Production Data
WM8805
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
10h
5:4
CLKACU[1:0]
11
Clock Accuracy of Received Clock
00 = Level II
(read-only)
01 = Level I
10 = Level III
11 = Interface frame rate not matched to
sampling frequency.
R17
RXCHAN5
11h
0
MAXWL
1
Maximum Audio Sample Word Length
0 = 20 bits
1 = 24 bits
(read-only)
3:1
RXWL[2:0]
000
Audio Sample Word Length
000: Word Length Not Indicated
RXWL[2:0]
001
MAXWL==1
20 bits
MAXWL==0
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 should
not be used.
7:4
0
ORGSAMP
[3:0]
0000
0
Original Sampling Frequency
Refer to S/PDIF specification (IEC 60958-3) for
full details
R18
SPDTX1
12h
CON/PRO
Use Of Channel Status Block
0 = Consumer Mode
1 = Professional Mode (not supported by
WM8805)
1
2
AUDIO_N
CPY_N
0
0
Linear PCM Identification
0 = S/PDIF transmitted data is audio PCM.
1 = S/PDIF transmitted data is not audio PCM.
Copyright Information
0 = Transmitted data has copyright asserted.
1 = Transmitted data has no copyright
assertion.
5:3
DEEMPH[2:0]
000
Additional Format Information
000 = Data from Audio interface has no pre-
emphasis.
001 = Data from Audio interface has pre-
emphasis.
All other modes are reserved and should not
be used.
7:6
7:0
CHSTMODE
[1:0]
00
Channel Status Mode
00 = Only valid mode for consumer
applications.
R19
SPDTX2
13h
CATCODE
[7:0]
00000000
Category Code
Refer to S/PDIF specification (IEC 60958-3) for
full details.
00h indicates “general” mode.
Source Number
R20
SPDTX3
14h
3:0
5:4
SRCNUM
[3:0]
0000
00
No definitions are attached to data.
Channel Number for Subframe 1
CHNUM1[1:0]
CHNUM1
Channel Status Bits[21:20]
Do not use channel number
Send to Left Channel
00
01
10
Send to Right Channel
PD Rev 4.1 September 07
59
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
