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PC-DIO-24
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Appendix C
OKI 82C55A Data Sheet
PC
-DIO-24 User Manual
C-12
©
National Instruments Corporation
Contents
Main
Page
Limited Warranty
Copyright
Trademarks
Page
FCC/DOC Radio Frequency Interference Compliance
Federal Communications Commission
Canadian Department of Communications
Instructions to Users
Contents
Chapter 1 Introduction
Chapter 2 Configuration and Installation
Chapter 3 Theory of Operation
Page
Figures
Tables
About This Manual
Organization of This Manual
Conventions Used in This Manual
National Instruments Documentation
Related Documentation
Customer Communication
Chapter 1 Introduction
About the PC-DIO-24
What You Need to Get Started
Software Programming Choices
LabVIEW and LabWindows/CVI Application Software
NI-DAQ Driver Software
Register-Level Programming
Optional Equipment
Custom Cables
Page
Unpacking
Chapter 2 Configuration and Installation
Board Configuration
Base I/O Address Settings
Page
Interrupt Selection
Installation
Configuration and Installation Chapter 2
PC-DIO-24 User Manual 2-6 National Instruments Corporation
Signal Connections
I/O Connector Pin Description
Figure 2-5. Digital I/O Connector Pin Assignments
Signal Connection Descriptions
Timing Specifications
Page
Page
Page
Chapter 3 Theory of Operation
Address Decoder
Bus Transceivers
PC I/O Channel Control Circuitry
82C55A Programmable Peripheral Interface
Interrupt Control Circuitry
Chapter 4 Register-Level Programming
Introduction
82C55A Modes of Operation
Mode 0
Mode 1
Mode 2
Single Bit Set/Reset Feature
Register Map
Register Descriptions
Register-Level Programming Chapter 4
PC-DIO-24 User Manual 4-4 National Instruments Corporation
a. Mode Set Word Format
Single Bit Set/Reset Feature
Programming Considerations
Mode 0Basic I/O
Page
Mode 1Strobed Input
Page
Mode 1 Input Programming Example
Mode 1Strobed Output
Page
Mode 1 Output Programming Example
Mode 2Bidirectional Bus
Page
Interrupt Programming Examples
Interrupt Handling
Page
Appendix A Specifications
Digital I/O
Digital Logic Levels
Input Signals
Output Signals
Physical
Power Requirement (from PC I/O Channel)
Transfer Rates
National Instruments Corporation B-1 PC-DIO-24 User Manual
Appendix B I/O Connector
Appendix
C
OKI 82C55A Data Sheet
Page
Page
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Page
Page
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Appendix D Customer Communication
Technical Support Form
PC-DIO-24 Hardware and Software Configuration Form
National Instruments Products
Other Products
Documentation Comment Form
Glossary
Index
A
B
C
D
I
J
L
M
N
O
P
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