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7. ATAPI Packet Command Specification
7.4.
LOCATE 2Bh
Bit
7
Byte
0
1
2
3
(MSB)
4
5
6
7
8
9
10
11
The LOCATE command causes the Device to position to the specified block address in a specified partition. Upon
completion, the logical position shall be after the specified location. Prior to performing the locate operation, the
Device shall ensure that all buffered data, filemarks, and setmarks have been transferred to the medium.
BT: A Block address Type (BT) bit=1 is not supported and shall be set to ZERO otherwise a CHECK CONDITION
with an ILLEGAL REQUEST sense key will be returned.
CP: A Change Partition (CP) bit of one indicates that a change to the partition specified in the partition field is to
occur prior to positioning to the block specified in the Block Address field. A CP bit of zero indicates no partition
change is to be made and the partition field is to be ignored.
Immed: An immediate (Immed) bit of zero indicates the Device shall not return status until the operation has
completed. An Immed bit of one indicates that the Device shall return status as soon as all buffered commands
have completed execution and the CDB has been validated. If CHECK CONDITION status is returned when the
Immed bit is set to one, the operation shall not be performed.
Block Address: The Block Address field specifies the logical block address to which the Device shall position
the medium.
Partition: The Partition field specifies which partition to select if the CP bit is one.
7-8
6
5
4
Operation Code (2Bh)
Reserved
Block Address
3
2
BT (0)
Reserved
Reserved
Partition
Reserved
Reserved
Reserved
SONY AIT-2 Turbo drive SDX-560V series Ver.1.0
LOCATE
1
0
CP
Immed
(LSB)
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