC |
X |
Not connected |
|
22 |
GPA5 |
NC |
X |
Not connected |
|
23 |
GPA6 |
GPO |
gpiochip5 6 |
Secure chip idle/busy |
|
24 |
GPA7 |
GPI |
gpiochip5 7 |
Digital input 1 (DIO circuit) |
|
25 |
GPB0 |
GPO |
gpiochip5 8 |
Digital input 2 (DIO circuit) |
|
26 |
GPB1 |
GPI |
gpiochip5 9 |
SD detect |
|
27 |
GPB2 |
GPI |
gpiochip5 10 |
VIN level error |
|
28 |
GPB3 |
GPI |
gpiochip5 11 |
Digital input 3 (DIO circuit) |
I2C3
Device name: /dev/i2c-2
|
Signal |
Processor pin |
Default function |
|
Clock |
E10 |
I2C3_SCL |
|
Data |
F10 |
I2C3_SDA |
Expander F
Part number: SC16IS752IBS
Expander F diagram
Expander F pins description
|
Pin |
Type |
Usage |
User-space name |
Description |
|
1 |
RXA(I) |
RS485_UART4_RX |
X |
RS485 UART4 RX |
|
2 |
RESET/ |
RS485_NRST |
X |
Reset |
|
3 |
XTAL1(I) |
TXCO_OUT |
X |
Oscillator output |
|
4 |
XTAL2(O) |
NC |
X |
Not connected |
|
5 |
VDD |
+3V3 |
X |
Power supply |
|
6 |
I2C / SPI/ |
GND |
X |
Ground |
|
7 |
CS/ / A0 |
SPI2_CS2 |
X |
SPI chip select |
|
8 |
SI / A1 |
SPI2_MOSI |
X |
SPI master out slave in |
|
9 |
SO |
SPI2_MISO |
X |
SPI master in slave out |
|
10 |
SCL / SCLK |
SPI2_SCLK |
X |
SPI clock |
|
11 |
SDA / VSS |
GND |
X |
Ground |
|
12 |
VSS |
GND |
X |
Ground |
|
14 |
IRQ/ |
RS485_INT |
X |
RS485 interrupt |
|
15 |
CTSB/ |
NC |
X |
Not connected |
|
16 |
RTSB/ |
RS485_UART3_RTS |
X |
RS485 UART3 RTS |
|
17 |
GPIO0 / DSRB/ |
NC |
X |
Not connected |
|
18 |
GPIO1 / DTRB/ |
NC |
X |
Not connected |
|
19 |
GPIO2 / CDB/ |
NC |
X |
Not connected |
|
20 |
GPIO3 / RIB/ |
NC |
X |
Not connected |
|
22 |
TXB(O) |
RS485_UART3_TX |
X |
RS485 UART3 TX |
|
23 |
RXB(I) |
RS485_UART3_RX |
X |
RS485 UART3 RX |
|
24 |
GPIO4 / DSRA/ |
NC |
X |
Not connected |
|
25 |
GPIO5 / DTRA/ |
NC |
X |
Not connected |
|
26 |
GPIO6 / CDA/ |
NC |
X |
Not connected |
|
27 |
GPIO7 / RIA/ |
NC |
X |
Not connected |
|
30 |
RTSA/ |
RS485_UART4_RTS | X | RS485 UART4 RTS |
|
31 |
CTSA/ |
NC |
X |
Not connected |
|
32 |
TXA(O) |
RS485_UART4_TX |
X |
RS485 UART4 TX |
SPI2
|
Signal |
Processor pin |
Default function |
|
Chip select 0 |
A6 |
SPI2_CS0 |
|
Chip select 1 |
AF12 |
SPI2_CS1 |
|
Chip select 2 |
AB19 |
SPI2_CS2 |
|
Master in slave out |
A8 |
SPI2_MISO |
|
Clock |
E6 |
SPI2_SCLK |
|
Master out slave in |
B8 |
SPI2_MOSI |