WM8860 datasheet(129/184 Pages) WOLFSON

129 / 184 page

Pre-Production

WM8860

PP, April 2011, Rev 3.2

129

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

12h

13h

14h

15h

16h

17h

PORT-B PIN COMPLEX WIDGET (NID = 0DH)

AMPLIFIER GAIN/MUTE VERB

Verb ID

Payload [15:0]

Response[31:0]

Get

2000h

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

applies to the left channel only

Get

0000h

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

Mute not supported

[6:0]

Amplifier Gain

00h

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

The actual gain applied is determined by the Input Amplifier Capabilities

Parameter in the AFG (NID = 01h), and is shown below for convenience:

00h = 0dB

01h = +10dB

02h = +20dB

03h = +30dB

Set Table:

Bit

Bitfield Name

Default

Description

[15]

Set Output Amp

Not applicable to this widget

[14]

Set Input Amp

Indicates that the programming refers to the input amplifier on 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

Mute not supported

[6:0]

Gain

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

details of actual gain values

Note: Port-B amplifier implements Mic-Boost. The gain setting is always

applied to both left and right channels when either (or both) the Set Left

Amp or Set Right Amp registers are set. Dedicated boost settings for

each channel are not supported.

WM8860 Datasheet(PDF) 129 Page - Wolfson Microelectronics plc

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