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CD-ROM SCSI-2 COMMAND REFERENCE MANUAL VERSION 3.1 (OB-U0077C)
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TABLE 2-27 READ SUB-CHANNEL (42H)
Bit
Byte 7 6 5 4 3 2 1 0
0 Operation Code (42h)
1 Logical Unit No. Reserved MSF Reserved
2 Reserved SubQ Reserved
3 Sub Channel Data Format
4 Reserved
5 Reserved
6 Track Number
7 Allocation Length (MSB)
8 Allocation Length (LSB)
9 Reserved
TABLE 2-27A SUB CHANNEL DATA HEADER
Bit
Byte 7 6 5 4 3 2 1 0
0 Reserved
1 Audio Status
2 Sub Channel Data Length (MSB)
3 Sub Channel Data Length (LSB)