AAEON GENE-9455 Rev.А - Manual (Page 35)

S u b C o m p a c t B o a r d G E N E - 9 4 5 5
Chapter 2 Quick Installation Guide 2-23
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 CN20 Pin 8 GPIO Set 5 / Bit 2 U9 Pin 9 (GPIO 52)
Port 7 @684h CN20 Pin 7 GPIO Set 5 / Bit 1 U9 Pin 10 (GPIO 51)
Port 6 @682h CN20 Pin 6 GPIO Set 3 / Bit 7 U9 Pin 11 (GPIO 37)
Port 5 @682h CN20 Pin 5 GPIO Set 3 / Bit 6 U9 Pin 12 (GPIO 36)
Port 4 @680h CN20 Pin 4 GPIO Set 1 / Bit 4 U9 Pin 31 (GPIO 14)
Port 3 @680h CN20 Pin 3 GPIO Set 1 / Bit 3 U9 Pin 32 (GPIO 13)
Port 2 @680h CN20 Pin 2 GPIO Set 1 / Bit 2 U9 Pin 33 (GPIO 12)
Port 1 @680h CN20 Pin 1 GPIO Set 1 / Bit 1 U9 Pin 34 (GPIO 11)
2.34 Onboard BIOS Programming I/F (CN21)
Pin Signal Pin Signal
1 +3.3 Volt. 2 Ground
3 SPI_CE# 4 SPI_CLK
5 SPI_SO 6 SPI_SI
7 N/C 8 N/C
2.35 External AUX Power and PSON# (CN22) (Optional)
Pin Signal
1 N/C
2 Ground