WM8580
Production Data
REGISTER
ADDRESS
BIT
LABEL
CHANNEL
STATUS
BIT
DEFAULT
DESCRIPTION
R32
SPDTXCHAN 2
20h
7:0
CATCODE
[7:0]
15:8
00000000
Category Code. Refer to S/PDIF
specification IEC60958-3 for details.
00h indicates “general” mode.
Table 51 S/PDIF Transmitter Channel Status Bit Control 2
REGISTER
ADDRESS
BIT
LABEL
CHANNEL
STATUS
BIT
DEFAULT
DESCRIPTION
R33
SPDTXCHAN 3
21h
3:0
5:4
SRCNUM
[3:0]
19:16
0000
00
Indicates S/PDIF source number.
No definitions are attached to data.
Channel Number for Subframe 1
CHNUM1[1:0]
21:20
CHNUM1
Function
00
01
10
11
Do not use channel number
Send to Left Channel
Send to Right Channel
Do not use channel number
7:6
CHNUM2[1:0]
00
Channel Number for Subframe 2
23:22
CHNUM2
Function
00
01
10
11
Do not use channel number
Send to Left Channel
Send to Right Channel
Do not use channel number
Table 52 S/PDIF Transmitter Channel Status Bit Control 3
REGISTER
ADDRESS
BIT
LABEL
CHANNEL
STATUS
BIT
DEFAULT
DESCRIPTION
R34
SPDTXCHAN 4
22h
3:0
FREQ[3:0]
27:24
0001
Sampling Frequency Indicated
See S/PDIF specification IEC60958-3 for
details.
0001 = Sampling Frequency not indicated.
Clock Accuracy of Transmitted clock.
00 = Level II
5:4
CLKACU[1:0]
29:28
11
01 = Level I
10 = Level III
11 = Interface frame rate not matched to
sampling frequency.
Table 53 S/PDIF Transmitter Channel Status Bit Control 4
PD Rev 4.3 August 2007
58
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
