wm8770 Wolfson Microelectronics plc, wm8770 Datasheet - Page 40

• Manufacturer Part Number: wm8770
• Description: 24-bit, 192khz 8-channel Codec With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8770
w
00110
Analogue
Attenuation
DACL4
00111
Analogue
Attenuation
DACR4
01000
Analogue
Master
Attenuation
(all channels)
01001
Digital
Attenuation
DACL1
01010
Digital
Attenuation
DACR1
01011
Digital
Attenuation
DACL2
01100
Digital
Attenuation
DACR2
01101
Digital
Attenuation
DACL3
REGISTER
ADDRESS
BIT
6:0
6:0
6:0
7:0
7:0
7:0
7:0
7:0
7
8
7
8
7
8
8
8
8
8
8
MASTA[6:0]
RDA1[6:0]
RDA2[7:0]
LDA1[7:0]
LDA2[7:0]
LDA3[7:0]
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
R4ZCEN
L4ZCEN
R4A[6:0]
L4A[6:0]
MZCEN
LABEL
Not latched
Not latched
Not latched
Not latched
Not latched
Not latched
Not latched
Not latched
DEFAULT
11111111
11111111
11111111
11111111
11111111
1111111
1111111
1111111
(0dB)
(0dB)
(0dB)
(0dB)
(0dB)
(0dB)
(0dB)
(0dB)
0
0
0
Attenuation Data for Left Channel DACL4 in 1dB steps. See Table
11
DACL2 Zero Cross Detect Enable
Controls simultaneous update of all Attenuation Latches
Attenuation Data for Left Channel DACL4 in 1dB steps. See Table
11
DACR2 Zero Cross Detect Enable
Controls simultaneous update of all Attenuation Latches
Attenuation Data for all DAC Gains in 1dB steps. See Table 11
Master Zero Cross Detect Enable
Controls simultaneous update of all Attenuation Latches
Digital Attenuation Data for Left Channel DACL1 in 0.5dB steps.
See Table 12
Controls simultaneous Update of all Attenuation Latches
Digital Attenuation Data for Right Channel DACR1 in 0.5dB steps.
See Table 12
Controls simultaneous update of all Attenuation Latches
Digital Attenuation data for Left channel DACL2 in 0.5dB steps.
See Table 12
Controls simultaneous update of all Attenuation Latches
Digital Attenuation Data for Right Channel DACR2 in 0.5dB steps.
See Table 12
Controls simultaneous update of all Attenuation Latches
Digital Attenuation Data for Left Channel DACL3 in 0.5dB steps.
See Table 12
Controls simultaneous update of all Attenuation Latches
0: Store DACL4 in intermediate latch (no change to output)
1: Store DACL4 and update attenuation on all channels.
0: Store DACR4 in intermediate latch (no change to output)
1: Store DACR4 and update attenuation on all channels.
0: Store gains in intermediate latch (no change to output)
1: Store gains and update attenuation on all channels.
0: Store LDA1 in intermediate latch (no change to output)
1: Store LDA1 and update attenuation on all channels
0: Store RDA1 in intermediate latch (no change to output)
1: Store RDA1 and update attenuation on all channels.
0: Store LDA2 in intermediate latch (no change to output)
1: Store LDA2 and update attenuation on all channels.
0: Store RDA2 in intermediate latch (no change to output)
1: Store RDA2 and update attenuation on all channels.
0: Store LDA3 in intermediate latch (no change to output)
1: Store LDA3 and update attenuation on all channels.
0: zero cross disabled
1: zero cross enabled
0: zero cross disabled
1: zero cross enabled
0: zero cross disabled
1: zero cross enabled
DESCRIPTION
PD Rev 4.2 March 2008
Production Data
40