User's Manual

Table Of Contents
NAND FLASH CONTROLLER S3C2450X RISC MICROPROCESSOR
7-6
10.1.1 1-BIT ECC Register Configuration
Following tables shows the configuration of 1-bit ECC value read from spare area of external NAND flash
memory. For comparing to ECC parity code generated by the H/W modules, each ECC data read from memory
must be written to NFMECCDn for main area and NFSECCD for spare area.
NOTE
4-bit ECC decoding scheme is different to 1-bit ECC.
1. NAND Flash Memory Interface
Register Bit [31:24] Bit [23:16] Bit [15:8] Bit [7:0]
NFMECCD0
Not used
2
nd
ECC for I/O[7:0]
Not used
1
st
ECC for I/O[7:0]
NFMECCD1
Not used
4
th
ECC for I/O[7:0]
Not used
3
rd
ECC for I/O[7:0]
Register Bit [31:24] Bit [23:16] Bit [15:8] Bit [7:0]
NFSECCD
Not used
2
nd
ECC for I/O[7:0]
Not used
1
st
ECC for I/O[7:0]