ALC892 datasheet(61/90 Pages) REALTEK

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ALC892

Datasheet

7.1+2 Channel HD Audio Codec with Content Protection

Track ID: JATR-2265-11

Rev. 1.3

8.23. Verb – Get Pin Sense (Verb ID=F09h)

Returns the Presence Detect status and the impedance of a device attached to the pin.

Table 54. Verb – Get Pin Sense (Verb ID=F09h)

Get Command Format

Codec Response Format

Bit [31:28]

Bit [27:20]

Bit [19:8]

Payload Bit [7:0]

Response [31:0]

CAd=X

Node ID=Xh

Verb ID= F09h

0’s

32-bit Response

Codec Response for NID = 14h~1Bh, 11h, 1Eh, 1Fh

Bit

Description

Presence Detect Status.

0: No device is attached to the pin

1: Device is attached to the pin

30:0

Measured Impedance.

The ALC892 does not support hardware impedance detection. This field is read as 0s.

Codec Response for other NID

Bit

Description

31:0

Not Supported (Returns 00000000h).

8.24. Verb – Execute Pin Sense (Verb ID=709h)

Table 55. Verb – Execute Pin Sense (Verb ID=709h)

Command Format

Codec Response Format

Bit [31:28]

Bit [27:20]

Bit [19:8]

Payload Bit [7:0]

Response [31:0]

CAd=X

Node ID=Xh

Verb ID= 709h

Right Channel[0]

0’s for All Nodes

‘Payload’ in Command Bit[7:0]

Bit

Description

7:1

Reserved. Read as 0’s.

Right (Ring) Channel Select.

0: Sense Left channel (Tip)

1: Sense Right channel (Ring)

The ALC892 does not support hardware impedance sensing and will ignore this control.

ALC892 Datasheet(PDF) 61 Page - Realtek Semiconductor Corp.

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