Laptop User Manual

NAND FLASH CONTROLLER S3C2440A RISC MICROPROCESSOR
6-16
MAIN DATA AREA REGISTER
Register Address R/W Description Reset Value
NFMECCD0 0x4E000014 R/W NAND Flash ECC 1
st
and 2
nd
register for main data read
Note: Refer to ECC MODULE FEATURES in Page 6-8.
0x00000000
NFMECCD1 0x4E000018 R/W NAND Flash ECC 3
rd
4
th
register for main data read
Note: Refer to ECC MODULE FEATURES in Page 6-8.
0x00000000
NFMECCD0 Bit Description Initial State
ECCData1_1 [31:24] 2
nd
ECC for I/O[15:8] 0x00
ECCData1_0 [23:16] 2
nd
ECC for I/O[ 7:0]
Note : In Software mode, Read this register when you
need to read 2
nd
ECC value from NAND flash memory
0x00
ECCData0_1 [15:8] 1
st
ECC for I/O[15:8] 0x00
ECCData0_0 [7:0] 1
st
ECC for I/O[ 7:0]
Note: In Software mode, Read this register when you
need to read 1
st
ECC value from NAND flash memory.
This register has same read function of NFDATA.
0x00
(Note) Only word access is valid.
NFMECCD1 Bit Description Initial State
ECCData3_1 [31:24] 4
th
ECC for I/O[15:8] 0x00
ECCData3_0 [23:16] 4
th
ECC for I/O[ 7:0]
Note: In Software mode, Read this register when you
need to read 4
th
ECC value from NAND flash memory.
0x00
ECCData2_1 [15:8] 3
rd
ECC for I/O[15:8] 0x00
ECCData2_0 [7:0] 3
rd
ECC for I/O[ 7:0]
Note: In Software mode, Read this register when you
need to read 3
rd
ECC value from NAND flash memory.
This register has same read function of NFDATA.
0x00
Note
Only word access is valid.