LSI Logic Confidential
13-2
SDRAM Interface
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
•
Four slots, each supporting one 8 Mbytes or 16 Mbytes chip.
•
32-bit external interface.
•
Support for x32 and x16 SDR/DDR DRAM chips
•
4 banks (minimum) per DRAM chip
•
All external parts have the same configuration, i.e. same timing
requirements, same RAS/CAS/BS sizes, and all are either SDRAMs
or DDRs.
Example configurations are shown in
Table 13.1
Supported DRAM Types
1
Type
Part
Quantity
Config
Total MG
SDR SDRAM
512 K x 32 b x 4 Banks
1 or 2
stacked
8–16 Mbytes
SDR SDRAM
1 M x 16 b x 4 Banks
2 or 4
stacked
pairs
16–32 Mbytes
SDR SDRAM
2 M x 16 b x 4 Banks
2 or 4
stacked
pairs
32–64 Mbytes
DDR SDRAM
512 K x 32 b x 4 Banks
1 or 2
stacked
8–16 Mbytes
DDR SDRAM
512 K x 32 b x 8 Banks
1or 2
stacked
16–32 Mbytes
DDR SDRAM
1 M x 32 b x 4 Banks
1or 2
stacked
16–32 Mbytes
DDR SDRAM
1 M x 32 b x 8 Banks
1or 2
stacked
32–64 Mbytes
DDR SDRAM
2 M x 32 b x 4 Banks
1or 2
stacked
32–64 Mbytes
DDR SDRAM
1 M x 16 b x 4 Banks
2 or 4
stacked
pairs
16–32 Mbytes
DDR SDRAM
2 M x 16 b x 4 Banks
2 or 4
stacked
pairs
32–64 Mbytes
1. HDTV requires 8 banks (two 4 bank or one 8 bank part) and 150 MHz.
Содержание DMN-8600
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