CDU-541
CD-ROM
DRIVE
SCSI
INTERFACE
MANUAL
Table
5-7: Audio
Control
Data
FOl"llat
==============================================================================
Bit:
7
6
5
4
3
2
1
o
Byte
:
=============================================================================-
o I
Reserved
-----1-----------------------------------------------------------------------
1 : Reserved
-----1-----------------------------------------------------------------------
2 : Reserved
-----:-----------------------------------------------------------------------
3
1
Reserved
:
-----1-----------------------------------------------------------------------1
4 1
Reserved
_____
1
______
------------------------------------------
______________________
_
5
Reserved
6
Reserved
7
Reserved
8
Reserved
-----------------------------------------------------------------------,
9 ,
Reserved
-----1-----------------------------------------------------------------------
10
1 Reserved I Channel 0 Output
Selection
-----1-----------------------------------------------------------------------
11 1 Channel 0
Volume
_____
1
______
------------------------------------------
______________________
_
12 Reserved I Channel 1 Output
Selection
-----------------------------------------------------------------------
13
Channel 1
Volume
14
Reserved
Channel 2 Output
Selection
15
Channel 2
Volume
-----------------------------------------------------------------------1
16 Reserved 1 Channel 3 Output
Selection
:
------------------------------------------------------
---------------~-1
17
Channel 3
Volume
==============================================================================
The
channel
output
selection
specifies
where
the
audio
for
that
channel
will
be
output.
Channel
output
selection
and volume
control
of
channel
0 and
1
is
valid
in
this
command.
The
valid
values
of
volume
control
are
OOh
through
FF
in
the
channel
volume
field,
and a
value
of
zero
indicates
the
output
is
muted and a
value
of
FFh
indicates
maximum
volume
level.
Channel
output
selection
is
defined
as
follows.
5-24
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