wm8580a Wolfson Microelectronics plc, wm8580a Datasheet - Page 94

• Manufacturer Part Number: wm8580a
• Description: Multichannel Codec With S/pdif Transceiver
• Manufacturer: Wolfson Microelectronics plc

WM8580
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SPDRXCHAN 5
REGISTER
ADDRESS
SPDSTAT
PWRDN 1
R48
R49
R50
30h
31h
32h
BIT
5:4
3:1
7:4
5:4
0
0
1
2
3
6
0
1
CLKACU[1:0]
REC_FREQ
ORGSAMP
RXWL[2:0]
AUDIO_N
DEEMPH
UNLOCK
MAXWL
PCM_N
ADCPD
LABEL
CPY_N
PWDN
[3:0]
[1:0]
DEFAULT
--
0
1
-
-
-
-
-
-
-
-
-
Clock Accuracy of received clock.
Maximum Audio sample word length
Audio Sample Word Length.
000: Word Length Not Indicated
All other combinations are reserved and may give erroneous
operation. Data will be truncated internally when these bits are set
unless WL_MASK is set.
Original Sampling Frequency. See S/PDIF specification for details.
0000 = original sampling frequency not indicated
Linear PCM Identification
Indicates that non-audio code (defined in IEC-61937) has been
detected.
Recovered Channel Status bit-2.
Note this signal is inverted and will cause an interrupt on logic 0.
Recovered Channel Status bit-3
Indicates recovered S/PDIF clock frequency:
Indicates that the S/PDIF Clock Recovery circuit is unlocked or
that the input S/PDIF signal is not present.
Chip Powerdown Control (works in tandem with the other
powerdown registers):
ADC powerdown:
0 = Sync code not detected.
1 = Sync code detected – received data is not audio PCM.
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
00 = Invalid
01 = 96kHz / 88.2kHz
10 = 48kHz / 44.1kHz
11 = 32kHz
0 = Locked onto incoming S/PDIF stream.
1 = Not locked to the incoming S/PDIF stream or the incoming
S/PDIF stream is not present.
0 = All digital circuits running, outputs are active
1 = All digital circuits in power save mode, outputs muted
0 = ADC enabled
1 = ADC disabled
00 = Level II
01 = Level I
10 = Level III
11 = Interface frame rate not matched to sampling frequency.
0 = 20 bits
1 = 24 bits
0 = Data word represents audio PCM samples.
1 = Data word does not represent audio PCM samples.
RXWL[2:0]
001
010
100
101
110
DESCRIPTION
MAXWL==1
20 bits
22 bits
23 bits
24 bits
21 bits
PD, Rev 4.7, March 2009
Production Data
MAXWL==
16 bits
18 bits
19 bits
20 bits
17 bits
0
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