WM8580A Datasheet, PDF (94/106 Pages) Wolfson Microelectronics plc – Multichannel CODEC with S/PDIF Transceiver

WM8580A
REGISTER BIT
ADDRESS
5:4
7:6
R45
7:0
SPDRXCHAN 2
2Dh
R46
3:0
SPDRXCHAN 3
2Eh
5:4
LABEL
Reserved
CHSTMODE
[1:0]
CATCODE
[7:0]
SRCNUM
[3:0]
CHNUM1[1:0]
7:6 CHNUM2[1:0]
R47
3:0
SPDRXCHAN 4
2Fh
5:4
FREQ[3:0]
CLKACU[1:0]
R48
0
SPDRXCHAN 5
30h
3:1
MAXWL
RXWL[2:0]
7:4
R49
0
SPDSTAT
31h
1
ORGSAMP
[3:0]
AUDIO_N
PCM_N
DEFAULT
-
-
DESCRIPTION
Reserved for additional de-emphasis modes.
00 = Only valid mode for consumer applications.
Production Data
-
Category Code. Refer to S/PDIF specification for details.
00h indicates “general” mode.
-
Indicates S/PDIF source number.
-
Channel number for sub-frame 1.
00 = Take no account of channel number (channel 1 defaults to left
DAC)
01 = channel 1 to left channel
10 = channel 1 to right channel
Channel number for sub-frame 2.
00 = Take no account of channel number (channel 2 defaults to left
DAC)
01 = channel 2 to left channel
10 = channel 2 to right channel
-
Sampling Frequency Indicated
Refer to S/PDIF specification IEC60958-3 for details.
0001 = Sampling Frequency not indicated.
-
Clock Accuracy of received clock.
00 = Level II
01 = Level I
10 = Level III
11 = Interface frame rate not matched to sampling frequency.
-
Maximum Audio sample word length
0 = 20 bits
1 = 24 bits
-
Audio Sample Word Length.
000: Word Length Not Indicated
RXWL[2:0]
MAXWL==1
MAXWL==
0
001
20 bits
16 bits
010
22 bits
18 bits
100
23 bits
19 bits
101
24 bits
20 bits
110
21 bits
17 bits
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
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.
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PD, Rev 4.9, November 2013
94