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| CS42L51_07 Datasheet, PDF (62/88 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp | |||
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CS42L51
6.13 PCMX Mixer Volume Control:
PCMA (Address 10h) & PCMB (Address 11h)
7
MUTE_
PCMMIXx
6
PCMMIXx_
VOL6
5
PCMMIXx_
VOL5
4
PCMMIXx_
VOL4
3
PCMMIXx_
VOL3
2
PCMMIXx_
VOL2
1
PCMMIXx_
VOL1
0
PCMMIXx_
VOL0
Note: The DATA_SEL[1:0] bits in reg09h must be set to â01âb to enable function control in this register.
PCMX Mixer Channel Mute (MUTE_PCMMIXX)
Default = 1
0 - Disabled
1 - Enabled
Function:
The PCM channel X input to the output mixer will mute when enabled. The muting function is affected by
the DACX Soft and Zero Cross bits (DACX_SZC[1:0]).
PCMX Mixer Volume Control (PCMMIXX_VOL[6:0])
Default: 000 0000
Binary Code
001 1000
···
000 0000
111 1111
111 1110
···
001 1001
Volume Setting
+12.0 dB
···
0 dB
-0.5 dB
-1.0 dB
···
-51.5 dB
Function:
The level of the PCMX input to the output mixer can be adjusted in 0.5 dB increments as dictated by the
DACX Soft and Zero Cross bits (DACX_SZC[1:0]) from +12 to -51.5 dB. Levels are decoded as described
in the table above.
6.14 Beep Frequency & Timing Configuration (Address 12h)
7
FREQ3
6
FREQ2
5
FREQ1
4
FREQ0
3
ONTIME3
2
ONTIME2
1
ONTIME1
0
ONTIME0
Note: The DATA_SEL[1:0] bits in reg09h must be set to â01âb to enable function control in this register.
Beep Frequency (FREQ[3:0])
Default: 0000
FREQ[3:0]
0000
0001
0010
0011
0100
Frequency
Fs = 12, 24, 48 or 96
kHz
260.87 Hz
521.74 Hz
585.37 Hz
666.67 Hz
705.88 Hz
Pitch
C4
C5
D5
E5
F5
62
DS679F1
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