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Preliminary
NAND FLASH CONTROLLER
S3C2451X RISC MICROPROCESSOR
7-24
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
7.13.12 MAIN DATA AREA ECC0 STATUS REGISTER
Register
Address
R/W
Description
Reset Value
NFMECC0 0x4E000034
R
NAND Flash ECC status register
0xXXXXXX
NFMECC1 0x4E000038 R
NAND
Flash
ECC status register
0xXXXXXX
When ECCType is 1-bit ECC
NFMECC0
Bit
Description
Initial State
MECC0_3
[31:24]
ECC3 for data[7:0]
0xXX
MECC0_2
[23:16]
ECC2 for data[7:0]
0xXX
MECC0_1
[15:8]
ECC1 for data[7:0]
0xXX
MECC0_0
[7:0]
ECC0 for data[7:0]
0xXX
NFMECC1
Bit
Description
Initial State
Reserved [31:0]
Reserved
0x00000000
NOTE:
The NAND flash controller generate NFMECC when read or write main area data while the MainECCLock
(NFCONT[7]) bit is ‘0’(Unlock).
When ECCType is 4-bit ECC.
NFMECC0
Bit
Description
Initial State
4
th
Parity
[31:24]
4
th
Check Parity generated from main area
0x00
3
rd
Parity
[23:16]
3
rd
Check Parity generated from main area
0x00
2
nd
Parity
[15:8]
2
nd
Check Parity generated from main area
0x00
1
st
Parity
[7:0]
1
st
Check Parity generated from main area
0x00
NFMECC1
Bit
Description
Initial State
Reserved [31:24]
Reserved
0x00
7
th
Parity
[23:16]
7
th
Check Parity generated from main area
0x00
6
th
Parity
[15:8]
6
th
Check Parity generated from main area
0x00
5
th
Parity
[7:0]
5
th
Check Parity generated from main area
0x00
NOTE:
The NAND flash controller generate these ECC parity codes when write main area data while the MainECCLock
(NFCONT[7]) bit is ‘0’ (unlock).