AAEON EPIC-9457 Rev.A - Manual (Page 32)

E P I C B o a r d E P I C - 9 4 5 7 R e v . A
Chapter 2 Quick Installation Guide 2-19
2.27 Digital I/O Connector (CN14)
Pin Signal Pin Signal
1 Port1 2 Port2
3 Port3 4 Port4
5 Port5 6 Port6
7 Port7 8 Port8
9 +5V 10 GND
Mapping Table:
BIOS
Setting Connector
Definition
Address
IT8781 GPIO
Setting
Port 8 @684h CN14 Pin 8 GPIO Set 5 / Bit 2 U26 Pin 9 (GPIO 52)
Port 7 @684h CN14 Pin 7 GPIO Set 5 / Bit 1 U26 Pin 10 (GPIO 51)
Port 6 @682h CN14 Pin 6 GPIO Set 3 / Bit 7 U26 Pin 11 (GPIO 37)
Port 5 @682h CN14 Pin 5 GPIO Set 3 / Bit 6 U26 Pin 12 (GPIO 36)
Port 4 @680h CN14 Pin 4 GPIO Set 1 / Bit 4 U26 Pin 31 (GPIO 14)
Port 3 @680h CN14 Pin 3 GPIO Set 1 / Bit 3 U26 Pin 32 (GPIO 13)
Port 2 @680h CN14 Pin 2 GPIO Set 1 / Bit 2 U26 Pin 33 (GPIO 12)
Port 1 @680h CN14 Pin 1 GPIO Set 1 / Bit 1 U26 Pin 34 (GPIO 11)
Digital I/O Address is 680,682,684H
2.28 Power Output Connector (CN15)
Pin Signal Pin Signal
1 +12V 2 GND
3 GND 4 +5V