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
UNSOLICITED RESPONSE PRIORITY CONTROL VERB (VENDOR-SPECIFIC)
Verb ID
Payload [7:0]
00h
Response[31:0]
Get
Set
F8Eh
78Eh
Bits [31:0] in the table below
00000000h
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
AUTO-MUTE CONTROL VERB (VENDOR-SPECIFIC)
Verb ID
FB0h
Payload [7:0]
00h
Response[31:0]
Get
Set
Bits [31:0] in the table below
00000000h
7B0h
Bits [7:0] in the table below
Bit
Bitfield Name
Rsvd
RW
R
Default
Description
[31:1]
[0]
0000000h Reserved
PD_AUTOMUTE
RW
0
Controls the WM8850 automute behavior when there is nothing plugged
into Port-E:
0 = Automute disabled
1 = Automute enabled
Note: When PD_AUTOMUTE=1 and Presence Detect (bit 31 in verb
F09h)=1 the WM8850 will replace the samples in the stream with zeros
PP, April 2011, Rev 3.2
153
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
