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ALC892 Datasheet(PDF) 61 Page - Realtek Semiconductor Corp.

Part # ALC892
Description  7.12 CHANNEL HD AUDIO CODEC WITH CONTENT PROTECTION
PDF  89 Pages
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Manufacturer  REALTEK [Realtek Semiconductor Corp.]
Direct Link  https://www.realtek.com/en/
Logo REALTEK - Realtek Semiconductor Corp.

ALC892 Datasheet(HTML) 61 Page - Realtek Semiconductor Corp.

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ALC892
Datasheet
7.1+2 Channel HD Audio Codec with Content Protection
53
Track ID: JATR-2265-11
Rev. 1.1
8.25. Verb – Get Volume Knob Widget (Verb ID=F0Fh)
Table 56. Verb – Get Volume Knob (Verb ID=F0Fh)
Get Command Format
Codec Response Format
Bit [31:28]
Bit [27:20]
Bit [19:8]
Payload Bit [7:0]
Response [31:0]
CAd=X
Node ID=21h
Verb ID= F0Fh
0’s
Bit[31:8]=0s, Bit[7:0] is Volume
Codec Response for NID = 21h (Volume Knob Widget)
Bit
Description
31:8
Reserved.
7
Direct.
0: The volume generated by external HW volume control will be sent by unsolicited response. Software is
responsible for programming the amplifier appropriately
1: The volume generated by external HW volume control will directly affect the volume of the amplifier.
6:0
Volume in Steps.
Note: The ALC892 does not support Volume Knob Widget and will ignore this verb and respond with 0’s.
8.26. Verb – Set Volume Knob Widget (Verb ID=70Fh)
Table 57. Verb – Set Volume Knob (Verb ID=70Fh)
Set Command Format
Codec Response Format
Bit [31:28]
Bit [27:20]
Bit [19:8]
Payload Bit [7:0]
Response [31:0]
CAd=X
Node ID=21h
Verb ID= 70Fh
Bit[7] is ‘Direct’ Control
0’s
‘Payload’ in Command Bit[7:0]
Bit
Description
31:8
Reserved.
7
Direct.
0: The volume generated by external HW volume control will be sent by unsolicited response. Software is
responsible for programming the amplifier appropriately
1: The volume generated by external HW volume control will directly affect the volume of the amplifier.
6:0
Reserved.
Note: The ALC892 does not support Volume Knob Widget and will ignore this verb and respond with 0’s.



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