Expanders
Expander A
Part number: 74HC595BQ
Expander A diagram
Expander A pins description
|
Pin |
Type |
Usage |
User space name |
Description |
|---|---|---|---|---|
|
15 |
Q0 |
MUX_DIO_SEL |
gpiochip8 0 |
MUX_PWM selection signal |
|
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 |
Q7S_DATA |
X |
First shift register signal |
|
11 |
SHCP |
SPI1_SCLK |
X |
SPI clock |
|
12 |
STCP |
SPI1_CS0 |
X |
SPI chip select |
|
14 |
DS |
SPI1_MOSI |
X |
SPI master out slave in |
{{@134#bkmrk-spi1}}
{{@134#bkmrk-signal-processor-pin}}
Expander B
Part number: (...)
Expander B diagram
(...)
Expander B pins description
(...)
Expander C
Part number: MCP23017-E/ML
Expander C diagram
Expander C pins description
|
Pin |
Port |
Type |
User space name |
Description |
|
17 |
GPA0 |
GPO |
gpiochip6 0 |
UIO3 configuration |
|
18 |
GPA1 |
GPO |
gpiochip6 1 |
UIO3 configuration |
|
19 |
GPA2 |
GPO |
gpiochip6 2 |
UIO1 configuration |
|
20 |
GPA3 |
GPO |
gpiochip6 3 |
UIO1 configuration |
|
21 |
GPA4 |
GPO |
gpiochip6 4 |
UIO1 configuration |
|
22 |
GPA5 |
GPO |
gpiochip6 5 |
UIO2 configuration |
|
23 |
GPA6 |
GPO |
gpiochip6 6 |
UIO3 configuration |
|
24 |
GPA7 |
GPO |
gpiochip6 7 |
UIO4 configuration |
|
25 |
GPB0 |
GPO |
gpiochip6 8 |
UIO4 configuration |
|
26 |
GPB1 |
GPO |
gpiochip6 9 |
UIO4 configuration |
|
27 |
GPB2 |
GPO |
gpiochip6 10 |
UIO1 configuration |
|
28 |
GPB3 |
GPO |
gpiochip6 11 |
UIO2 configuration |
|
1 |
GPB4 |
GPO |
gpiochip6 12 |
UIO3 configuration |
|
2 |
GPB5 |
GPO |
gpiochip6 13 |
UIO4 configuration |
|
3 |
GPB6 |
GPO |
gpiochip6 14 |
UIO2 configuration |
|
4 |
GPB7 |
GPO |
gpiochip6 15 |
UIO2 configuration |
|
8 |
SCK |
GPIO |
X |
I2C4 clock |
|
9 |
SDA |
GPIO |
X |
I2C4 data |
{{@134#bkmrk-i2c4}}
{{@134#bkmrk-device-name%3A-%2Fdev%2Fi2-1}}
{{@134#bkmrk-signal-processor-pin-3}}