wm8805 Wolfson Microelectronics plc, wm8805 Datasheet - Page 58

• Manufacturer Part Number: wm8805
• Description: 8 1 Digital Interface Transceiver With Pll
• Manufacturer: Wolfson Microelectronics plc

WM8805
w
REGISTER
ADDRESS
(read-only)
(read-only)
(read-only)
RXCHAN1
RXCHAN2
RXCHAN3
RXCHAN4
R13
0Dh
R14
R15
R16
0Eh
0Fh
BIT
5:4
7:6
7:0
3:0
5:4
7:6
3:0
5:4
0
1
2
3
6
CHNUM1[1:0]
CHNUM2[1:0]
CHSTMODE
REC_FREQ
CATCODE
FREQ[3:0]
CON/PRO
AUDIO_N
DEEMPH
Reserved
SRCNUM
UNLOCK
LABEL
CPY_N
[1:0]
[1:0]
[7:0]
[3:0]
DEFAULT
00000000
0001
0000
00
00
00
00
--
0
0
0
0
-
Recovered Frequency Flag
Indicates recovered S/PDIF clock frequency:
00 = 192kHz
01 = 96kHz or 88.2kHz
10 = 48kHz or 44.1kHz
11 = 32kHz
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.
Use Of Channel Status Block
0 = Consumer Mode
1 = Professional Mode
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.
Copyright Information
0 = Copyright is asserted for Rx data.
1 = Copyright is not asserted for Rx data.
Additional Format information
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
00 = Only valid mode for consumer
applications.
Category Code
Category Code. Refer to S/PDIF specification
(IEC 60958-3) for full details.
00h indicates “general” mode.
S/PDIF Source Number
Indicates number of S/PDIF source. Refer to
S/PDIF specification (IEC 60958-3) for full
details.
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
Refer to S/PDIF specification (IEC 60958-3) for
full details.
DESCRIPTION
PD, Rev 4.5, March 2009
Production Data
58