alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 74
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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: 74 of 98
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8.26. Verb – Set Volume Knob Widget (Verb ID=70Fh)
8.27. Verb – Get Configuration Default (Verb ID=F1Ch)
Reads the 32-bit sticky register for each Pin Widget configured by software.
7.1+2 Channel High-Performance HDA Codec
With Content Protection
Set Command Format
Bit [31:28]
‘Payload’ in Command Bit[7:0]
Get Command Format
Bit [31:28]
Codec Response for NID=14h~1Bh, 1Ch, 1Dh, 1Eh, and 1Fh
Note: The 32-bit registers for each Pin Widget are sticky and will not be reset by a LINK Reset or Codec Reset (Function
CAd=X
CAd=X
31:0
31:8
Bit
6:0
Bit
7
Reset Verb).
Node ID=21h
Node ID=Xh
Bit [27:20]
Bit [27:20]
Reserved
Direct
32-bit configuration information for each pin widget
Description
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.
The ALC885 does not support ‘Direct’ mode and will respond with 0s for this bit.
Reserved
Description
Table 69. Verb – Get Configuration Default (Verb ID=F1Ch)
Table 68. Verb – Set Volume Knob (Verb ID=70Fh)
Verb ID= F1Ch
Verb ID= 70Fh
Bit [19:8]
Bit [19:8]
Bit[7] is ‘Direct’ control
Payload Bit [7:0]
Payload Bit [7:0]
66
0’s
Codec Response Format
Codec Response Format
Response [31:0]
Response [31:0]
32-bit Response
0’s
ALC885 Series
Datasheet
Rev. 1.1
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