Digi NS9215 - Manual (Page 249)

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M E M O R Y C O N T R O L L E R
Dynamic Memory Configuration 0–3 registers
www.digiembedded.com 249
Address mapping
for the Dynamic
Memory
Configuration
registers
The next table shows address mapping for the Dynamic Memory Configuration 0-3
registers. Address mappings that are not shown in the table are reserved.
[14] [12] [11:9] [8:7] Description
16-bit external bus high-performance address mapping (row, bank column)
0 0 000 00 16 Mb (2Mx8), 2 banks, row length=11, column length=9
0 0 000 01 16 Mb (1Mx16), 2 banks, row length=11, column length=8
0 0 001 00 64 Mb (8Mx80, 4 banks, row length=12, column length=9
0 0 001 01 64 Mb (4Mx16), 4 banks, row length=12, column length=8
0 0 010 00 128 Mb (16Mx8), 4 banks, row length=12, column length=10
0 0 010 01 128 Mb (8Mx16), 4 banks, row length=12, column length=9
0 0 011 00 256 Mb (32Mx8), 4 banks, row length=13, column length=10
0 0 011 01 256 Mb (16Mx16), 4 banks, row length=13, column length=9
0 0 100 00 512 Mb (64Mx8), 4 banks, row length=13, column length=11
0 0 100 01 512 Mb (32Mx16), 4 banks, row length=13, column length=10
16-bit external bus low-power SDRAM address mapping (bank, row, column)
0 1 000 00 16 Mb (2Mx8), 2 banks, row length=11, column length=9
0 1 000 01 16 Mb (1Mx16), 2 banks, row length=11, column length=8
0 1 001 00 64 Mb (8Mx8), 4 banks, row length 12, column length=9
0 1 001 01 64 Mb (4Mx16), 4 banks, row length=12, column length=8
0 1 010 00 128 Mb (16Mx8), 4 banks, row length=12, column length=10
0 1 010 01 128 Mb (8Mx16), 4 banks, row length=12, column length=9
0 1 011 00 256 Mb (32Mx8), 4 banks, row length=13, column length=10
0 1 011 01 256 Mb (16Mx16), 4 banks, row length=13, column length=9
0 1 100 00 512 Mb (64Mx8), 4 banks, row length=13, column length=11
0 1 100 01 512 Mb (32Mx16, 4 banks, row length=13, column length=10
32-bit extended bus high-performance address mapping (row, bank, column)
1 0 000 00 16 Mb (2Mx8), 2 banks, row length=11, column length=9
1 0 000 01 16 Mb (1Mx16), 2 banks, row length=11, column length=8
1 0 001 00 64 Mb (8Mx8), 4 banks, row length=12, column length=9
1 0 001 01 64 Mb (4Mx16), 4 banks, row length=12, column length=8
1 0 001 10 64 Mb (2Mx32), 4 banks, row length=11, column length=8
1 0 010 00 128 Mb (16Mx8), 4 banks, row length=12, column length=10
1 0 010 01 128 Mb (8Mx16), 4 banks, row length=12, column length=9
1 0 010 10 128 Mb (4Mx32), 4 banks, row length=12, column length=8
1 0 011 00 256 Mb (32Mx8), 4 banks, row length=13, column length=10