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WM8860 Datasheet(PDF) 164 Page - Wolfson Microelectronics plc

Part # WM8860
Description  Multi-Channel High Definition Audio CODEC
PDF  184 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8860 Datasheet(HTML) 164 Page - Wolfson Microelectronics plc

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WM8860
Pre-Production
w
PP, April 2011, Rev 3.2
164
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
RW
Default
Description
[31:24]
Rsvd
R
00h
Reserved
[23:20]
Type
R
7h
Indicates that this is a Beep Generator Widget
[19:4]
Rsvd
R
0000h
Reserved
[3]
Amp Parameter
Override
R
1
The AFG amplifier parameters are overridden for this node
[2]
Out Amp Present
R
1
Output amplifier is present in this widget
[1:0]
Rsvd
R
0h
Reserved
Output Amplifier Capabilities Response Format (PID = 12h)
Bit
Bitfield Name
RW
Default
Description
[31]
Mute Capable
R
0
Beep amplifier does not support mute
[30:23]
Rsvd
R
0000h
Reserved
[22:16]
Step Size
R
17h
Gain step size is 6dB
[15]
Rsvd
R
0
Reserved
[14:8]
Num Steps
R
04h
Number of steps in gain range is 5 (0dB to −24dB)
[7]
Rsvd
R
0
Reserved
[6:0]
Offset
R
04h
The step number that 0dB corresponds to is 04h
BEEP GENERATION VERB
Verb ID
Payload [15:0]
Response[31:0]
Get
F0Ah
0000h
Bits [31:0] in the table below
Set
70Ah
Bits [15:0] in the table below
00000000h
Bit
Bitfield Name
RW
Default
Description
[31:8]
Rsvd
R
0000000h
Reserved
[7:0]
Terminal Count
RW
00h
Sets tone divider value. The frequency of the beep tone is given by
f = 48kHz / (4 * Divider):
00h = Beep Generator disabled
01h = 12kHz
02h = 6 kHz
…. ….
FFh = 47.06 Hz
Note: for a beep to be generated, the AFG must be in state D0



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