WM8766
Preliminary Technical Data
SOFTWARE REGISTER RESET
Writing to register 11111 will cause a register reset, resetting all register bits to their default values.
The device will be held in this reset state until a subsequent register write to any address is
completed.
REGISTER MAP
The complete register map is shown below. The detailed description can be found in the relevant text of the device description. The
WM8766 can be configured using the Control Interface. All unused bits should be set to ‘0’.
REGISTER
R0(00h)
B15 B14 B13 B12 B11 B10 B9
B8
B7
B6
B5
B4
LDA1[7:0]
RDA1[7:0]
B3
B2
B1
B0
DEFAULT
UPDATE
011111111
0
0
0
0
0
0
0
0
0
0
0
0
0
1
UPDATE
011111111
R1(01h)
PL[8:5]
IZD
ATC
PDWN DEEMPALL MUTEALL 100100000
R2(02h)
0
0
0
0
0
1
0
PHASE[8:6]
FMT[1:0]
IWL[5:4]
BCP
LDA2[7:0]
LRP
000000000
011111111
011111111
011111111
011111111
011111111
000000000
010000000
R3(03h)
R4(04h)
R5(05h)
R6(06h)
R7(07h)
R8(08h)
R9(09h)
R10(0Ah)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
1
1
1
1
0
0
0
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
UPDATE
UPDATE
UPDATE
UPDATE
UPDATE
RDA2[7:0]
LDA3[7:0]
RDA3[7:0]
MASTDA[7:0]
DEEMP[8:6]
DMUTE[5:3]
DZFM[2:1]
ZCD
DACRATE[8:6]
0
MS
PWRDNALL
0
DACPD[ 3: 1]
0
0
0
0
0
MPD
0
0
0
0
0
0
000000000
R12(0Ch)
0
0
0
1
1
0
0
0
MPD
0
0
0
000000000
000000000
R15(0Fh)
R31(1Fh)
0
0
0
0
0
1
1
1
1
1
1
1
1
1
RESET
PTD Rev 2.3 February 2004
26
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
