Cirrus Logic CS42L56 - Manual (Page 67)

DS851F2 67
CS42L56
6.14 PCMx Mixer Volume: PCMA (Address 0Fh) & PCMB (Address 10h)
6.14.1 PCM Mixer Channel x Volume
Sets the volume/gain of the PCM mix from the serial data input (SDIN) to the DSP Engine.
7 6 5 4 3 2 1 0
PMIXxVOL7 PMIXxVOL6 PMIXxVOL5 PMIXxVOL4 PMIXxVOL3 PMIXxVOL2 PMIXxVOL1 PMIXxVOL0
PMIXxVOL[7:0] Volume
0111 1111 +12 dB
... ...
0001 1000 +12 dB
... ...
0000 0001 +0.5 dB
0000 0000 0 dB
1111 1111 -0.5 dB
... ...
1000 1000 -60.0 dB
1000 0111 Mute
... ...
1000 0000 Mute
Step Size: 0.5 dB