Hitachi 7K320 Specifications - Page 24

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5.8 ECC 7K320 SATA OEM Specification The 10 bit 40 symbol non interleaved ECC processor provides user data verification and correction capability. The first 6 symbol of ECC are 4 check symbols for user data and the 2 symbol system ECC. The other 34 symbols are Read Solomon ECC. Hardware logic corrects up to 16 symbols(20 bytes) errors on-the-fly. 2 symbol System ECC is generated when HDC receives user data from HOST, and can correct up to 1 symbol(10bit) errors on-the-fly when one transfers to HOST. Page 24 of 176

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7K320 SATA OEM Specification
Page 24 of 176
5.8
ECC
The 10 bit 40 symbol non interleaved ECC processor provides user data verification and correction
capability. The first 6 symbol of ECC are 4 check symbols for user data and the 2 symbol system ECC.
The other 34 symbols are Read Solomon ECC. Hardware logic corrects up to 16 symbols(20 bytes)
errors on-the-fly.
2 symbol System ECC is generated when HDC receives user data from HOST, and can correct up to 1
symbol(10bit) errors on-the-fly when one transfers to HOST.