WM8804 datasheet(36/66 Pages) WOLFSON

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WM8804

Production Data

PD Rev 4.1 September 2007

ADDRESS

BIT

LABEL

CHANNEL

STATUS

BIT

DEFAULT

DESCRIPTION

CON/PRO

Use Of Channel Status Block

0 = Consumer Mode

1 = Professional Mode

The WM8804 is a consumer mode device.

Detection of professional mode may give

erroneous behaviour.

AUDIO_N

Linear PCM Identification

0 = Data word represents audio PCM

samples.

1 = Data word does not represent audio

PCM samples.

CPY_N

0 = Copyright is asserted for Rx data.

1 = Copyright is not asserted for Rx data.

DEEMPH

Additional Format Information

0 = Recovered S/PDIF data has no pre-

emphasis.

1 = Recovered S/PDIF data has pre-

emphasis.

5:4

Reserved

5:4

Reserved for additional de-emphasis modes.

R13

RXCHAN1

0Dh

(read-only)

7:6

CHSTMODE

[1:0]

7:6

Channel Status Mode

00 = Only valid mode for consumer

applications.

Table 40 S/PDIF Receiver Channel Status Register 1

ADDRESS

BIT

LABEL

CHANNEL

STATUS

BIT

DEFAULT

DESCRIPTION

R14

RXCHAN2

0Eh

(read-only)

7:0

CATCODE

[7:0]

15:8

00000000

Category Code

Refer to S/PDIF specification (IEC 60958-3)

for full details.

0x00h indicates “general” mode.

Table 41 S/PDIF Receiver Channel Status Register 2

ADDRESS

BIT

LABEL

CHANNEL

STATUS

BIT

DEFAULT

DESCRIPTION

3:0

SRCNUM

[3:0]

19:16

0000

S/PDIF Source Number

Refer to S/PDIF specification (IEC 60958-3)

for full details.

5:4

CHNUM1[1:0]

21:20

Channel Number for Sub-frame 1

00 = do not use channel number

01 = channel 1 to left channel

10 = channel 1 to right channel

R15

RXCHAN3

0Fh

(read-only)

7:6

CHNUM2[1:0]

23:22

Channel Number for Sub-frame 2

00 = do not use channel number

01 = channel 2 to left channel

10 = channel 2 to right channel

Table 42 S/PDIF Receiver Channel Status Register 3

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