BIOS Setup Information
WADE-8011/WADE-8012 User’s Manual
3-9
The control for the GPIO signals is handled through a separate 2-byte I/O space.
J14: General Purpose I/O Connector
Pin No.
Signal Description
Pin No.
Signal Description
1 GPIO0
2 GPIO8
3 GPIO1
4 GPIO9
5 GPIO2
6 GPIO10
7 GPIO3
8 GPIO11
9
GPIO4 10
GPIO12
11 GPIO5
12 GPIO13
13 GPIO6
14 GPIO14
15 GPIO7
16 GPIO15
17 Ground
18 +5V
Note:
All General Purpose I/O ports can only apply to standard TTL ± 5% signal level
(0V/5V), and each Fan.
GPIO Control Command Example (C Language)
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define SIO_Port 0x2E
#define SIO_Port2 0x4E
#define GPIO_LDN 0x07
#define GPIO_Base 0x0A00
//Enter SIO
void Enter_IT872x_SIO() {
outp(SIO_Port, 0x87);
outp(SIO_Port, 0x01);
outp(SIO_Port, 0x55);
outp(SIO_Port, 0x55);
