Seek (Group 1) Command (2Bh) - HP 2600fx - Optical Disk Drive Command Reference Manual

Seek (Group 1) Command (2BH)

This command seeks the optical head to the physical track where the
specified logical block exists.
Table 2-77 Seek (Group 1) Command CDB
PBA
NOTE When this command is used with 512 byte/sector 14X media or 1024 byte/
sector 14X media, setting the PBA bit will cause the drive to return a
CHECK CONDITION status. The sense key/additional sense code will be
set to ILLEGAL REQUEST/Invalid Field in CDB.
Chapter 2
Byte 7 6
0
1 Logical Unit Number
(0)
2
3
4
5
6
7
8
9 PBA
A Physical Block Address bit of 1 indicates that physical
block addressing is used.
A PBA bit of 0 indicates that logical block addressing is
used.
Seek (Group 1) Command (2BH)
5 4 3
Operation Code (2BH)
Reserved (0)
Logical Block Address (MSByte)
Logical Block Address
Logical Block Address
Logical Block Address (LSByte)
Reserved (0)
Reserved (0)
Reserved (0)
Reserved (0)
SCSI-2 Drive Command Set
2 1 0
Flag Link
2-87