beautypg.com

A: gpi/o p, Ppendix, Rogramming – NEXCOM NISE 104 User Manual

Page 75: Uide

background image

Copyright © 2012 NEXCOM International Co., Ltd. All Rights Reserved.

61

NISE 104 User Manual

Appendix A: GPI/O Programming Guide

a

PPendIx

a: GPI/o P

roGrammInG

G

uIde

Digital I/O (Digital Input/Output) pins are provided for custom system design.
This appendix provides definitions and its default setting for the Digital I/O
pins in the NISE 104. The pin definition is shown is the following table:

PIN

Description

PIN

Description

1

+5V

2

GND

3

GPO24

4

GPI20

5

GPO25

6

GPI21

7

GPO26

8

GPI22

9

GPO27

10

GPI23

IO base address : A00h
Bit0 : GPI20
Bit1 : GP I21
Bit2 : GP I22
Bit3 : GP I23
Bit4 : GPO24
Bit5 : GPO25
Bit6 : GPO26
Bit7 : GPO27

1. Read/Write GPIO data by I/O port A04h