Product Preview
WM8777
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
(04h)
6:0
SURLA
[6:0]
1101011
(0dB)
0
Analogue Attenuation control for SURL in 1dB steps. See Table 60.
Analogue
Attenuation
SURL
7
8
SURLZCEN
SURL zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store SURL in intermediate latch (no change to output)
1 = Store SURL and update attenuation on all channels.
Analogue Attenuation control for SUR Right in 1dB steps.
(05h)
6:0
7
SURRA
[6:0]
1101011
(0dB)
Analogue
Attenuation
SURR
SURRZCEN
0
SURR zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store SURR in intermediate latch (no change to output)
1 = Store SURR and update attenuation on all channels.
Analogue Attenuation control for AUXL in 1dB steps. See Table 60.
(06h)
6:0
7
AUXLA[6:0]
AUXLZCEN
1101011
(0dB)
0
Analogue
Attenuation AUXL
AUXL zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store AUXL in intermediate latch (no change to output)
1 = Store AUXL and update attenuation on all channels.
Analogue Attenuation control for AUXR in 1dB steps. See Table 60.
(07h)
6:0
7
AUXRA[6:0]
AUXRZCEN
1101011
(0dB)
0
Analogue
Attenuation AUXR
AUXR zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store AUXR in intermediate latch (no change to output)
1 = Store AUXR and update attenuation on all channels.
(08h)
6:0
7
HPLA[6:0]
HPLZCEN
1101011
(0dB)
0
Analogue Attenuation control for HPHONEL in 1dB steps. See Table
60.
Analogue
Attenuation
HPHONEL
HPHONEL zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store HPHONEL in intermediate latch (no change to output)
1 = Store HPHONEL and update attenuation on all channels.
(09h)
6:0
7
HPRA[6:0]
HPRZCEN
1101011
(0dB)
0
Analogue Attenuation control for HPHONER in 1dB steps. See Table
60.
Analogue
Attenuation
HPHONER
HPHONER zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store HPHONER in intermediate latch (no change to output)
1 = Store HPHONER and update attenuation on all channels.
PP Rev 1.94 November 2004
61
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
