WM8860 datasheet(119/184 Pages) WOLFSON

119 / 184 page

Pre-Production

WM8860

PP, April 2011, Rev 3.2

119

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

12h

13h

14h

15h

16h

17h

PGA2 SELECTOR WIDGET (NID = 0BH)

AMPLIFIER GAIN/MUTE VERB

Verb ID

Payload [15:0]

Response[31:0]

Get

A000h

Bits [31:0] in the response table below –

applies to the left channel only

Get

8000h

Bits [31:0] in the response table below –

applies to the right channel only

Set

Bits [15:0] in the set table below

00000000h

Response Table:

Bit

Bitfield Name

Default

Description

[31:8]

Rsvd

000000h

Reserved

[7]

Amplifier Mute

Shows the amplifier mute status of the selected channel:

0 = Normal

1 = Muted

[6:0]

Amplifier Gain

18h

Shows the amplifier gain setting (step number) for the selected channel.

The actual gain applied is determined by the Output Amplifier

Capabilities Parameter, and is shown below for convenience:

00h = −12dB

01h = −11.5dB

… 0.5dB steps

2Fh = +11.5dB

30h = +12dB

Set Table:

Bit

Bitfield Name

Default

Description

[15]

Set Output Amp

Indicates that the programming refers to the output amplifier on this

widget

[14]

Set Input Amp

Not applicable to this widget

[13]

Set Left Amp

0 = Left channel amplifier does not accept the values in Mute or Gain

fields

1 = Left channel amplifier does accept the values in the Mute and Gain

fields

[12]

Set Right Amp

0 = Right channel amplifier does not accept the values in Mute or Gain

fields

1 = Right channel amplifier does accept the values in the Mute and Gain

fields

[11:8]

Index

Not applicable to this widget

[7]

Mute

0 = Normal operation

1 = Mute

Note: When mute is applied to a channel, the data value is overwritten

with all zeros.

[6:0]

Gain

18h

Step number of the gain – see Amplifier Gain in response table above for

details of actual gain values

WM8860 Datasheet(PDF) 119 Page - Wolfson Microelectronics plc

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