WM8746 Wolfson Microelectronics plc, WM8746 Datasheet - Page 23

• Manufacturer Part Number: WM8746
• Description: 24-bit, 192khz 6-channel Dac With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8746
REGISTER MAP
The complete register map is shown below. The detailed description can be found in the relevant text of the device description.
There are 9 registers with 9 bits per register. These can be controlled using the Control Interface.
Table 12 Register Map
w
M0
M1
M2
M3
M4
M5
M6
M7
M8
M9
0000000
Attenuation
DACL0
0000001
Attenuation
DACR0
REGISTER
ADDRESS
A6
0
0
0
0
0
0
0
0
0
0
A5
0
0
0
0
0
0
0
0
0
0
BIT
7:0
7:0
8
8
A4
0
0
0
0
0
0
0
0
0
0
UPDATE
UPDATE
R0A[7:0]
L0A[7:0]
LABEL
A3
0
0
0
0
0
0
0
0
1
1
A2
0
0
0
0
1
1
1
1
0
0
Not latched
Not latched
11111111
11111111
DEFAULT
(0dB)
(0dB)
A1
0
0
1
1
0
0
1
1
0
0
A0
0
1
0
1
0
1
0
1
0
1
Attenuation level of left channel DACL0 in 0.5dB steps, see Table 8.
Controls simultaneous update of all Attenuation Latches
Attenuation level of left channel DACR0 in 0.5dB steps, see Table 8.
Controls simultaneous update of all Attenuation Latches
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE MASTA7 MASTA 6 MASTA 5 MASTA 4 MASTA 3 MASTA 2 MASTA 1 MASTA 0
REV2
PL3
D8
0: Store DACL0 in intermediate latch (no change to output)
1: Store DACL0 and update attenuation on all channels.
0: Store DACR0 in intermediate latch (no change to output)
1: Store DACR0 and update attenuation on all channels.
0
REV1
L0A7
R0A7
L1A7
R1A7
L2A7
R2A7
PL2
D7
0
R0A 6
R1A 6
R2A 6
L0A 6
REV0
L1A 6
L2A 6
PL1
D6
0
DESCRIPTION
R0A 5
R1A 5
R2A 5
L0A 5
L1A 5
L2A 5
IWL1
PL0
D5
0
R0A 4
R1A 4
R2A 4
L0A 4
L1A 4
L2A 4
IWL0
IZD
D4
0
R0A 3
R1A 3
R2A 3
L0A 3
L1A 3
L2A 3
ATC
BCP
D3
0
PD, October 2008, Rev 4.2
PDWN DEEMPH
L0A 2
R0A 2
L1A 2
R1A 2
L2A 2
R2A 2
LRP
D2
0
Production Data
R0A 1
R1A 1
R2A 1
L0A 1
FMT1
L1A 1
L2A 1
ZCD
D1
MUTE
R0A 0
R1A 0
R2A 0
L0A 0
FMT0
L1A 0
L2A 0
2SPD
D0
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