Cirrus Logic CS4341 - Manual (Page 28)

CS4341
28 DS298F5
6.3.3 ATAPI CHANNEL MIXING AND MUTING (ATAPI) BIT 0-4
Default = 01001 - AOUTA = Left Channel, AOUTB = Right Channel (Stereo)
Function:
The CS4341 implements the channel mixing functions of the ATAPI CD-ROM specification. Refer to
Table 6 and Figure 25 for additional information.
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/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 [(aR+bL)/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/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 6. ATAPI Decode