Aaeon GENE-9455 - Digital I;O Connector (CN20)

SubCompact Board GENE-9455
Chapter 2 Quick Installation Guide 2-23
37 Ground 38 VSYNC
39 BLUE 40 Ground
41 DDCDATA 42 RED
43 CRT_PLUG#
2.34 Digital I/O Connector (CN20)
Pin Signal Pin Signal
1 Port 1 2 Port 2
3 Port 3 4 Port 4
5 Port 5 6 Port 6
7 Port 7 8 Port 8
9 +5 Volt. 10 Ground
The pin definitions and registers mapping are illustrated below:
Address: 680,682,684H
BIOS Setting
Connector
Definition
Address
IT8712 GPIO
Setting
Port 8 @684h CN22 Pin 8 GPIO Set 5 / Bit 2 U9 Pin 9 (GPIO 52)
Port 7 @684h CN22 Pin 7 GPIO Set 5 / Bit 1 U9 Pin 10 (GPIO 51)
Port 6 @682h CN22 Pin 6 GPIO Set 3 / Bit 7 U9 Pin 11 (GPIO 37)
Port 5 @682h CN22 Pin 5 GPIO Set 3 / Bit 6 U9 Pin 12 (GPIO 36)
Port 4 @680h CN22 Pin 4 GPIO Set 1 / Bit 4 U9 Pin 31 (GPIO 14)
Port 3 @680h CN22 Pin 3 GPIO Set 1 / Bit 3 U9 Pin 32 (GPIO 13)
Port 2 @680h CN22 Pin 2 GPIO Set 1 / Bit 2 U9 Pin 33 (GPIO 12)
Port 1 @680h CN22 Pin 1 GPIO Set 1 / Bit 1 U9 Pin 34 (GPIO 11)