CS42L56 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS42L56 Datasheet PDF : 92 Pages
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6.11 Playback Control (Address 0Bh)
7
PDN_DSP
6
DEEMPH
5
Reserved
4
PLYBCKB=A
3
INV_PCMB
2
INV_PCMA
CS42L56
1
Reserved
0
Reserved
6.11.1 Power Down DSP
Configures the power state of the DSP Engine.
PDNDSP
0
1
DSP Status
Powered Up
Powered Down
DSP Engine Controls/Blocks
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
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.
DEEMPH
0
1
De-Emphasis Status
Disabled
Enabled
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.
PLYBCKB=A
0
1
Single Volume Control for all Playback
Channels
Affected Volume Controls
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)
Enabled; Ganged channel control. Channel MSTxVOL[7:0] (“Master Volume Control” on page 70)
A volume control controls channel B volume. 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)
6.11.4 Invert PCM Signal Polarity
Configures the polarity of the digital input signal.
INV_PCMx
0
1
PCM Signal Polarity
Not Inverted
Inverted
DS851F2
65
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