Samsung S3C2500B User Manual page 277

S3C2500B
Table 5-20. Supported SDRAM Configuration of 16-bit External Bus
SDRAM SDRAM
Technology Arrangement
2M × 8
16M-bit
1M × 16
8M × 8
64M-bit
4M × 16
16M × 8
128M-bit
8M × 16
32M × 8
256M-bit
16M × 16
NOTE: Banks: Number of external SDRAM memory bank used.
The controller supports up to two banks
Leaf : Internal bank of SDRAM devices.
# Banks Address Size
Row
1 11
2
1 11
2
1 12
2
1 12
2
1 12
2
1 12
2
1 13
2
1 13
2
Leaf Select
Col ADDR[14]
9 –
8 –
9 HADDR[21]
8 HADDR[21]
10 HADDR[21]
9 HADDR[21]
10 HADDR[21]
9 HADDR[21]
MEMORY CONTROLLER
Total
Memory Size
ADDR[13] (Byte)
HADDR[20] 4 M
8 M
HADDR[20] 2 M
4 M
HADDR[20] 16 M
32 M
HADDR[20] 8 M
16 M
HADDR[20] 32 M
64 M
HADDR[20] 16 M
32 M
HADDR[20] 64 M
128 M
HADDR[20] 32 M
64 M
5-41