alc888-vc2-gr Realtek Semiconductor Corporation, alc888-vc2-gr Datasheet - Page 58

• Manufacturer Part Number: alc888-vc2-gr
• 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
Codec Response for NID = 14h~1Bh, 1Eh, 1Fh
Codec Response for other NID
Command Format
‘Payload’ in Command Bit[7:0]
Bit [31:28]
Bit [31:28]
CAd=X
CAd=X
30:0
31:0
7:1
Bit
Bit
Bit
31
0
Node ID=Xh
Description
Presence Detect Status.
0: No device is attached to the pin
1: Device is attached to the pin
Measured Impedance.
The ALC888 does not support hardware impedance detection. This field is read as 0s.
Description
Not Supported (returns 00000000h).
Node ID=Xh
Description
Reserved. Read as 0’s.
Right (Ring) Channel Select.
0: Sense Left channel (Tip)
1: Sense Right channel (Ring)
The ALC888 does not support hardware impedance sensing and will ignore this control.
Bit [27:20]
Bit [27:20]
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
Datasheet
ALC888
Rev. 1.4