Manual

PPC-51xxA-G41/WIDS-51xA-G41 Panel PC
Page 126
C.1 Introduction
The DIO connector on the PPC-51xxA-G41/WIDS-51xA-G41 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 Super I/O.
Pin Description Super I/O Pin Super I/O Pin No.
1 Ground N/A N/A
2 +5 V N/A N/A
3 Input 0 GP20 27
4 Output 0 GP14 31
5 Input 1 GP21 26
6 Output 1 GP15 30
7 Input 2 GP22 25
8 Output 2 GP16 29
9 Input 3 GP23 24
10 Output 3 GP17 28