Introduction; Dio Connector Pinouts - IEI Technology KINO-PVN-D5251 User Manual

D.1 Introduction
The DIO connector on the KINO-PVN-D5251/D4251 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.
D.2 DIO Connector Pinouts
The following table describes how the DIO connector pins are connected to the Super I/O
GPIO port 1.
Pin Description
1 Ground
2 VCC
3 Output 3
4 Output 2
5 Output 1
6 Output 0
7 Input 3
8 Input 2
9 Input 1
10 Input 0
Table D-1: Digital I/O Connector Pinouts
Page 124
KINO-PVN-D5251/D4251/ Mini ITX SBC
Pin Description
N/A N/A
N/A N/A
GP27 General purpose I/O port 2 bit 7.
GP26 General purpose I/O port 2 bit 6.
GP25 General purpose I/O port 2 bit 5.
GP24 General purpose I/O port 2 bit 4.
GP23 General purpose I/O port 2 bit 3.
GP22 General purpose I/O port 2 bit 2
GP21 General purpose I/O port 2 bit 1
GP20 General purpose I/O port 2 bit 0