8.3.4
CS4350
ATAPI Channel Mixing and Muting (ATAPI[3:0]) Bits 3-0
Default = 1001 - AOUTA=aL, AOUTB=bR (Stereo)
Function:
The CS4350 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to
Table 5 and Figure 19 for additional information.
Left Channel
Audio Data
A Channel
Volume
Control
MUTE AoutA
Σ
Σ
Right Channel
Audio Data
B Channel
Volume
Control
Figure 19. ATAPI Block Diagram
ATAPI_A1 ATAPI_A0 ATAPI_B1 ATAPI_B0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
AOUTA
MUTE
MUTE
MUTE
MUTE
aR
aR
aR
aR
aL
aL
aL
aL
a[(L+R)/2]
a[(L+R)/2]
a[(L+R)/2]
a[(L+R)/2]
Table 5. ATAPI Decode
MUTE AoutB
AOUTB
MUTE
bR
bL
b[(L+R)/2]
MUTE
bR
bL
b[(L+R)/2]
MUTE
bR
bL
b[(L+R)/2]
MUTE
bR
bL
b[(L+R)/2]
30
DS691A3