Header Pin
|
GPIO
|
Alternative Function
|
Notes
|
1
|
GPIO8
|
I2C SCL
|
Pulled up 1.5KOhm DB9.8
|
2
|
GPIO9
|
I2C SDA
|
Pulled up 1.5KOhm DB9.6
|
3
|
GPIO10
|
RS232 RXD_TTL
|
For Configurations with RS232 or RS485
|
4
|
GPIO11
|
RS232 TXD_TTL
|
5
|
GPIO12
|
|
|
6
|
GPIO13
|
|
|
7
|
GPIO14
|
MDC
|
|
8
|
GPIO15
|
MDIO
|
|
9
|
GPIO24
|
PWM_0, SCLx0, MISOx0¹
|
|
10
|
GPIO25
|
PWM_1, SDAx0, MOSIx0¹
|
|
11
|
GPIO26
|
PWM_2, SCLx1, SCKx0¹
|
|
12
|
GPIO27
|
PWM_3, SDAx1, SSx0¹
|
|
13
|
GPIO28
|
PWM_4, SCLx2, MISOx1¹, UARTx0_RX¹
|
|
14
|
GPIO29
|
PWM_5, SDAx2, MOSIx1¹, UARTx0_TX¹
|
|
15
|
GPIO30
|
PWM_6, SCLx3, SCKx1¹, UARTx1_RX¹
|
|
16
|
GPIO31
|
PWM_7, SDAx3, SSx1¹, UARTx1_TX¹
|
|
17
|
GPIO0
|
LCD_D0
|
For Configurations with LCD
|
18
|
GPIO1
|
LCD_D1
|
19
|
GPIO2
|
LCD_D2
|
20
|
GPIO3
|
LCD_D3
|
21
|
GPIO4
|
IR_TX
|
For Configurations with IR
|
22
|
GPIO5
|
|
|
23
|
GPIO6
|
LCD_En
|
For Configurations with LCD
|
24
|
GPIO7
|
LCD_RS
|
25
|
GPIO23
|
ADC7
|
|
26
|
GPIO22
|
ADC6
|
|
27
|
GPIO21
|
ADC5
|
|
28
|
GPIO20
|
ADC4
|
|
29
|
GPIO19
|
ADC3
|
|
30
|
GPIO18
|
ADC2
|
|
31
|
GPIO17
|
ADC1
|
|
32
|
GPIO16
|
ADC0
|
|
33
|
VCC
|
|
34
|
GND
|
|
¹ - Under development
|