alc882 Realtek Semiconductor Corporation, alc882 Datasheet - Page 60

• Manufacturer Part Number: alc882
• Description: 7.1+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.23. Verb – Get Pin Sense (Verb ID=F09h)
Returns the Presence Detect status and the impedance of a device attached to the pin.
8.24. Verb – Execute Pin Sense (Verb ID=709h)
7.1+2 Channel High Definition Audio Codec
Get Command Format
Bit [31:28]
Codec Response for NID = 14h~1Bh, 1Eh, 1Fh
Codec Response for other NID
Command Format
Bit [31:28]
‘Payload’ in Command Bit[7:0]
CAd=X
CAd=X
30:0
31:0
7:1
Bit
Bit
Bit
31
0
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Presence Detect Status
Measured Impedance
Reserved. Read as 0’s
Description
0: No device is attached to the pin
1: Device is attached to the pin
0x7FFFFFFF or 0xFFFFFFFF: Valid sense is not available or busy
Description
Not supported (returns 00000000h)
Description
Right (Ring) Channel Select
0: Sense Left channel (Tip)
1: Sense Right channel (Ring)
Table 55. Verb – Execute Pin Sense (Verb ID=709h)
Verb ID= F09h
Verb ID= 709h
Table 54. Verb – Get Pin Sense (Verb ID=F09h)
Bit [19:8]
Bit [19:8]
Payload Bit [7:0]
Payload Bit [7:0]
Right Channel[0]
50
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
ALC882 Series
Datasheet
Rev. 1.5