alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 40

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.1.15.
8.1.16.
2+2 Channel High Definition Audio Codec
Codec Response Format
Codec Response Format for NID=21h (Volume Control Knob)
Note: The ALC268 does not support volume control knob.
29:24
23:16
15:8
31:8
7:0
6:0
Bit
Bit
31
30
7
Table 33. Parameter – Volume Knob Capabilities (Verb ID=F00h, Parameter ID=13h)
Parameter – GPIO Capabilities
(Verb ID=F00h, Parameter ID=11h)
Parameter – Volume Knob Capabilities
(Verb ID=F00h, Parameter ID=13h)
Description
GPIWake=0.
The ALC268 does not support GPIO wake up function.
GPIUnsol=1.
The ALC268 supports GPIO unsolicited response.
Reserved. Read as 0’s.
NumGPIs=00h.
No GPI pin is supported.
NumGPOs=00h.
No GPO pin is supported.
NumGPIOs=04h.
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.
Table 32. Parameter – GPIO Capabilities (Verb ID=F00h, Parameter ID=11h)
32
Track ID: JATR-1076-21
ALC268 Series
Datasheet
Rev. 1.3