Address Map - Samsung S3C2501X User Manual

SYSTEM CONFIGURATION

4.3 ADDRESS MAP

Each memory block is mapped within the fixed location of memory space. As shown in the figure 4-1, the
maximum size of ROM/SRAM/Flash/External IO bank is restricted to 16M-bytes and the SDRAM bank can be
mapped within 1G-byte memory space. It must be noticed that the base address of each bank is fixed and the
bank size is variable. Although the SDRAM bank size are up to 1G-bytes in the figure 4-1, the possible maximum
size is 128M-bytes because the SDRAM controller can supports 256M-bit SDRAM component.
4-2
0xFFFFFFFF
0xF0000000
0x88000000
0x80000000
0x48000000
0x40000000
0x08000000
0x07000000
0x06000000
0x05000000
0x04000000
0x03000000
0x02000000
0x01000000
0x00000000
Figure 4-1. S3C2501X Address map after resest
Internal Register
Reserved
SDRAM #1
Reserved
SDRAM #0
Reserved
EXT I/O Bank #7
EXT I/O Bank #6
EXT I/O Bank #5
EXT I/O Bank #4
EXT I/O Bank #3
EXT I/O Bank #2
EXT I/O Bank #1
EXT I/O Bank #0
S3C2501X