s3c4510b Samsung Semiconductor, Inc., s3c4510b Datasheet - Page 190

• Manufacturer Part Number: s3c4510b
• Description: 16/32-bit Risc Microcontroller
• Manufacturer: Samsung Semiconductor, Inc.

SYSTEM MANAGER
DRAM CONTROL REGISTERS
The System Manager has four DRAM control registers, DRAMCON0–DRAMCON3. These registers correspond
to the up to four DRAM banks that are supported by S3C4510B. A fifth register, REFEXTCON, is used to set the
base pointer for external I/O bank 0.
S3C4510B supports EDO, normal, Synchronous DRAM(SDRAM). SDRAM mode can be selected by setting
SYSCFG[31]. If this bit is set to '1', all DRAM banks are selected SDRAM. Otherwise, EDO/FP DRAM banks are
selected.
4-48
DRAMCON0
DRAMCON1
DRAMCON2
DRAMCON3
REFEXTCON
Registers
Table 4-22. DRAM and External I/O Control Register Description
0x302C
0x303C
0x3030
0x3034
0x3038
Offset
R/W
R/W
R/W
R/W
R/W
R/W
DRAM bank 0 control register
DRAM bank 1 control register
DRAM bank 2 control register
DRAM bank 3 control register
Refresh and external I/O control register
Description
Reset Value
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
S3C4510B