alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 62
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alc885-gr
Manufacturer Part Number
alc885-gr
Description
7.1+2 Channel High-performance Hda Codec With Content Protection
Manufacturer
Realtek Semiconductor Corporation
Datasheet
1.ALC885-GR.pdf
(98 pages)
- Current page: 62 of 98
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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-Performance HDA Codec
With Content Protection
Set Command Format
Bit [31:28]
‘Set’ Payload in Command Bit[15:0]
CAd=X
11:8
6:0
Bit
15
14
13
12
7
Node ID=Xh
Bit [27:20]
Set Left Amp
Description
Set Output Amp
‘1’ indicates output amplifier gain will be set
Set Input Amp
‘1’ indicates input amplifier gain will be set
‘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
Table 55. Verb – Set Amplifier Gain (Verb ID=3h)
Verb ID=3h
Bit [19:8]
‘Set’ payload [7:0]
Payload Bit [7:0]
54
Codec Response Format
Response [31:0]
0’s for all nodes
ALC885 Series
Datasheet
Rev. 1.1
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