AAEON PCM-9452 - Manual (Page 33)

C o m p a c t B o a r d P C M - 9 4 5 2
Chapter 2 Quick Installation Guide 2-20
2.35 COM Port 3 Connector (CN20)
Pin Signal Pin Signal
1 DCDC 2 RXC
3 TXC 4 DTRC
5 Ground 6 DSRC
7 RTSC 8 CTSC
9 RIC 10 N/C
2.36 Digital I/O Connector (CN22)
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
Mapping Table
(Digital I/O Address is 801H)
BIOS
Setting Connector
Definition
Address
IT8712 GPIO
Setting
Port 8 CN22 Pin 8 Bit 7 U22 Pin 20 (GPIO 27)
Port 7 CN22 Pin 7 Bit 6 U22 Pin 21 (GPIO 26)
Port 6 CN22 Pin 6 Bit 5 U22 Pin 22 (GPIO 25)
Port 5 CN22 Pin 5 Bit 4 U22 Pin 23 (GPIO 24)
Port 4 CN22 Pin 4 Bit 3 U22 Pin 24 (GPIO 23)
Port 3 CN22 Pin 3 Bit 2 U22 Pin 25 (GPIO 22)