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S3C2440A RISC MICROPROCESSOR NAND FLASH CONTROLLER
6-19
ECC0/1 STATUS REGISTER
Register Address R/W Description Reset Value
NFESTAT0 0x4E000024 R/W NAND Flash ECC Status register for I/O [7:0] 0x00000000
NFESTAT1 0x4E000028 R/W NAND Flash ECC Status register for I/O [15:8] 0x00000000
NFESTAT0 Bit Description Initial State
SErrorDataNo [24:21] In spare area, Indicates which number data is error 00
SErrorBitNo [20:18] In spare area, Indicates which bit is error 000
MErrorDataNo [17:7] In main data area, Indicates which number data is error 0x00
MErrorBitNo [6:4] In main data area, Indicates which bit is error 000
SpareError [3:2] Indicates whether spare area bit fail error occurred
00: No Error 01: 1-bit error(correctable)
10: Multiple error 11: ECC area error
00
MainError [1:0] Indicates whether main data area bit fail error occurred
00: No Error 01: 1-bit error(correctable)
10: Multiple error 11: ECC area error
00
Note
The above value
s are only valid when both ECC register and ECC status register have valid value.
NFESTAT1 Bit Description Initial State
SErrorDataNo [24:21] In spare area, Indicates which number data is error 00
SErrorBitNo [20:18] In spare area, Indicates which bit is error 000
MErrorDataNo [17:7] In main data area, Indicates which number data is error 0x00
MErrorBitNo [6:4] In main data area, Indicates which bit is error 000
SpareError [3:2] Indicates whether spare area bit fail error occurred
00: No Error 01: 1-bit error(correctable)
10: Multiple error 11: ECC area error
00
MainError [1:0] Indicates whether main data area bit fail error occurred
00: No Error 01: 1-bit error(correctable)
10: Multiple error 11: ECC area error
00
Note
The above value
s are only valid when both ECC register and ECC status register have valid value.