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Functional Description
• ECC correction
The default ECC correction applied is BCH 8b/sector using the GPMC and ELM hardware.
For device ID codes D3h, C3h, D5h, C5h, D7h, C7h, DEh, CEh when manufacturer code (first ID byte) is
98h the Cell type information is checked in the 4th byte of ID data. If it is equal to 10b then the ECC
correction applied is BCH 16b/sector.
In addition ECC computation done by the ROM can be turned off completely by using SYSBOOT[9]. This
is particularly useful when interfacing with NAND devices that have built in ECC engines.
Table 26-18. ECC Configuration for NAND Boot
SYSBOOT[9] ECC Computation
0 ECC done by ROM
1 ECC handled by NAND
4123
SPRUH73H–October 2011–Revised April 2013 Initialization
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