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AM1808: Question about NAND Flash Status Register [ECC_ERRNUM]

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Part Number:AM1808

Hi champs,

I have a question about NAND Flash Status Register [ECC_ERRNUM].

If these bits sets, this means that the number of bits that failed, right?

I saw TRM SPRUH82C    P.914

0 : 1 error found.
1 : 2 errors found.
2 : 3 errors found.
3 : 4 errors found.

If original data is 0xF0. Then, data became 0xFF at error.
Do ECC_ERRNUM bits set 0x3h?

I confuse that...

I feel the following is correct.

0 : No error found.
1 : 1error found.
2 : 2errors found.
3 : 3errors found.

Please let me know.

And, could you send me sample S/W about [NAND Flash read/write with 4bit error control] if we have.

Regards,
Shinji Ueda 


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