Product Preview
WM8777
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
(29h)
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
Front Treble
Control
0 = Store GAIN FRONT TREBLE in intermediate latch (no
change to output)
1 = Store GAIN FRONT TREBLE and update attenuation
on all channels.
0101010
(2Ah)
3:0
8
CBASS[3:0]
UPDATE
0000
Gain control for Bass boost/cut – see table 3
Not latched
Controls simultaneous update of all Attenuation Latches
Center Bass
Control
0 = Store GAIN CENTER BASS in intermediate latch (no
change to output)
1 = Store GAIN CENTER BASS and update attenuation on
all channels.
0101011
(2Bh)
3:0
8
CTREB[3:0]
UPDATE
0000
Gain control for Bass boost/cut – see table 3
Not latched
Controls simultaneous update of all Attenuation Latches
Center Treble
Control
0 = Store GAIN CENTER TREBLE in intermediate latch
(no change to output)
1 = Store GAIN CENTER TREBLE and update attenuation
on all channels.
0101100
(2Ch)
1:0
3:2
5:4
CNTP[1:0]
FTRP[1:0]
FTLP[1:0]
00
00
00
PREGAIN control for CNTR control channel
00 = 0dB Attenuation
Mixer Pregain
01 = -6dB Attenuation
10 = -12dB Attenuation
11 = -18dB Attenuation
PREGAIN control for FRONTR tone control channel
00 = 0dB Attenuation
01 = -6dB Attenuation
10 = -12dB Attenuation
11 = -18dB Attenuation
PREGAIN control for FRONTL tone control channel
00 = 0dB Attenuation
01 = -6dB Attenuation
10 = -12dB Attenuation
11 = -18dB Attenuation
6
7
8
UPDATEC
UPDATER
UPDATEL
0
0
0
Controls simultaneous update of all Attenuation Latches
0 = Store PREGAIN CNTR in intermediate latch (no
change to output)
1 = Store PREGAIN CNTR and update attenuation on all
channels.
Controls simultaneous update of all Attenuation Latches
0 = Store PREGAIN RIGHT in intermediate latch (no
change to output)
1 = Store PREGAIN RIGHT and update attenuation on all
channels.
Controls simultaneous update of all Attenuation Latches
0 = Store PREGAIN LEFT in intermediate latch (no change
to output)
1 = Store PREGAIN LEFT and update attenuation on all
channels.
0101101
(2Dh)
0
1
2
AUXLPD
AUXRPD
SURLPD
1
1
1
Auxiliary left output powerdown.
0 = powerup
Output
Powerdown
1 = powerdown
Auxiliary left output powerdown.
0 = powerup
1 = powerdown
Surround left output powerdown.
0 = powerup
1 = powerdown
PP Rev 1.94 November 2004
85
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
