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Command Specifications
Table 4.96 SET DEVICE IDENTIFIER parameter list
Bit
7
Byte
0
(MSB)
~
~
n
The "Identifier" field shall be a vendor specific value, to be returned in subsequent
REPORT DEVICE IDENTIFIER commands.
4.2 Data Access Commands
4.2.1 READ (08)
Bit
7
Byte
0
1
0
2
3
4
5
0
This command reads the number of blocks of data in continuous logical data
blocks specified in the "Transfer block count" field with the logical data block on
the disk media specified in the "Logical block address" field in the CDB as the
top.
The transfer block count can be specified up to a maximum of 256 logical data
blocks. When zero is specified in the "Transfer block count" field in byte 4 of the
CDB, it specifies transfer of 256 logical data blocks and when a value other than
zero is specified, it specifies the number of logical data blocks that should be
transferred.
When transfer of multiple data blocks is instructed by this command, when the
data blocks which are to be processed come to a track boundary, cylinder
boundary or zone boundary, a head switch or cylinder switch is executed
automatically and reading of the specified number of blocks is performed.
4-136
6
5
4
Identifier
6
5
4
X'08'
0
0
Logical Block Address
Logical Block Address (LSB)
Transfer Block Count
0
0
0
3
2
1
3
2
Logical Block Address (MSB)
0
0
0
(LSB)
1
0
0
0
C141-C009
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