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Mini-ITX Mainboard Manual
JDIO1: Digital I/O Connector
This connector offers 4-pair of digital I/O functions and address is set in BIOS.
The default address is: A21H: Output bit0~3; A22H: Input bit0~3.
*How to Setup Jumpers
The illustration shows how to set up jumpers. When the jumper cap is placed on
pins, the jumper is "close", if not, that means the jumper is "open".
Pin opened
18
9
1
10
2
Pin closed
Pin
Assignment
1
5V
2
Digital-In-30
3
Digital-Out-20
4
Digital-In-31
5
Digital-Out-21
6
Digital-In-32
7
Digital-Out-22
8
Digital-In-33
9
Digital-Out-23
10
GND
Pin1-2 closed
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