alc880 Realtek Semiconductor Corporation, alc880 Datasheet - Page 41

• Manufacturer Part Number: alc880
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.1.17. Parameter – Volume Knob Capabilities (Verb ID=F00h,
8.2. Verb – Get Connection Select Control (Verb ID=F01h)
7.1 Channel High Definition Audio Codec
Codec Response Format for NID=21h (Volume Control Knob)
Get Command Format
Codec Response for NID=07h (MIC ADC)
Codec Response for NID=08h (LINE ADC)
Bit [31:28]
CAd=X
31:8
31:8
31:8
6:0
7:0
7:0
Bit
Bit
Bit
7
Table 34. Parameter – Volume Knob Capabilities (Verb ID=F00h, Parameter ID=13h)
Parameter ID=13h)
Node ID=Xh
Bit [27:20]
Reserved. Read as 0’s
Description
Delta
0: Software cannot modify the Volume Control Knob volume
1: Software can write a base volume to the Volume Control Knob
NumSteps
The number of steps in the range of the Volume Control Knob
Description
0’s
Connection Index currently Set (Default value is 00h)
00h: Pin complex - MIC1
01h: Pin complex - MIC2
02h: Pin complex - LINE1
03h: Pin complex - LINE2
04h: Pin complex - Analog CD-IN
05h: Pin complex - FRONT OUT
06h: Pin complex - SURR OUT
Other: Reserved
Description
0’s
Connection Index currently Set (Default value is 02h)
00h: Pin complex - MIC1
01h: Pin complex - MIC2
02h: Pin complex - LINE1
03h: Pin complex - LINE2
04h: Pin complex - Analog CD-IN
05h: Pin complex - FRONT OUT
06h: Pin complex - SURR OUT
Other: Reserved
Table 35. Verb – Get Connection Select Control (Verb ID=F01h)
Verb ID=F01h
Bit [19:8]
Payload Bit [7:0]
31
0’s
Track ID: JATR-1076-21
Bit[7:0] are Connection Index
Codec Response Format
Response [31:0]
ALC880 Series
Datasheet
Rev. 1.4