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NAND FLASH CONTROLLER S3C2410A
6-6
SPECIAL FUNCTION REGISTERS
NAND FLASH CONFIGURATION (NFCONF) REGISTER
Register Address R/W Description Reset Value
NFCONF 0x4E000000 R/W NAND flash configuration –
NFCONF Bit Description Initial State
Enable/Disable [15] NAND flash controller enable/disable
0 = Disable NAND Flash Controller
1 = Enable NAND Flash Controller
After auto-boot, this bit is cleared to 0 automatically.
For the access to the NAND flash memory, this bit must
be set.
0
Reserved [14:13]
Reserved –
Initialize ECC [12] Initialize ECC decoder/encoder
0 : Not initialize ECC 1 : Initialize ECC
(S3C2410A supports only 512-Byte ECC checking, so it is
required to set ECC initialization per 512 Bytes.)
0
NAND Flash Memory
chip enable
[11] NAND flash memory nFCE control
0 : NAND flash nFCE = L (active)
1 : NAND flash nFCE = H (inactive)
(After auto-boot, nFCE will be inactive.)
–
TACLS [10:8] CLE & ALE duration setting value (0~7)
Duration = HCLK * (TACLS + 1)
0
Reserved [7] Reserved –
TWRPH0 [6:4] TWRPH0 duration setting value (0~7)
Duration = HCLK * (TWRPH0 + 1)
0
Reserved [3] Reserved –
TWRPH1 [2:0] TWRPH1 duration setting value (0~7)
Duration = HCLK * (TWRPH1 + 1)
0