WM8580AGEFTRV WOLFSON [Wolfson Microelectronics plc], WM8580AGEFTRV Datasheet - Page 65
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WM8580AGEFTRV
Manufacturer Part Number
WM8580AGEFTRV
Description
Multichannel CODEC with S/PDIF Transceiver
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8580AGEFTRV.pdf
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Production Data
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Table 63 S/PDIF Status Register
Table 64 Interrupt Mask Control Register
REGISTER
ADDRESS
SPDSTAT
(read-only)
R49
REGISTER
31h
ADDRESS
INTMASK
R37
25h
BIT
5:4
0
1
2
3
6
The interrupt and update signals used to generate INT_N can be masked as necessary. The MASK
register bit prevents flags from asserting INT_N and from updating the Interrupt Status Register
(R43). Masked flags update the S/PDIF Status Register (R49).
BIT
8:0
REC_FREQ
AUDIO_N
DEEMPH
UNLOCK
PCM_N
LABEL
CPY_N
[1:0]
MASK[8:0]
LABEL
DEFAULT
--
-
-
-
-
-
DEFAULT
000000000
Linear PCM Identification
0 = Data word represents audio PCM samples.
1 = Data word does not represent audio PCM samples.
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.
Recovered Channel Status bit-2 (active low).
0 = Copyright is asserted for this data.
1 = Copyright is not asserted for this data.
Recovered Channel Status bit-3
0 = Recovered S/PDIF data has no pre-emphasis.
1 = Recovered S/PDIF data has pre-emphasis
Indicates recovered S/PDIF clock frequency:
00 = Invalid
01 = 96kHz / 88.2kHz
10 = 48kHz / 44.1kHz
11 = 32kHz
Indicates that the S/PDIF Clock Recovery circuit is
unlocked or that the input S/PDIF signal is not present.
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.
When a flag is masked, it does not update the Interrupt
Status Register or assert INT_N.
0 = unmask, 1 = mask.
MASK[0] = mask control for UPD_UNLOCK
MASK[1] = mask control for INT_INVALID
MASK[2] = mask control for INT_CSUD
MASK[3] = mask control for INT_TRANS_ERR
MASK[4] = mask control for UPD_AUDIO_N
MASK[5] = mask control for UPD_PCM_N
MASK[6] = mask control for UPD_CPY_N
MASK[7] = mask control for UPD_DEEMPH
MASK[8] = mask control for UPD_REC_FREQ
DESCRIPTION
DESCRIPTION
PD Rev 4.3 August 2007
WM8580
65
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