WM8580 datasheet(84/92 Pages) WOLFSON

84 / 92 page

WM8580

Production Data

PD Rev 4.0 February 2007

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

3:0

SRCNUM

[3:0]

Indicates number of S/PDIF source.

R46

SPDRXCHAN 3

2Eh

7:4

CHNUM1[3:0]

Channel number for channel 1.

0000 = Take no account of channel number (channel 1 defaults to

left DAC)

0001 = channel 1 to left channel

0010 = channel 1 to right channel

3:0

FREQ[3:0]

Sampling Frequency. See S/PDIF specification for details.

0001 = Sampling Frequency not indicated.

R47

SPDRXCHAN 4

2Fh

5:4

CLKACU[1:0]

Clock Accuracy of received clock.

00 = Level II

01 = Level I

10 = Level III

11 = Interface frame rate not matched to sampling frequency.

MAXWL

Maximum Audio sample word length

0 = 20 bits

1 = 24 bits

Audio Sample Word Length.

000: Word Length Not Indicated

RXWL[2:0]

MAXWL==1

MAXWL==

001

20 bits

16 bits

010

22 bits

18 bits

100

23 bits

19 bits

101

24 bits

20 bits

110

21 bits

17 bits

3:1

RXWL[2:0]

All other combinations are reserved and may give erroneous

operation. Data will be truncated internally when these bits are set

R48

SPDRXCHAN 5

30h

7:4

ORGSAMP

[3:0]

Original Sampling Frequency. See S/PDIF specification for details.

0000 = original sampling frequency not indicated

AUDIO_N

Recovered Channel Status bit-1.

0 = Data word represents audio PCM samples.

1 = Data word does not represent audio PCM samples.

PCM_N

Indicates that non-audio code (defined in IEC-61937) has been

detected.

0 = Sync code not detected.

1 = Sync code detected – received data is not audio PCM.

CPY_N

Recovered Channel Status bit-2.

0 = Copyright is asserted for this data.

1 = Copyright is not asserted for this data.

Note this signal is inverted and will cause an interrupt on logic 0.

DEEMPH

Recovered Channel Status bit-3

0 = Recovered S/PDIF data has no pre-emphasis.

1 = Recovered S/PDIF data has pre-emphasis

R49

SPDSTAT

31h

5:4

REC_FREQ

[1:0]

Indicates recovered S/PDIF clock frequency:

00 = 192kHz

01 = 96kHz / 88.2kHz

10 = 48kHz / 44.1kHz

11 = 32kHz

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