WM8777
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REGISTER ADDRESS
(2Ch)
BIT
LABEL
DEFAULT DESCRIPTION
PREGAIN control for CNTR
control channel
1:0
CNTP[1:0]
00
00
00
0
Mixer Pregain
00 = 0dB Attenuation
01 = -6dB Attenuation
10 = -12dB Attenuation
11 = -18dB Attenuation
3:2
5:4
6
FTRP[1:0]
FTLP[1:0]
UPDATEC
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
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.
7
UPDATER
0
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.
8
UPDATEL
0
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.
Table 6 Mixer Pre-Gain Registers
PP Rev 1.94 November 2004
18
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
