WM8581 Wolfson Microelectronics Ltd., WM8581 Datasheet - Page 90

• Manufacturer Part Number: WM8581
• Description: Multichannel Codec with S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8581
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SPDRXCHAN 1
REGISTER
ADDRESS
INTSTAT
GPO4
R41
R43
2Bh
R44
29h
2C
BIT
3:0
5:4
0
1
2
3
4
5
6
7
0
1
2
3
UPD_NON_AUDIO
INT_TRANS_ERR
UPD_REC_FREQ
UPD_DEEMPH
UPD_UNLOCK
GPO7OP[3:0]
INT_INVALID
UPD_CPY_N
CON/PRO
AUDIO_N
INT_CSUD
DEEMPH
Reserved
LABEL
CPY_N
DEFAULT
0110
-
-
-
-
-
-
-
-
-
-
-
-
-
0010 = U
0011 = C
0100 = P
0101 = SFRM_CLK
0110 = 192BLK
0111 = UNLOCK
1000 = CSUD
1001 = Invalid
1010 = ZFLAG
1011 = NON_AUDIO
1100 = CPY_N
1101 = DEEMP
1110 = Set GPO as S/PDIF input (standard CMOS input buffer).
Only applicable for GPO3/4/5.
1111 = Set GPO as S/PDIF input (‘comparator’ input for AC
coupled consumer S/PDIF signals). Only applicable for GPO3/4/5
UNLOCK flag update signal
0 = INT_N not caused by update to UNLOCK flag
1 = INT_N caused by update to UNLOCK flag
INVALID flag interrupt signal
0 = INT_N not caused by INVALID flag
1 = INT_N caused by INVALID flag
CSUD flag interrupt signal
0 = INT_N not caused by CSUD flag
1 = INT_N caused by CSUD flag
TRANS_ERR flag interrupt signal
0 = INT_N not caused by TRANS_ERR flag
1 = INT_N caused by TRANS_ERR flag
NON_AUDIO update signal
0 = INT_N not caused by update to NON_AUDIO flag
1 = INT_N caused by update to NON_AUDIO flag
CPY_N update signal
0 = INT_N not caused by update to CPY_N flag
1 = INT_N caused by update to CPY_N flag
DEEMPH update signal
0 = INT_N not caused by update to DEEMPH flag
1 = INT_N caused by update to DEEMPH flag
REC_FREQ update signal
0 = INT_N not caused by update to REC_FREQ flag
1 = INT_N caused by update to REC_FREQ flag
0 = Consumer Mode
1 = Professional Mode
The WM8581 is a consumer mode device. Detection of
professional mode may give erroneous behaviour.
Recovered S/PDIF Channel status bit 1.
0 = Data word represents audio PCM samples.
1 = Data word does not represent audio PCM samples.
0 = Copyright is asserted for this data.
1 = Copyright is not asserted for this data.
0 = Recovered S/PDIF data has no pre-emphasis.
1 = Recovered S/PDIF data has pre-emphasis.
Reserved for additional de-emphasis modes.
DESCRIPTION
PD Rev 4.0 April 2007
Production Data
90