User Manual
DS851F2 65
CS42L56
6.11 Playback Control (Address 0Bh)
6.11.1 Power Down DSP
Configures the power state of the DSP Engine.
6.11.2 HP/Line De-Emphasis
Configures a 15s/50s (when Fs = 44.1 kHz) digital de-emphasis filter response on the headphone and
line outputs
.
6.11.3 Playback Channels B=A
Configures independent or ganged volume and mute control of all playback channels. When enabled, the
channel B settings are ignored and the channel A settings control channel A and channel B.
6.11.4 Invert PCM Signal Polarity
Configures the polarity of the digital input signal.
76543210
PDN_DSP DEEMPH Reserved PLYBCKB=A INV_PCMB INV_PCMA Reserved Reserved
PDNDSP DSP Status DSP Engine Controls/Blocks
0 Powered Up AMIXxMUTE (“ADC Mixer Channel x Mute” on page 67)
AMIXxVOL[6:0] (“ADC Mixer Channel x Volume” on page 67)
PMIXxMUTE (“PCM Mixer Channel x Mute” on page 67)
PMIXxVOL[6:0] (“PCM Mixer Channel x Volume” on page 68)
Beep Generator, Tone Control, De-Emphasis
1 Powered Down
DEEMPH De-Emphasis Status
0 Disabled
1 Enabled
PLYBCKB=A
Single Volume Control for all Playback
Channels
Affected Volume Controls
0 Disabled; Independent channel control. AMIXxMUTE (“ADC Mixer Channel x Mute” on page 67)
AMIXxVOL[6:0] (“ADC Mixer Channel x Volume” on page 67)
PMIXxMUTE (“PCM Mixer Channel x Mute” on page 67)
PMIXxVOL[6:0] (“PCM Mixer Channel x Volume” on page 68)
MSTxVOL[7:0] (“Master Volume Control” on page 70)
HPxMUTE (“Headphone Channel x Mute” on page 83)
HPxVOL[7:0] (“Headphone Volume Control” on page 84
LINExMUTE[7:0] (“Line Channel x Mute” on page 84)
LINExVOL[7:0] (“Line Volume Control” on page 84)
1
Enabled; Ganged channel control. Channel
A volume control controls channel B volume.
INV_PCMx PCM Signal Polarity
0 Not Inverted
1 Inverted