National Instruments PC-DIO-24 Manuals

National Instruments PC-DIO-24 Manuals

Manuals and User Guides for National Instruments PC-DIO-24. We have 1 National Instruments PC-DIO-24 manual available for free PDF download: User Manual

National Instruments PC-DIO-24 User Manual

National Instruments PC-DIO-24 User Manual (75 pages)

Digital I/O Board for the IBM PC/XT/AT

Brand: National Instruments | Category: Network Hardware | Size: 1.32 MB

Table of Contents

User Manual
1
Limited Warranty
3
Canadian Department of Communications
5
Federal Communications Commission
5
Table of Contents
6
About this Manual

9
Chapter 1 Introduction

12
Chapter 2 Configuration and Installation

18
Chapter 3 Theory of Operation

29
- Figure 3-1. PC-DIO-24 Block Diagram
  29
  - Address Decoder
    30
  - Bus Transceivers
    30
  - PC I/O Channel Control Circuitry
    30
  - 82C55A Programmable Peripheral Interface
    30
  - Interrupt Control Circuitry
    30
  - Digital I/O Connector
    30
Chapter 4 Register-Level Programming

31
- Introduction
  31
- 82C55A Modes of Operation
  31
  - Mode 0
    32
  - Mode 1
    32
  - Mode 2
    32
  - Single Bit Set/Reset Feature
    32
- Register Map
  33
- Register Descriptions
  33
- Programming Considerations
  35
- Interrupt Handling
  45
- Table 4-4. Interrupt Enable Signals for All Mode Combinations
  46
Appendix A Specifications

47
- Table A-1. Maximum Average Transfer Rates for the PC-DIO-24
  48
Appendix B I/O Connector

49
- Figure B-1. PC-DIO-24 I/O Connector
  49
Appendix C

50
OKI 82C55A Data Sheet

50
Appendix D

67
Customer Communication

67
- Other Products
  69
Glossary

71
Index

72

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