Pre-Production
WM8850
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
PIN WIDGET CONTROL VERB
Verb ID
Payload [7:0]
00h
Response[31:0]
Get
Set
F07h
707h
Bits [31:0] in the table below
00000000h
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 as this in an input port
Not applicable as this in an input port
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
0
VRefEn
RW
0h
MICBIAS control:
0h = Hi-Z
1h = AVDD1 * 50%
2h = Ground (0V)
3h = Reserved
4h = AVDD1 * 80%
5h-7h = Reserved
Note: If VRefEn is set to a reserved value, the value programmed will be
0h (Hi-Z) to avoid any potential damage to external components
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
0Dh
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
0 = nothing plugged into Port-B
1 = something plugged into Port-B
Impedance sense value:
[30:0]
Impedance
Sense
R
7FFFFFFFh
7FFFFFFFh = measurement not ready
PP, April 2011, Rev 3.2
157
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
