© National Instruments Corporation
vPC-DIO-96 User Manual
Contents

Chapter 1
About This Manual............................................................................................................ v
Organization of This Manual ........................................................................................ v
Conventions Used in This Manual ................................................................................ vi
National Instruments Documentation............................................................................ vii
Related Documentation ................................................................................................. vii
Chapter 1
Introduction.......................................................................................................................... 1-1
About the PC-DIO-96 ................................................................................................... 1-1
What You Need to Get Started...................................................................................... 1-2
Software Programming Choices.................................................................................... 1-2
LabVIEW and LabWindows/CVI Application Software.................................. 1-2
NI-DAQ Driver Software .................................................................................. 1-3
Register-Level Programming ............................................................................ 1-4
Optional Equipment ...................................................................................................... 1-4
Cabling .............................................................................................................. 1-4
Unpacking ..................................................................................................................... 1-5

Chapter 2

Configuration and Installation ..................................................................................... 2-1
Board Configuration...................................................................................................... 2-1
Base I/O Address Settings................................................................................. 2-2
Interrupt Level Selection ................................................................................... 2-5
Installation ..................................................................................................................... 2-5
Signal Connections........................................................................................................ 2-6
I/O Connector Pin Description .......................................................................... 2-7
I/O Connector Signal Connection Descriptions ................................................ 2-8
Port C Pin Assignments......................................................................... 2-8
Cable Assembly Connectors ............................................................................. 2-9
Digital I/O Signal Connections ......................................................................... 2-12
Power Connections............................................................................................ 2-13
Timing Specifications........................................................................................ 2-14
Mode 1 Input Timing ............................................................................ 2-15
Mode 1 Output Timing.......................................................................... 2-16
Mode 2 Bidirectional Timing ................................................................ 2-17

Chapter 3

Theory of Operation.......................................................................................................... 3-1
Data Transceivers .......................................................................................................... 3-2
PC I/O Channel Control Circuitry................................................................................. 3-2
82C55A Programmable Peripheral Interface ................................................................ 3-2
8253 Programmable Interval Timer .............................................................................. 3-2
Interrupt Control Circuitry ............................................................................................ 3-2
Digital I/O Connector.................................................................................................... 3-3