CDU-541
CD-ROM
DRIVE
SCSI
INTERFACE
MANUAL
The
audio
status
field
indicates
the
status
of
an
audio
play
operation.
The
audio
status
values
are
defined
as
follows.
Audio
status
values
03h and 04h
return
information
on
previous
audio
operations;
they
are
returned
only
once
after
the
condition
has
ocurred.
If
another
audio
play
operation
is
not
requested,
the
audio
status
returned
for
subsequent
READ
SUB-CHANNEL
commands
is
05h.
Table
5-20:
Audio
Status
=============================================================================-
Status
Description
----------1------------------------------------------------------------------
OOh
1 Audio
play
operation
in
progress.
Olh
Audio
pause
operation
in
progress.
02h Audio muting on.
03h
Audio
play
operation
successfully
completed.
04h
Error
occurred
during
audio
play
operation.
1
------------------------------------------------------------------1
05h
Audio
play
operation
not
requested.
1
==============================================================================
The
other
data
fields
in
the
format
of
Time
Data
are
the
same
as
those
of
Group
6.
o The Format
of
Media
Catalog
Number
(MC=O,
TC=l)
Table
5-21:
The Format
of
Media
Catalog
Number
(MC=O,
TC=l)
==============================================================================
Bitl
Byte I
7
6
5
4
3
2
1 o
==============================================================================
o I
Valid
I Reserved :
_____
1
______
------------------------------------------
_______________________
1
1
(MSB)
15
Media
Catalog
Number
(UPCjBar Code)
(LSB)
=====-=======================================================================-
If
the
valid
field
is
set
to
one,
the
data
in
byte
1
through
15
is
available.
The
data
is
raw
data
read
from
the
disc.
"OOh"
is
specified
in
the
fields
without
data.
5-43
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