WM8581 datasheet(56/94 Pages) WOLFSON

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WM8581

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PP Rev 1.0 March 2006

ADDRESS

BIT

LABEL

CHANNEL

STATUS

BIT

DEFAULT

DESCRIPTION

CON/PRO

0 = Consumer Mode

1 = Professional Mode (not supported by

WM8581)

AUDIO_N

0 = S/PDIF transmitted data is audio PCM.

1 = S/PDIF transmitted data is not audio

PCM.

CPY_N

0 = Transmitted data has copyright asserted.

1 = Transmitted data has no copyright

assertion.

5:3

DEEMPH[2:0]

5:3

000

000 = Data from Audio interface has no pre-

emphasis.

001 = Data from Audio interface has pre-

emphasis.

010 = Reserved (Audio interface has pre-

emphasis).

011 = Reserved (Audio interface has pre-

emphasis).

All other modes are reserved and should not

be used.

R31

SPDTXCHAN 1

1Fh

7:6

CHSTMODE

[1:0]

7:6

00 = Only valid mode for consumer

applications.

Table 48 S/PDIF Transmitter Channel Bit Control 1

ADDRESS

BIT

LABEL

CHANNEL

STATUS

BIT

DEFAULT

DESCRIPTION

R32

SPDTXCHAN 2

20h

7:0

CATCODE

[7:0]

15:8

00000000

Category Code. Refer to S/PDIF

specification IEC60958-3 for details.

00h indicates “general” mode.

Table 49 S/PDIF Transmitter Channel Bit Control 2

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