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4-28 C156-E224-01EN
Table 4.44 Sense Key
Sense
Key
Mnemonic Meaning
0h NO SENSE There is no sense key to be reported. NO SENSE is set when
a command ends normally.
1h
RECOVERED
ERROR
Recovery processing ended successfully or the commands
ended normally using the internal default values even though
invalid data was detected in command parameters. (This sense
data is not reported if the PER bit is 0.)
2h NOT READY No access commands can be used.
3h MEDIUM
ERROR
An unrecoverable error due to media failure was detected.
4h HARDWARE
ERROR
An unrecoverable error due to hardware failure was detected.
5h
ILLEGAL
REQUEST
A command packet or command parameter contains invalid
data; media data remains unchanged.
6h UNIT
ATTENTION
Reset state, power-on, or media replacement was caused.
7h
DATA
PROTECT
Media is write-protected with the write-protect switch or with
software.
8h BLANK CHECK A blank sector was detected. This sense key is reserved.
9h-
Ah
Reserved Reserved
Bh ABORTED
COMMAND
Processing of the command was interrupted.
Ch-
Fh
Reserved Reserved
Information indicates the LBA of the block in which an error occurred. If errors
occur in multiple blocks, Information indicates the LBA of the block in which the
first error occurred.
Command-Specific Information indicates the logical track address of the block
indicated by Information. The format of the logical track address is shown in
Table 4.45.
Table 4.45 Logical track address format
Byte Description
8-9 Logical track address
10 00h
11 Logical sector address
Additional Sense Code (ASC) and Additional Sense Code Qualifier (ASCQ)
indicate detailed error information. Table 4.46 lists the ASC and ASCQ
definitions.