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PRELIMINARY
NAND FLASH CONTROLLER
S3C6400X RISC MICROPROCESSOR
8-24
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.
When ECCType is MLC.
NFECCERR0
Bit
Description
Initial State
ECC Busy
[31]
Indicates the 4-bit ECC decoding engine is searching
whether a error exists or not
0:
Idle
1:
Busy
0
ECC Ready
[30]
ECC Ready bit
1
Free Page
[29]
Inidicates the page data red from NAND flash has all ‘FF’
value.
0
MLC MECC Error
[28:26]
4-bit ECC decoding result
000: No error
001: 1-bit error
010: 2-bit error
011: 3-bit error
100: 4-bit error
101: Uncorrectable
11x: reserved
000
2
nd
Bit Error Location
[25:16]
Error byte location of 2
nd
bit error
0x00
Reserved [15:10]
Reserved
1
st
Bit Error Location
[9:0]
Error byte location of 1
st
bit error
0x00
Note:
These values are updated when ECCDecDone (NFSTAT[6]) is set (‘1’).
NFECCERR1
Bit
Description
Initial State
Reserved [31:26]
Reserved
0x00
4
th
Bit Error Location
[25:16]
Error byte location of 4
th
bit error
0x00
Reserved [15:10]
Reserved
3
rd
Bit Error Location
[9:0]
Error byte location of 3
rd
bit error
0x00
Note:
These values are updated when ECCDecDone (NFSTAT[6]) is set (‘1’).