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Chapter 5 - MEMORY EXPANSION MODULE INSTALLATION
5.1 I N T R O D U C T I O N
The XVME-956/101 Memory Expansion Module (MEM) is an embedded system module which
provides a convenient means to expand your Xycom VME AT system. I n addition, with the use of the
XVME-971 MS-DOS Solid State Disk software package, the XVME-956/101 allows replacement of
mechanical disk drives for use in embedded systems.* The XVME-956/101 MEM four byte-wide
memory sockets are organized into two groups of two sockets each. Each group can be configured for
a different type of memory device, allowing many possible memory configurations. A l l of the 32 to
512 Kbyte static RAMs, as well as many types of Flash EPROMs are supported.
This chapter describes how to configure and install the memory expansion module. Before using the
memory expansion module, install the memory devices and verify the jumper settings.
5.2 J U M P E R CONFIGURATION SUMMARY
Table 5-1 summarizes the expansion module unit's configuration jumpers.
Table 5-1. Jumper Option Summary
JUMPER
FUNCTION
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
J2
J3
J4
J5
Write enable/protect for devices in sockets A and B
Jumpering for Sockets A and B
Jumpering for Sockets A and B
Jumpering for Sockets A and B
Interrupt Level Selection
Write enable/protect for devices in sockets E and F
Jumpering for Sockets E and F
Jumpering for Sockets E and F
Jumpering for Sockets E and F
Power fail trip point
Board number, I/O port, Memory window address
Reserved
Flash EPROM programming enable
External backup battery #1 connector
External backup battery #2 connector
*For information regarding the use of the XVME-956/101 as a Solid State Disk, please refer to the
XVME-971 package and manual.
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