Artesyn MVME51005E SBC Installation and Use (July 2014) - Manual (Page 75)

Chapter 5
MVME51005E Single Board Computer Installation and Use (6806800A38D) 77
RAM500 Memory Expansion Module
5.1 Overview
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.
5.2 Features
The following table lists the features of the RAM500 memory expansion module:
Table 5-1 RAM500 Feature Summary
Feature Specification
Form Factor Dual sided mezzanine, with screw/post attachment to host board
SROM Single 256x8 I2C SROM for Serial Presence Detect Data
SDRAM Double-Bit-Error detect, Single-Bit-Error correct across 72 bits
128, 256, or 512MB mezzanine memory @ 100MHz
Memory Expansion
Flexibility Any RAM500 memory size can be attached to the host board
followed by any secondary RAM500 memory size for maximum
memory expansion flexibility.
VMEbus Tundra Universe Controller, 64-bit PCI
Programmable Interrupter & Interrupt Handler
Programmable DMA Controller With Link List Support
Full System Controller Functions