Cirrus Logic CS43L22 - Manual (Page 52)

52 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