Production Data
WM8770
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
00000
6:0
L1A[6:0]
1111111
(0dB)
Attenuation Data for Left Channel DACL1 in 1dB steps. See Table
11
Analogue
Attenuation
DACL1
7
8
L1ZCEN
UPDATE
0
DACL1 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL1 in intermediate latch (no change to output)
1: Store DACL1 and update attenuation on all channels.
00001
6:0
7
R1A[6:0]
R1ZCEN
1111111
(0dB)
Attenuation Data for Left channel DACL1 in 1dB steps. See Table
11
Analogue
Attenuation
DACR1
0
DACR1 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR1 in intermediate latch (no change to output)
1: Store DACR1 and update attenuation on all channels.
00010
6:0
7
L2A[6:0]
L2ZCEN
1111111
(0dB)
0
Attenuation Data for Left Channel DACL2 in 1dB Steps. See
Table 11
Analogue
Attenuation
DACL2
DACL2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL2 in intermediate latch (no change to output)
1: Store DACL2 and update attenuation on all channels.
00011
6:0
7
R2A[6:0]
R2ZCEN
1111111
(0dB)
0
Attenuation Data for Right Channel DACR2 in 1dB steps. See
Table 11
Analogue
Attenuation
DACR2
DACR2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR2 in intermediate latch (no change to output)
1: Store DACR2 and update attenuation on all channels.
00100
6:0
7
L3A[6:0]
L3ZCEN
1111111
(0dB)
0
Attenuation Data for Left channel DACL3 in 1dB steps. See Table
11
Analogue
Attenuation
DACL3
DACL2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACL3 in intermediate latch (no change to output)
1: Store DACL3 and update attenuation on all channels.
Attenuation Data for Left channel DACL3 in 1dB steps. Table 11
00101
6:0
7
R3A[6:0]
R3ZCEN
1111111
(0dB)
0
Analogue
Attenuation
DACR3
DACR2 Zero Cross Detect Enable
0: zero cross disabled
1: zero cross enabled
8
UPDATE
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store DACR3 in intermediate latch (no change to output)
1: Store DACR3 and update attenuation on all channels.
PD Rev 4.1 June 2005
39
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
