WM8522

Pre-Production

w

PP Rev 3.1 May 2006

30

L/RDAX[7:0]

ATTENUATION LEVEL

00(hex)

-

∞ dB (mute)

01(hex)

-127dB

:

:

:

:

:

:

FE(hex)

-0.5dB

FF(hex)

0dB

Table 16 Digital Volume Control Attenuation Levels

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

WM8522 can be configured using the Control Interface. All unused bits should be set to ‘0’.

REGISTER

B15

B14

B13B12

B11

B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

DEFAULT

R0(00h)

0

0

0

0

0

0

0

UPDATE

LDA1[7:0]

011111111

R1(01h)

0

0

0

0

0

0

1

UPDATE

RDA1[7:0]

011111111

R2(02h)

0

0

0

0

0

1

0

PL[8:5]

IZD

ATC

PDWN

DEEMPALL

MUTEALL

100100000

R3(03h)

0

0

0

0

0

1

1

PHASE[8:6]

IWL[5:4]

BCP

LRP

FMT[1:0]

000000000

R4(04h)

0

0

0

0

1

0

0

UPDATE

LDA2[7:0]

011111111

R5(05h)

0

0

0

0

1

0

1

UPDATE

RDA2[7:0]

011111111

R6(06h)

0

0

0

0

1

1

0

UPDATE

LDA3[7:0]

011111111

R7(07h)

0

0

0

0

1

1

1

UPDATE

RDA3[7:0]

011111111

R8(08h)

0

0

0

1

0

0

0

UPDATE

MASTDA[7:0]

011111111

R9(09h)

0

0

0

1

0

0

1

DEEMP[8:6]

DMUTE[5:3]

DZFM[2:1]

ZCD

000000000

R10(0Ah)

0

0

0

1

0

1

0

RATE[8:6]

MS

PWRDNALL

DACPD[3:1]

0

010000000

R12(0Ch)

0

0

0

1

1

0

0

0

0

MPD

0

0

0

0

0

0

000000000

R31(1Fh)

0

0

1

1

1

1

1

RESET

000000000