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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
NAND FLASH CONTROLLER
8
-25
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.
MAIN DATA AREA ECC0 STATUS REGISTER
Register
Address
R/W
Description
Reset Value
NFMECC0 0x70200034
R
SLC or MLC NAND Flash ECC status register
0xXXXXXX
NFMECC1 0x70200038
R
MLC NAND Flash ECC status register
0xXXXXXX
When ECCType is SLC
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 MLC.
NFMECC0
Bit
Description
Initial State
4
th
Parity
[31:24]
4
th
Check Parity generated from main area (512-byte)
0x00
3
rd
Parity
[23:16]
3
rd
Check Parity generated from main area (512-byte)
0x00
2
nd
Parity
[15:8]
2
nd
Check Parity generated from main area (512-byte)
0x00
1
st
Parity
[7:0]
1
st
Check Parity generated from main area (512-byte)
0x00
NFMECC1
Bit
Description
Initial State
Reserved [31:24]
Reserved
0x00
7
th
Parity
[23:16]
7
th
Check Parity generated from main area (512-byte)
0x00
6
th
Parity
[15:8]
6
th
Check Parity generated from main area (512-byte)
0x00
5
th
Parity
[7:0]
5
th
Check Parity generated from main area (512-byte)
0x00
Note:
The NAND flash controller generate these ECC parity codes when write main area data while the
MainECCLock (NFCON[7]) bit is ‘0’ (unlock).