WM8741 datasheet(47/66 Pages) CIRRUS

47 / 66 page

Production Data

WM8741

PD, Rev 4.3, February 2013

ADDRESS

BITS

NAME

DEFAULT

DESCRIPTION

Format

Control

05h

[1:0]

IWL[1:0]

Audio interface input word length.

00 = 16-bit

01 = 20-bit

10 = 24-bit

11 = 32-bit

[3:2]

FMT[1:0]

Audio data format select.

00 = right justified mode

01 = left justified mode

10 = I2S mode

11 = DSP mode

LRP

Polarity select for LRCLK/DSP mode select.

0 = normal LRCLK polarity/DSP mode A

1 = inverted LRCLK polarity/DSP mode B

BCP

BCLK / DSD64CLK polarity select:

0 = normal polarity

1 = inverted polarity

REV

Analogue output phase control:

0 = Normal

1 = Inverted

PWDN

Power Down Mode Select:

0 = Normal Mode

1 = Power Down Mode

Table 58 R5 Format Control Register

ADDRESS

BITS

NAME

DEFAULT

DESCRIPTION

Filter Control

06h

[2:0]

FIRSEL

000

Select advanced digital filter response:

000 = Response 1

001 = Response 2

010 = Response 3

011 = Response 4

100 = Response 5

[4:3]

DSDFILT

Select DSD compensation filter response:

00 = Response 1

01 = Response 2

10 = Response 3

11 = Response 4

[6:5]

DEEMPH

[1:0]

De-emphasis mode select:

00 = De-emphasis Off

01 = De-emphasis 32kHz

10 = De-emphasis 44.1kHz

11 = De-emphasis 48kHz

ZFLAG_HI

ZFLAG Force High Control

0 = Normal operation

1 = Output Logic 1

Table 59 R6 Filter Control Register

WM8741 Datasheet(PDF) 47 Page - Cirrus Logic

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