National Instruments PC-TIO-10 User Manual page 5

Preface
Introduction to the PC-TIO-10
This manual describes the mechanical and electrical aspects of the PC-TIO-10 and contains
information concerning its operation and programming. The PC-TIO-10 is a timing and digital
I/O interface for the PC. Two Advanced Micro Devices (AMD) Am9513A System Timing
Controllers (STCs) are used for the timing interface. With these chips, which feature many
different timing and counting modes, the PC-TIO-10 can perform a wide range of pulse
measurement and wave generation functions. A Motorola MC6821 Peripheral Interface Adapter
(PIA) is used for the digital I/O interface; each of the two 8-bit I/O ports is bit-configurable. In
addition, the PC-TIO-10 has two edge-sensitive interrupt inputs with programmable edge
selection. Any external transistor-transistor logic (TTL) signal, including any of the counter
outputs, can be connected to these interrupt inputs.
This manual describes installation, theory of operation, and basic programming considerations
for the PC-TIO-10. The example programs included are written in C and assembly language.
Organization of This Manual
This manual is divided into the following chapters and appendixes:
• Chapter 1, Introduction, describes the PC-TIO-10, lists the contents of your PC-TIO-10 kit,
lists the optional software and equipment for use with the PC-TIO-10, and explains how to
unpack the PC-TIO-10 kit.
• Chapter 2, Configuration and Installation, describes the PC-TIO-10 jumper configurations,
installation of the PC-TIO-10 board in your computer, signal connections to the PC-TIO-10
board, and cabling instructions.
• Chapter 3, Theory of Operation, explains the basic operation of the PC-TIO-10 circuitry.
• Chapter 4, Programming, describes in detail the address and function of each of the
PC-TIO-10 control and status registers. This chapter also includes important information
about programming the PC-TIO-10.
• Appendix A, Specifications, lists the specifications of the PC-TIO-10.
• Appendix B, I/O Connector, describes the pinout and signal names for the I/O connector on
the PC-TIO-10.
• Appendix C, AMD Am9513A Data Sheet, contains the manufacturer data sheet for the AMD
Am9513A integrated circuit. This circuit is used on the PC-TIO-10 board.
• Appendix D, Motorola MC6821 Data Sheet, contains the manufacturer data sheet for the
Motorola MC6821 integrated circuit. This circuit is used on the PC-TIO-10 board.
• Appendix E, Switch Settings, lists the possible switch settings, the corresponding base I/O
address, and the base I/O address space used for that setting.
© National Instruments Corporation v PC-TIO-10 User Manual