WM8850
Pre-Production
PIN WIDGET CONTROL VERB
Verb ID
F07h
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
707h
Bits [7:0] in the table below
Bit
[31:8]
[7]
Bitfield Name
Rsvd
RW
R
Default
Description
000000h
Reserved
H-Phn Enable
Out Enable
In Enable
R
0
0
1
Not applicable for S/PDIF In
Not applicable for S/PDIF In
Controls the input path:
0 = Input path is disabled
1 = Input path is enabled
Reserved
[6]
R
[5]
RW
[4:3]
[2:0]
Rsvd
R
R
0h
0h
VRefEn
Selectable VRef not supported
UNSOLICITED RESPONSE VERB
Verb ID
F08h
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
708h
Bits [7:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
000000h
0
Description
[31:8]
[7]
Reserved
Enable
RW
0 = Unsolicited Responses disabled for this node
1 = Unsolicited Responses enabled for this node
Reserved
[6]
Rsvd
Tag
R
0
[5:0]
RW
10h
A software programmable tag value that is returned in the top six bits
(31:26) of every Unsolicited Response from this node.
The default for Tag is equal to the Node ID.
Note: The Unsolicited Response for the AFG node is defined in the “Unsolicited Responses” section.
PIN SENSE VERB
Verb ID
F09h
Payload [7:0]
Response[31:0]
Get
00h
00h
Bits [31:0] in the table below
00000000h
Execute
709h
Bit
Bitfield Name
RW
Default
Description
[31]
Presence Detect
R
0
The value reported here relflects the lock status of the S/PDIF receiver:
0 = S/PDIF Rx is unlocked
1 = S/PDIF Rx is locked
[30:0]
Impedance
Sense
R
00000000h
Impedance sense not supported
PP, April 2011, Rev 3.2
174
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
