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C o m p a c t B o a r d
P C M - 5 8 9 3 / 5 8 9 3 L
Chapter 2 Quick Installation Guide
2 - 23
2.28 KB/MS Connector (CN17)
Pin Signal
Pin Signal
1 Keyboard Data
2
Keyboard Clock
3 GND
4 +5V
5
Mouse Data
6
Mouse Clock
7 N/C
2.29 Digital I/O (CN18)
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 +5V
10
Ground
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)