Ram500 Memory Expansion Module; Overview; Features; Functional Description - Emerson MVME51005E Installation And Use Manual

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RAM500 Memory Expansion Module

The RAM500 memory expansion module can be used on the MVME5100 as an option for

additional memory capability. Each expansion module is a single bank of SDRAM with either

256 or 512MB of available ECC memory. Currently, two expansion modules can be used in

tandum to produce an additional expanded memory capability of 1GB. There are two

configurations of the board to accommodate tandum usage. The bottom expansion module has

both a bottom and top connector: one to plug into the base board, and one to mate with the

second RAM500 module. The top expansion module is designed with just a bottom connector

to plug into the lower RAM500 module. The RAM500 incorporates a Serial ROM for system

memory Serial Presence Detect (SPD) data.

A maximum of two expansion modules are allowed: one bottom and one top. If only one module

is used, the RAM500 module with the top configuration is recommended.

The following table lists the features of the RAM500 memory expansion module:

Form Factor

SROM

SDRAM

Memory Expansion

Flexibility

The following sections describe the physical and electrical structure of the RAM500 memory

expansion module.

Dual sided mezzanine, with screw/post attachment to host board

Single 256x8 I

C SROM for Serial Presence Detect Data

Double-Bit-Error detect, Single-Bit-Error correct across 72 bits

128, 256, or 512MB mezzanine memory @ 100MHz

Any RAM500 memory size can be attached to the host board

followed by any secondary RAM500 memory size for maximum

memory expansion flexibility.

MVME51005E Single Board Computer Installation and Use (6806800A38B)

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