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Host Interface
•Seven or eight error bytes occurring per interleaving are corrected by the ECC feature during a read operation.
•A defective sector is detected and replaced with an alternate sector during a write operation.
•An error occurs in one of four sets of media data during media management information (DMA) write operation caused by the FORMAT UNIT command (MEDIUM ERROR is set if an error occurs in two, three, or four sets of four sets).
If the Disable Correction (DCR) bit is 0, the command corrects any correctable errors detected in a read command. If the DCR bit is 1, the command does not correct any correctable errors that are detected.
A value of 3 or fewer cannot be specified for Read Retry Count. If 3 or fewer is specified, the command processing assumes that 4 is specified and reports Recovered Error.
The value of Write Retry Count must be 3. If a value other than 3 is specified, the command processing assumes that 3 is specified and reports Recovered Error.
To ensure media compatibility, the
The values in the
Table 4.16 Variable values in the read-write error recovery page
| Bit | 7 |
| 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
| Byte |
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| 2 | 1 |
| 0 | 0 | 1 |
| 0 | 1 | 0 | 1 |
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| 3 |
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| FFh |
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| 00h |
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| 8 |
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| FFh |
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| Table 4.17 | Default values in the |
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| Bit | 7 |
| 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
| Byte |
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| 2 | 1 |
| 0 | 0 | 0 |
| 0 | 0 | 0 | 0 |
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| 3 |
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| 3Fh |
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| 00h |
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| 8 |
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| 03h |
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| 00h |
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