
CS4360
32
DS517F2
6.3.1
ATAPI CHANNEL MIXING AND MUTING (ATAPI) BIT 0-3
Default = 1001 - AOUTAx = L, AOUTBx = R (Stereo)
Function:
The CS4360 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to
Table
9 and Figure
22 for additional information.
Note:
All mixing functions occur prior to the digital volume control. Mixing only occurs in channel pairs.
ATAPI3
ATAPI2
ATAPI1
ATAPI0
AOUTAx
AOUTBx
00
MUTE
00
01
MUTE
R
00
10
MUTE
L
00
11
MUTE
[(L+R)/2]
01
00
R
MUTE
01
R
01
10
R
L
01
11
R
[(L+R)/2]
10
00
L
MUTE
10
01
L
R
10
L
10
11
L
[(L+R)/2]
11
00
[(L+R)/2]
MUTE
11
01
[(L+R)/2]
R
11
10
[(L+R)/2]
L
11
[(L+R)/2]
Table 9. ATAPI Decode
Σ
A Channel
Volume
Control
AoutA
AoutB
Left Channel
Audio Data
Right Channel
Audio Data
B Channel
Volume
Control
& Mute
Figure 22. ATAPI Block Diagram