alc883 Realtek Semiconductor Corporation, alc883 Datasheet - Page 57

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

8.21. Verb – Get Unsolicited Response Control (Verb ID=F08h)
Determines whether a widget is enabled to send an unsolicited response. An HDA codec can use an
unsolicited response to inform software of a real-time event.
8.22. Verb – Set Unsolicited Response Control (Verb ID=708h)
Enable a widget to generate an unsolicited response.
7.1+2 Channel High Definition Audio Codec
Get Command Format
Codec Response for NID=01h (GPIO), 0Ah (S/PDIF-IN), 14h~1Bh (Port)
Codec Response for other NID
Set Command Format
‘EnableUnsol’ in Command Bit[7:0]
Bit [31:28]
Bit [31:28]
CAd=X
CAd=X
31:8
31:0
31:8
Bit
6:4
3:0
Bit
Bit
6:4
3:0
7
7
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Description
Reserved. Read as 0’s
Unsolicited Response is Enabled
0: Disabled
1: Enabled
Reserved. Read as 0’s
Assigned Tag for Unsolicited Response
The tag[3:0] is assigned by software to determine which widget generates unsolicited responses
Description
Not supported (returns 00000000h)
Description
Reserved. Read as 0’s
Enable Unsolicited Response
0: Disable
1: Enable
Reserved. Read as 0’s
Tag for Unsolicited Response
Tag[3:0] is defined by software to assign a 4-bit tag for nodes that are enabled to generate unsolicited
responses
Table 52. Verb – Get Unsolicited Response Control (Verb ID=F08h)
Table 53. Verb – Set Unsolicited Response Control (Verb ID=708h)
Verb ID= F08h
Verb ID=708h
Bit [19:8]
Bit [19:8]
EnableUnsol [7:0]
Payload Bit [7:0]
Payload Bit [7:0]
49
0’s
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Response [31:0]
Response [31:0]
32-bit Response
0’s for all nodes
ALC883 Series
Datasheet
Rev. 1.3