WM8805
Production Data
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
5:4
REC_FREQ
[1:0]
--
Recovered Frequency Flag
Indicates recovered S/PDIF clock frequency:
00 = 192kHz
01 = 96kHz or 88.2kHz
10 = 48kHz or 44.1kHz
11 = 32kHz
6
0
1
UNLOCK
CON/PRO
AUDIO_N
-
Unlock Flag
Indicates that the S/PDIF Rx clock recovery
circuit is unlocked.
0 = Locked onto incoming S/PDIF stream.
1 = Not locked onto the incoming S/PDIF
stream.
R13
0
0
Use Of Channel Status Block
0 = Consumer Mode
RXCHAN1
0Dh
1 = Professional Mode
(read-only)
The WM8805 is a consumer mode device.
Detection of professional mode may give
erroneous behaviour.
Linear PCM Identification
0 = Data word represents audio PCM samples.
1 = Data word does not represent audio PCM
samples.
2
3
CPY_N
0
0
Copyright Information
0 = Copyright is asserted for Rx data.
1 = Copyright is not asserted for Rx data.
Additional Format information
DEEMPH
0 = Recovered S/PDIF data has no pre-
emphasis.
1 = Recovered S/PDIF data has pre-emphasis.
Reserved for additional de-emphasis modes.
Channel Status Mode
5:4
7:6
Reserved
CHSTMODE
[1:0]
00
00
00 = Only valid mode for consumer
applications.
R14
7:0
CATCODE
[7:0]
00000000
Category Code
RXCHAN2
0Eh
Category Code. Refer to S/PDIF specification
(IEC 60958-3) for full details.
00h indicates “general” mode.
(read-only)
R15
RXCHAN3
0Fh
3:0
5:4
SRCNUM
[3:0]
0000
00
S/PDIF Source Number
Indicates number of S/PDIF source. Refer to
S/PDIF specification (IEC 60958-3) for full
details.
(read-only)
CHNUM1[1:0]
CHNUM2[1:0]
FREQ[3:0]
Channel Number For Sub-frame 1
00 = do not use channel number
01 = channel 1 to left channel
10 = channel 1 to right channel
Channel Number For Sub-frame 2
00 = do not use channel number
01 = channel 2 to left channel
10 = channel 2 to right channel
Indicated Sampling Frequency
7:6
3:0
00
R16
0001
RXCHAN4
Refer to S/PDIF specification (IEC 60958-3) for
full details.
PD Rev 4.1 September 07
58
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
