WM8850
Pre-Production
GET PARAMETER VERB
Verb ID
Payload [7:0]
Response[31:0]
Get
F00h
Parameter ID (PID)
Parameter Value
Audio Widget Capabilities Parameter (PID = 09h)
Bit
Bitfield Name
Rsvd
RW
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
Description
[31:24]
[23:20]
[19:16]
[15:12]
[11]
[10]
[9]
00h
3h
0h
0h
0
Reserved
Type
Indicates that this is an Audio Selector Widget
Latency not reported
Delay
Rsvd
Reserved
L-R Swap
PowerCntrl
Digital
Left/Right swap capability not supported
0
Indicates that the Power State Verb is not supported in this widget
Indicates that this widget is translating analogue data
Indicates that a connection list is present
0
[8]
Conn List
Unsol Capable
ProcWidget
Stripe
1
[7]
0
Widget supports Unsolicited Responses
[6]
0
Widget does not have processing capabilities
Widget does not support striping
[5]
0
[4]
Format Override
0
Widget does not override the format defined for the AFG
The AFG amplifier parameters are overridden for this node
[3]
Amp Parameter
Override
1
[2]
[1]
[0]
Out Amp Present
In Amp Present
Stereo
R
R
R
1
0
1
Output amplifier is present in this widget
Input amplifier not present in this widget
Indicates that this is a stereo widget
Connection List Length Parameter (PID = 0Eh)
Bit
Bitfield Name
Rsvd
RW
R
Default
000000h
0
Description
[31:8]
[7]
Reserved
Long Form
R
Indicates that the connection list items are in short form
Indicates that there is 1 NID entries in the connection list
[6:0]
Connection List
Length
R
01h
Output Amplifier Capabilities Response Format (PID = 12h)
Bit
Bitfield Name
Mute Capable
Rsvd
RW
R
Default
1
Description
[31]
PGA1 is capable of muting
[30:23]
[22:16]
[15]
R
0000h
01h
0
Reserved
Step Size
Rsvd
R
Gain step size is 0.5dB
R
Reserved
[14:8]
[7]
Num Steps
Rsvd
R
30h
0
Number of steps in gain range is 49 (−12dB to +12dB)
Reserved
R
[6:0]
Offset
R
18h
The step number that 0dB corresponds to is 18h
GET CONNECTION LIST ENTRY VERB
Verb ID
Payload [7:0]
Response[31:0]
Get
F02h
00h
Bits [31:0] in the table below
Bit
Bitfield Name
RW
R
Default
00h
Description
[31:24]
[23:16]
[15:8]
[7:0]
Conn List Entry 3
Conn List Entry 2
Conn List Entry 1
Conn List Entry 0
Unused connection list entry
Unused connection list entry
Unused connection list entry
R
00h
R
00h
R
0Ch
Indicates that the PGA1 Widget connects to the Port-E Pin Widget (NID =
0Ch)
PP, April 2011, Rev 3.2
142
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
