Owner's manual

PCISA-945GSE CPU Card
Page 159
C.1 Introduction
The DIO connector on the PCISA-945GSE is interfaced to GPIO ports on the Super I/O
chipset. The DIO has both 4-bit digital inputs and 4-bit digital outputs. The digital inputs
and digital outputs are generally control signals that control the on/off circuit of external
devices or TTL devices. Data can be read or written to the selected address to enable the
DIO functions.
NOTE:
For further information, please refer to the datasheet for the Super I/O
chipset.
C.2 DIO Connector Pinouts
The following table describes how the DIO connector pins are connected to the Digital I/O
port.
Pin Description Super I/O Pin Super I/O Pin Description
1 Ground N/A N/A
2 VCC N/A N/A
3 Output 3 24 General Purpose I/O 23
4 Output 2 25 General Purpose I/O 22
5 Output 1 26 General Purpose I/O 21
6 Output 0 27 General Purpose I/O 20
7 Input 3 16 General Purpose I/O 33
8 Input 2 17 General Purpose I/O 32
9 Input 1 18 General Purpose I/O 31
10 Input 0 19 General Purpose I/O 30
Table C-1: Digital I/O Connector Pinouts