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6.Command Specification
6.13. READ BLOCK LIMITS 05h
Bit
7
Byte
0
1
Logical Unit Number
2
3
4
5
Unused (00b)
The READ BLOCK LIMITS command tells the drive to return its limits for Block Length. The READ BLOCK LIMITS
data shown below will be sent during the DATA IN phase of the command. The command does not reflect the
currently selected block size, only the available limits. MODE SENSE returns the current block size. 2 bytes is the
minimum and 16 Mbytes - 1 byte is the maximum block size which the unit can support.
Note: The SDX-450V supports one byte variable Read commands. However one byte Write operations are not
supported and will be rejected with a CHECK CONDITION for ILLEGAL REQUEST.
Bit
7
Byte
0
1
(MSB)
2
3
4
(MSB)
5
6-70
6
5
4
Operation Code (05h)
Table 6-57: READ BLOCK LIMITS Data
6
5
4
Maximum Block Length Limit (FF FF FFh)
Minimum Block Length Limit (00 02h)
3
2
Reserved
Reserved
Reserved
Reserved
Reserved
3
2
Reserved
SONY AIT-1 Turbo drive SDX-450V series Ver.1.0
READ BLOCK LIMITS
1
0
Flag
Link
1
0
(LSB)
(LSB)
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