alc883 Realtek Semiconductor Corporation, alc883 Datasheet - Page 39

• Manufacturer Part Number: alc883
• Description: 7.1+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.1.15. Parameter – GPIO Capabilities (Verb ID=F00h,
8.1.16. Parameter – Volume Knob Capabilities (Verb ID=F00h,
7.1+2 Channel High Definition Audio Codec
Codec Response Format
Codec Response Format for NID=21h (Volume Control Knob)
Note: In devices without volume knob support, the ALC883 will respond with 0s to this parameter.
29:24
23:16
15:8
31:8
Bit
7:0
Bit
6:0
31
30
7
Table 33. Parameter – Volume Knob Capabilities (Verb ID=F00h, Parameter ID=13h)
Parameter ID=11h)
Parameter ID=13h)
Table 32. Parameter – GPIO Capabilities (Verb ID=F00h, Parameter ID=11h)
Description
GPIWake=0
The ALC883 series does not support GPIO wake up function
GPIUnsol=1
The ALC883 series supports GPIO unsolicited response
Reserved. Read as 0’s
NumGPIs=00h
No GPI pin is supported
NumGPOs=00h
No GPO pin is supported
NumGPIOs=02h
Two GPIO pins are supported
Description
Reserved. Read as 0’s
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
31
Track ID: JATR-1076-21
ALC883 Series
Datasheet
Rev. 1.3