Xycom XVME-202, Руководство пользователя

Страница: 5 / 40

XVME-202 Manual
December, 1986
Chapter 1
INTRODUCTION
1 . 1 O V E R V I E W
The XVME-202 PAMUX Interface Module is a single high, VMEbus compatible board
which allows a VMEbus master to communicate with a PAMUX I/O subsystem. The
specific features of the XVME-202 Interface Module are listed below:
Directly compatible with PAMUX I/O system.
16 PAMUX units can be addressed from one module providing up to
5 12 I/O points.
Termination resistors provided on board.
Connection is made via a 50 conductor ribbon cable.
Cable length can be up to 500 feet.
The XVME-202
module address occupies a 1K block of the VMEbus short I/O Address Space. The
decode logic allows the user to select (via 6 jumpers) any one of 64
of the 1K boundaries in the short I/O Address Space to be used as the module base
address.
The module’s Internal Registers are accessible at specific addresses offset
from the selected module base address.
1.2 MANUAL STRUCTURE
This manual consists of three chapters which divide the various aspects of module
specification and operation into three distinct areas.
The three chapters
develop
these
aspects in the following progression:
Chapter One - A general description of
the
XVME-202 PAMUX Interface
Module, including complete functional and environmental specifications,
VME bus
compliance information, and a block diagram.
Chapter Two - Module installation information covering module specific system
requirements, jumpers, and connector pinouts.
Chapter Three - Details covering functional addressing, and programming
considerations.
The Appendices are designed to provide additional information in terms of
the
backplane signal/pin descriptions, a block diagram and assembly drawing,
and module
schematics.
1-l