Cirrus Logic CS4392 - Manual (Page 21)

CS4392
DS459PP3 21
ATAPI4 ATAPI3 ATAPI2 ATAPI1 ATAPI0 AOUTA AOUTB
0 0 0 0 0 MUTE MUTE
0 0 0 0 1 MUTE bR
0 0 0 1 0 MUTE bL
0 0 0 1 1 MUTE b[(L+R)/2]
0 0 1 0 0 aR MUTE
0 0 1 0 1 aR bR
0 0 1 1 0 aR bL
0 0 1 1 1 aR b[(L+R)/2]
0 1 0 0 0 aL MUTE
0 1 0 0 1 aL bR
0 1 0 1 0 aL bL
0 1 0 1 1 aL b[(L+R)/2]
0 1 1 0 0 a[(L+R)/2] MUTE
0 1 1 0 1 a[(L+R)/2] bR
0 1 1 1 0 a[(L+R)/2] bL
0 1 1 1 1 a[(L+R)/2] b[(L+R)/2]
1 0 0 0 0 MUTE MUTE
1 0 0 0 1 MUTE bR
1 0 0 1 0 MUTE bL
1 0 0 1 1 MUTE [(bL+aR)/2]
1 0 1 0 0 aR MUTE
1 0 1 0 1 aR bR
1 0 1 1 0 aR bL
1 0 1 1 1 aR [(aL+bR)/2]
1 1 0 0 0 aL MUTE
1 1 0 0 1 aL bR
1 1 0 1 0 aL bL
1 1 0 1 1 aL [(aL+bR)/2]
1 1 1 0 0 [(aL+bR)/2] MUTE
1 1 1 0 1 [(aL+bR)/2] bR
1 1 1 1 0 [(bL+aR)/2] bL
1 1 1 1 1 [(aL+bR)/2] [(aL+bR)/2]
Table 13. ATAPI Decode
Σ Σ
A Channel
Volume
Control
AoutA
AoutB
Left Channel
Audio Data
Right Channel
Audio Data
B Channel
Volume
Control
MUTE
MUTE
Figure 11. ATAPI Block Diagram