alc272 Realtek Semiconductor Corporation, alc272 Datasheet - Page 53

• Manufacturer Part Number: alc272
• Description: 4 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.12. Verb – Set Amplifier Gain (Verb ID=3h)
This verb is used to set amplifier gain/attenuation in each widget.
4 Channel High Definition Audio Codec
Set Command Format
‘Set’ Payload in Command Bit[15:0]
Bit [31:28]
CAd=X
11:8
6:0
Bit
15
14
13
12
7
Description
Set Output Amp.
1: Indicates output amplifier gain will be set
Set Input Amp.
1: Indicates input amplifier gain will be set
Set Left Amp.
1: Indicates left amplifier gain will be set
Set Right Amp.
1: Indicates right amplifier gain will be set
Index Offset (for input amplifiers on Sum widgets and Selector Widgets).
5-bit index offset in connection list is used to select the input gain that will be set on a Sum or a Selector
widget. The index is ignored if the node is not a Sum or a Selector widget, or the ‘Set Input Amp’ bit is not
set.
Mute.
0: Unmute
1: Mute (-∞gain)
Gain[6:0].
A 7-bit step value specifying the amplifier gain
Node ID=Xh
Bit [27:20]
Table 46. Verb – Set Amplifier Gain (Verb ID=3h)
Verb ID=3h
Bit [19:8]
‘Set’ payload [7:0]
Payload Bit [7:0]
45
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
0’s for all nodes
Datasheet
ALC272
Rev. 1.0