WM8771
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01001
7:0
8
LDA1[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Left channel DACL1 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACL1
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA1 in intermediate latch (no change to output)
1: Store LDA1 and update attenuation on all channels
01010
7:0
8
RDA1[6:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Right channel DACR1 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACR1
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA1 in intermediate latch (no change to output)
1: Store RDA1 and update attenuation on all channels.
01011
7:0
8
LDA2[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Left channel DACL2 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACL2
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA2 in intermediate latch (no change to output)
1: Store LDA2 and update attenuation on all channels.
01100
7:0
8
RDA2[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Right channel DACR2 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACR2
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA2 in intermediate latch (no change to output)
1: Store RDA2 and update attenuation on all channels.
01101
7:0
8
LDA3[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Left channel DACL3 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACL3
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA3 in intermediate latch (no change to output)
1: Store LDA3 and update attenuation on all channels.
01110
7:0
8
RDA3[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Right channel DACR3 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACR3
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA3 in intermediate latch (no change to output)
1: Store RDA3 and update attenuation on all channels.
01111
7:0
8
LDA4[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Left channel DACL4 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACL4
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store LDA4 in intermediate latch (no change to output)
1: Store LDA4 and update attenuation on all channels.
10000
7:0
8
RDA4[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for Right channel DACR4 in 0.5dB steps.
See Table 10
Digital
Attenuation
DACR4
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store RDA4 in intermediate latch (no change to output)
1: Store RDA4 and update attenuation on all channels.
10001
7:0
8
MASTDA[7:0]
UPDATE
11111111
(0dB)
Digital Attenuation data for all DAC channels in 0.5dB steps. See
Table 10
Master
Digital
Attenuation
Not latched
Controls simultaneous update of all Attenuation Latches
0: Store gain in intermediate latch (no change to output)
1: Store gain and update attenuation on all channels.
(all channels)
PP Rev 2.0 December 2001
34
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
