WM8850
Pre-Production
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
2h
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
when not in multi-channel capture mode.
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
0h
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
0h
[5:0]
RW
15h
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.
UNSOLICITED RESPONSE PRIORITY CONTROL VERB (VENDOR-SPECIFIC)
Verb ID
F8Eh
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
78Eh
Bits [7:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
0000000h Reserved
00h
Description
[31:5]
[4:0]
Priority
RW
Assigns a priority setting for queued Unsolicited Responses. Nodes with
the lowest value have the highest priority, and so go to the front of the
Unsolicited Response queue. Nodes with the same value for priority are
queued on first-to-trigger basis.
00h = Highest priority
…
1Fh = Lowest priority
PP, April 2011, Rev 3.2
204
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
