alc888-vc2-gr Realtek Semiconductor Corporation, alc888-vc2-gr Datasheet - Page 50

• Manufacturer Part Number: alc888-vc2-gr
• Description: 7.1+2 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.
7.1+2 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
Node ID=Xh
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 bits index offset in connection list is used to select which input gain 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.
Bit [27:20]
Table 44. Verb – Set Amplifier Gain (Verb ID=3h)
Verb ID=3h
Bit [19:8]
‘Set’ payload [7:0]
Payload Bit [7:0]
42
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
0’s for all nodes
Datasheet
ALC888
Rev. 1.4