Dio address is 801h – AAEON PCM-5895 Rev.A User Manual
Page 36
C o m p a c t B o a r d
P C M - 5 8 9 5
Chapter 2 Quick Installation Guide
2- 24
DIO Address is 801H
BIOS Setting Connector Definition
Address IT8712 GPIO Setting
Port 1
CN18. pin 1
Bit 7
U40. pin 20 (GPIO27)
Port 2
CN18. pin 2
Bit 6
U40. pin 21 (GPIO26)
Port 3
CN18. pin 3
Bit 5
U40. pin 22 (GPIO25)
Port 4
CN18. pin 4
Bit 4
U40. pin 23 (GPIO24)
Port 5
CN18. pin 5
Bit 3
U40. pin 24 (GPIO23)
Port 6
CN18. pin 6
Bit 2
U40. pin 25 (GPIO22)
Port 7
CN18. pin 7
Bit 1
U40. pin 26 (GPIO21)
Port 8
CN18. pin 8
Bit 0
U40. pin 27 (GPIO20)
2.29 Serial Port (CN19)
Note: COM 1 & COM 2 support full modem control signals and COM 3 &
COM 4 support TX & RX only.
COM/ RS-232 mode
Pin Signal
Pin Signal
1
DCD1
2
DSR1
3
RXD1
4
RTS1
5
TXD1
6
CTS1
7
DTR1
8
RI1/+5V/+12V
9
GND
10
N.C.
11
DCD2
12
DSR2
13
RXD2
14
RTS2