Cirrus Logic CS42L52 - Manual (Page 52)

52 DS680F2
CS42L52
3/1/13
6.12.3 Invert PCM Signal Polarity
Configures the polarity of the digital input signal.
6.12.4 Master Playback Mute
Configures a digital mute on the master volume control for channel x.
Note: The muting function is affected by the DIGSFT ( “Digital Soft Ramp” on page 53 ) and DIGZC
( “Digital Zero Cross” on page 53 ) bits.
6.13 Miscellaneous Controls (Address 0Eh)
6.13.1 Passthrough Analog
Configures an analog passthrough from the PGA inputs to the headphone/line outputs.
Notes:
1. The Passthrough volume control is realized using a combination of the PGA volume control settings
(
“PGAx Volume” on page 56 ) and the headphone amplifier volume control settings (hidden). When
passthrough is enabled and the PGA to ADC path is selected, the signal seen by the ADC will change
depending on the passthrough volume setting.
6.13.2 Passthrough Mute
Configures an analog mute on the channel x analog in to analog out passthrough.
6.13.3 Freeze Registers
Configures a hold on all register settings.
Notes:
1. Use this bit only to synchronize run-time controls, such as volume and mute, during normal operation.
INV_PCMx PCM Signal Polarity
0 Not Inverted
1 Inverted
MSTxMUTE Master Mute
0 Not Inverted
1 Inverted
7 6 5 4 3 2 1 0
PASSTHRUB PASSTHRUA PASSBMUTE PASSAMUTE FREEZE DEEMPH DIGSFT DIGZC
PASSTHRUx Analog In Routed to HP/Line Output
0 Disabled
1 Enabled
PASSxMUTE Passthrough Mute
0 Disabled
1 Enabled
FREEZE Control Port Status
0 Register changes take effect immediately
1
Modifications may be made to all control port registers without the changes taking effect until after the
FREEZE is disabled.