CS4226 Datasheet, PDF (27/60 Pages) Cirrus Logic – Surround Sound Codec

CS4226
Auxilliary Port Control Byte (10h)
B7
CSP
B6
HPC
B5
UMV
B4
MOH
B3
DEM24
B2
DEM2
B1
DEM1
B0
DEM0
DEM 2-0
Selects de-emphasis response/source
0 - De-emphasis off
1 - De-emphasis on 32 kHz
2 - De-emphasis on 44.1 kHz
3 - De-emphasis on 48 kHz
4 - De-emphasis pin 32 kHz
5 - De-emphasis pin 44.1 kHz
6 - De-emphasis pin 48 kHz
7 - S/PDIF receiver channel status bits
DEM24
Process AUX data LSBs
0 - All received data bits (24 max) are processed
1 - Top 20 bits processed with De-emphasis filter. 4 AUX LSBs are passed unchanged.
MOH
Mute On Hold
0 - Extended Hold (16 frames) mutes DAC outputs
1 - DACs not muted
UMV
Unmute on Valid Data
0 - DACs unmute when ERROR is removed
1 - DACs must be unmuted in DAC control byte after ERROR is removed.
HPC
HOLD/RUBIT Pin Control
0 - HOLD/RUBIT is an input (HOLD)
1 - HOLD/RUBIT is an output(RUBIT)
CSP
Channel Status output to pins.
0 - Analog inputs to pins. AIN2R, AIN2L, AIN3R, AIN3L
1 - Channel status to pins. (This forces AIS1/0=0)
This register defaults to 00h.
DS188F1
27