alc861 Realtek Semiconductor Corporation, alc861 Datasheet - Page 43

• Manufacturer Part Number: alc861
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.5. Verb – Get Amplifier Gain (Verb ID=Bh)
This verb is used to get gain/attenuation settings from each widget.
7.1 Channel High Definition Audio Codec
Get Command Format
Bit [31:28]
‘Get’ Payload in Command Bit[15:0]
Codec Response for NID=03h, 04h, 05h, 06h (DAC) and 07h (S/PDIF-OUT Converter)
Codec Response for NID=08h (ADC)
CAd=X
12:4
31:8
31:8
3:0
6:0
6:0
Bit
Bit
Bit
15
14
13
7
7
Node ID=Xh
Bit [27:20]
Reserved. Read as 0
Reserved. Read as 0’s
Read as 0’s (No volume control for DAC and S/PDIF-OUT converter)
Description
Get Input/Output
0: Input amplifier gain is requested
1: Output amplifier gain is requested
Get Left/Right
0: Right amplifier gain is requested
1: Left amplifier gain is requested
Index[3:0] for Input Source
Select amplifier for this converter. If a widget has no multiple input sources, the index will be ignored.
Description
0’s
Bit-15 is 0 in ‘Get Amplifier Gain’: Read as 0 (No Output Amplifier Mute)
Bit-15 is 1 in ‘Get Amplifier Gain’: Output Amplifier Mute, 0: Unmute, 1: Mute (Default)
Description
0’s
Bit-15 is 0 in ‘Get Amplifier Gain’: Input Amplifier Mute, 0: Unmute 1: Mute (Default ).
Bit-15 is 1 in ‘Get Amplifier Gain’: Read as 0 (No Output Amplifier Mute)
Bit-15 is 0 in ‘Get Amplifier Gain’: Input Amplifier Gain [6:0]
Bit-15 is 1 in ‘Get Amplifier Gain’: Read as 0’s (No Output Amplifier Mute)
Table 32. Verb – Get Amplifier Gain (Verb ID=Bh)
Verb ID=Bh
Bit [19:16]
‘Get’ payload [15:0]
Payload Bit [15:0]
35
Track ID: JATR-1076-21
Bit[7:0] are responsible for ‘Get’
Codec Response Format
Response [31:0]
Datasheet
ALC861
Rev. 1.3