Measurement Computing CIO-INT-32 - Manual (Page 5)

1.0 INTRODUCTION
This manual provides technical information for the CIO-INT32. It is intended to be
used with the ZILOG 8536 integrated circuit data sheet and programming manual.
The CIO-INT32 can accept up to 32 vector interrupts and output an interrupt to the
PC. The board contains two Z8536 chips each of which accepts up to 16 independent
inputs that can be used to generate interrupts from bit patterns or individual bit states
or transitions.
The interrupt outputs from two X8536 chips can be ANDed by an on-board jumper.
Many other functions can be performed by the CIO-INT32 including digital pattern
recognition, counting with six, 16-bit counters, and up to 40 bits of digital I/O.
The 16-bit counters can be set up independently or chained together in groups of
three.
The CIO-INT32 is shipped with InstaCal TM , a package of software for installation and
testing of the board
In addition, the board can be supported by the Universal Library TM which provides
programming support for all Windows languages.
The CIO-INT32 has a pair of Z8536 I/O chips interfaced to the ISA bus. All of its I/O
lines are accessible through a 50-pin header connector. The I/O pins of an Z8536 are
TTL levels. Connections to the board typically use the C50FF-# cable and the
CIO-MINI50 terminal board.
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