WM8850
Pre-Production
PROCESSING STATE VERB
Verb ID
F03h
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
703h
Bits [7:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
000000h
01h
Description
[31:8]
[7:0]
Reserved
Processing State
RW
The processing node is the high-pass filter (HPF). The processing state
is controlled as follows:
00h = Processing Off: HPF disabled
01h = Processing On: HPF enabled
02h = Processing Off: HPF disabled (benign not supported)
03h-7Fh = Reserved
80h-FFh = Vendor Specific – not used
POWER STATE VERB
Verb ID
F05h
Payload [7:0]
Response[31:0]
Get
Set
00h
Bits [31:0] in the table below
705h
Bits [7:0] in the table below
00000000h
Bit
Bitfield Name
Rsvd
RW
R
Default
000000h
3h
Description
[31:8]
[7:4]
Reserved
PS-Act
R
Indicates the actual power state of the MIC1 widget node:
0h = D0
1h = D1
2h = D2
3h = D3
The power state of the MIC1 widget is controlled by PS-Set below, however
the control may be superseded by the PS-Set of the AFG node.
[3:0]
PS-Set
RW
3h
Sets the power state of the MIC1 widget node:
0h = D0
1h = D1
2h = D2
3h = D3
CONVERTER STREAM, CHANNEL VERB
Verb ID
F06h
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
706h
Bits [7:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
000000h
0h
Description
[31:8]
[7:4]
Reserved
Stream
RW
Stream ID used by this widget. Note that Stream ID = 0h is used to
indicate an unused stream, and converters will not transfer/receive link
data for streams with an ID of 0h.
For multi-channel capture on MIC1 and MIC2, the Stream value should be
the same for both.
[3:0]
Channel
RW
0h
Lowest channel number used by this widget.
Note: When MIC1 and MIC2 are setup for multi-channel capture, only a
setting of 0h and 2h are applicable. However, the values are mutually
exclusive, in that if Channel has been set to 0h for the MIC1 node, it must
be set to 2h for the MIC2 node. Both nodes should have Channel set to 0h
PP, April 2011, Rev 3.2
102
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
