alc888-vc2-gr Realtek Semiconductor Corporation, alc888-vc2-gr Datasheet - Page 48

• Manufacturer Part Number: alc888-vc2-gr
• Description: 7.1+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.11. Verb – Get Amplifier Gain (Verb ID=Bh)
This verb is used to get gain/attenuation settings from each widget.
7.1+2 Channel High Definition Audio Codec
Get Command Format
‘Get’ Payload in Command Bit[15:0]
Codec Response for 08h (LINE ADC) and 09h (MIX ADC)
Codec Response for NID=0Bh (MIXER Sum Widget)
Bit [31:28]
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
Description
Get Input/Output.
0: Input amplifier gain is requested
Reserved. Read as 0.
Get Left/Right.
0: Right amplifier gain is requested
Reserved. Read as 0’s.
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’: Input Amplifier Mute.
0: Unmute
1: Mute
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].
7-bit step value (0~31) specifying the volume from –16.5B~+30dB in 1.5dB steps.
Bit-15 is 1 in ‘Get Amplifier Gain’: Read as 0’s (No Output Amplifier Mute).
Description
0’s.
Bit-15 is 0 in ‘Get Amplifier Gain’: Input Amplifier Mute.
0: Unmute
1: Mute (Default for all Index)
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].
7-bit step value (0~31) specifying the volume from –34.5dB~+12dB in 1.5dB steps.
Bit-15 is 1 in ‘Get Amplifier Gain’: Read as 0’s (No Output Amplifier Mute).
Bit [27:20]
Table 43. Verb – Get Amplifier Gain (Verb ID=Bh)
Verb ID=Bh
Bit [19:16]
‘Get’ payload [15:0]
Payload Bit [15:0]
40
1: Output amplifier gain is requested
1: Left amplifier gain is requested
Bit[7:0] are responsible for ‘Get’
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
Datasheet
ALC888
Rev. 1.4