MVME5100 Single Board Computer Programmer's Reference Guide

3
System Memory Controller (SMC)
ram a-h
siz0-3
Table 3-10. Block_A/B/C/D/E/F/G/H Configurations
Component
Configuration
Number of
SDRAM
Components
In the Block
Block
SIZE
SDRAM
Technology
%0000 - - 0MBytes -
%0001 4Mx16 5 32MBytes 64Mbit
%0010 8Mx8 9 64MBytes 64Mbit
%0011 8Mx16 5 64MBytes 128Mbit
%0100 16Mx4 18 128MBytes 64Mbit
%0101 16Mx8 9 128MBytes 128Mbit
%0110 16Mx16 5 128MBytes 256Mbit
%0111 32Mx4 18 256MBytes 128Mbit
%1000 32Mx8 9 256MBytes 256Mbit
%1001 64Mx4 18 512MBytes 256Mbit
%1010
-
%1111
Reserved - - -
Notes 1. All SDRAM components should be organized with 4
internal banks.
2. When DIMMs are used, the Component Configuration
refers to the configuration of the devices used on the DIMMs.
3. It is important that all of the ram a/b/c/d/e/f/g/h siz0-3 bits be
set to accurately match the actual size of their corresponding
blocks. This includes clearing them to binary 00000 if their
corresponding blocks are not present. Failure to do so will cause
problems with addressing and with scrub logging.
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