WM8777
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REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0000000
(00h)
6:0
FRONTLA[6:0]
1101011
(0dB)
Analogue Attenuation control for FRONTL in 1dB steps. See
Table 60.
Analogue
Attenuation
FRONTL
7
8
FRONTLZCEN
UPDATE
0
FRONTL zero cross detect enable
0 = zero cross disabled
1 = zero cross enabled
Not latched
Controls simultaneous update of all Analogue Attenuation Latches
0 = Store FRONTL in intermediate latch (no change to
output)
1 = Store FRONTL and update attenuation on all channels.
0000001
(01h)
6:0
7
FRONTRA[6:0]
FRONTRZCEN
1101011
(0dB)
Analogue Attenuation control for FRONTR in 1dB steps. See
Table 60.
Analogue
Attenuation
FRONTR
0
FRONTR 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 FRONTR in intermediate latch (no change to
output)
1 = Store FRONTR and update attenuation on all channels.
0000010
(02h)
6:0
7
CNTRA[6:0]
CNTRZCEN
1101011
(0dB)
0
Analogue Attenuation control for CNTR in 1dB steps. See Table
60.
Analogue
Attenuation
CNTR
CNTR 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 CNTR in intermediate latch (no change to output)
1 = Store CNTR and update attenuation on all channels.
Analogue Attenuation control for LFE in 1dB steps. See Table 60.
0000011
(03h)
6:0
7
LFEA[6:0]
LFEZCEN
1101011
(0dB)
0
Analogue
Attenuation
LFE
LFE 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 LFE in intermediate latch (no change to output)
1 = Store LFE and update attenuation on all channels.
0000100
(04h)
6:0
7
SURLA[6:0]
SURLZCEN
1101011
(0dB)
0
Analogue Attenuation control for SURL in 1dB steps. See Table
60.
Analogue
Attenuation
SURL
SURL 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 SURL in intermediate latch (no change to output)
1 = Store SURL and update attenuation on all channels.
0000101
(05h)
6:0
7
SURRA[6:0]
SURRZCEN
1101011
(0dB)
0
Analogue Attenuation control for SUR Right in 1dB steps. Table
60.
Analogue
Attenuation
SURR
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.
PP Rev 1.94 November 2004
76
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
