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CDU-541 CD-ROM DRIVE SCSI INTERFACE MANUAL
Table 5-16: Sub-Channel Q Data MSF Format
==============================================================================
Bitl
Byte
I
7
6
5
4
3
2
1
o
==============================================================================
o
i
Reserved
1
Control
1
-----1-----------------------------------------------------------------------1
1
:
Track Number
1
-----1-----------------------------------------------------------------------1
2
:
Index Number
1
-----i-----------------------------------------------------------------------1
3
1
Relative Minute
1
-----1-----------------------------------------------------------------------1
4
1
Relative Second
1
-----1-----------------------------------------------------------------------1
5
1
Relative Frame
1
-----1-----------------------------------------------------------------------1
6
1
Absolute Minute
1
-----1-----------------------------------------------------------------------1
7
1
Absolute Second
I
-----1-----------------------------------------------------------------------1
8
1
Absolute Frame
1
==============================================================================
The control bits are definedjn Table
5-24.
The Track Number specifies the current track number.
The Index Number specifies the index number in the current track.
The relative minutes, seconds and frame fields specify the relative physical
location from the beginning of the current track.
The absolute minutes, seconds and frame fields specify the absolute physical
location from the beginning of the disc.
5-39
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