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Table of Contents
Chapter 1: Introduction ............................................................................................. 1-1
Description ........................................................................................................................................ 1-1
Features ............................................................................................................................................ 1-1
Applications ....................................................................................................................................... 1-1
How to remain CE Compliant ............................................................................................................. 1-2
Specifications .................................................................................................................................... 1-3
Environmental: ............................................................................................................... 1-3
Inputs and Outputs ......................................................................................................... 1-3
Chapter 2: Installation ............................................................................................... 2-1
Hardware Installation .......................................................................................................................... 2-1
Setting Base Address ........................................................................................................................ 2-2
Interrupts ........................................................................................................................................... 2-2
Connector Pin Assignments ........................................................................................................ 2-3
Chapter 3: Programming .......................................................................................... 3-1
Register Access ................................................................................................................................ 3-1
Control Register ................................................................................................................................. 3-2
8255 Mode Definition Format .................................................................................................................... 3-2
Modes of Operation ........................................................................................................................... 3-2
Mode 0 ........................................................................................................................................ 3-2
Mode 1 ........................................................................................................................................ 3-3
Mode 2 ........................................................................................................................................ 3-3
Bit Set/Reset ..................................................................................................................................... 3-3
Bit Set/Reset Format ............................................................................................................................... 3-3
Chapter 4: Peek and Poke Driver .............................................................................. 4-1
Using the Library ............................................................................................................................... 4-1
Visual Basic Declaration Syntax ................................................................................................. 4-3
Installing the Windows NT Peek and Poke Driver ............................................................................... 4-4
Installing the Windows 95 Peek and Poke Driver ................................................................................ 4-5
Deleting Additional Copies of the Windows 95 Peek and Poke Driver ......................................... 4-5
Peek and Poke Driver Troubleshooting ............................................................................................... 4-6
Appendix A: 8255 Data Sheet .................................................................................. A-1
Appendix B: Pinout Drawing ................................................................................... A-1
Содержание DIO24-P
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