Pioneer SCSI-2 - Manual (Page 18)

CD-ROM SCSI-2 COMMAND REFERENCE MANUAL VERSION 3.1 (OB-U0077C)
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T ABLE 1-5 S AMPLE C OMMAND
Bit
Byte 7 6 5 4 3 2 1 0
0 Operation Code (XXh)
1 Logical Number Reserved
2 Logical Block Address (MSB)
3 Logical Block Address
4 Logical Block Address
5 Logical Block Address (LSB)
6 Reserved
7 Allocation Length (MSB)
8 Allocation Length (LSB)
9 Reserved
Operation Code : XXh
Logical Unit Number specifies which Logical Unit the command applies to.
Logical Block Address specifies which Logical Block Address (LBA) the operation is to start.
Allocation Length is (depending on the command) the number of Logical Blocks or the number
of bytes that the initiator is expecting to receive from the drive.