1 speaker volume control, 22 pcm channel swap (address 26h), 1 pcm channel swap – Cirrus Logic CS43L22 User Manual
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DS792F2
CS43L22
Confidential Draft
3/4/10
7.21
Speaker Volume Control: SPKA (Address 24h) & SPKB (Address 25h)
7.21.1
Speaker Volume Control
Sets the volume of the signal out the PWM modulator.
Note:
The maximum step size error is +/-0.15 dB.
7.22
PCM Channel Swap (Address 26h)
7.22.1
PCM Channel Swap
Configures a mix/swap of the PCM data to the headphone/line or speaker outputs.
7
6
5
4
3
2
1
0
SPKxVOL7
SPKxVOL6
SPKxVOL5
SPKxVOL4
SPKxVOL3
SPKxVOL2
SPKxVOL1
SPKxVOL0
SPKxVOL[7:0]
Speaker Volume
0000 0000
0 dB
1111 1111
-0.5 dB
1111 1110
-1.0 dB
···
···
0100 0000
-96.0 dB
···
···
0000 0001
Muted
Step Size:
0.5 dB
7
6
5
4
3
2
1
0
PCMASWP1
PCMASWP0
PCMBSWP1
PCMBSWP0
Reserved
Reserved
Reserved
Reserved
PCMxSWP[1:0]
PCM to HP/LINEOUTA
PCM to HP/LINEOUTB
00
Left
Right
01
(Left + Right)/2
(Left + Right)/2
10
11
Right
Left