Filter
Top Products
Host Interface
4-52 C156-E227-01EN
When the PER (Post Error) bit is 0, the command reports the GOOD status when it
recovers the normal state by using the error recovery process. When the bit of PER
is 1, the command reports the CHECK CONDITION status when it recovers the
normal state by using the error recovery process. At this time, Sense key is set
with RECOVERED ERROR.
RECOVERED ERROR is reported:
•
When 7 to 8 error bytes per interleaving was corrected by the ECC correction
during read operation
•
When a defect sector is detected and replaced with an alternate sector during a
write operation
•
When an error occurs in one of four sets of media data during media
management information (DMA) write operation with the FORMAT UNIT
command (MEDIUM ERROR is set if an error occurs in two, three, or four
sets of four sets.)
When the DCR (Disable Correction) bit is 0, the command corrects errors if a
correctable error is detected in the READ (10) and READ (12) command. When
the bit of DCR is 1, the command does not correct errors even if a correctable
error is detected.
Read Retry Count must not be 3 or smaller. If a value of 3 or smaller is specified,
the command assumes 4 and reports Recovered Error.
Write Retry Count must not be a value other than 3. If a value other than 3 is
specified, the command assumes 3 and reports Recovered Error.
To assure media compatibility, the read-write error recovery page should be set to
the default value, except for diagnostics purposes.
The read-write error recovery page can be saved.
Table 4.55 Changeable values in the read-write recovery page
Bit
Byte
76543210
210010101
3FFh
4-7 00h
8FFh
9-11 00h