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ALC892

7.1+2 CHANNEL HD AUDIO CODEC WITH CONTENT PROTECTION

Realtek Semiconductor 

ALC892

Datasheet

8.1.3. Parameter – Subordinate Node Count

(Verb ID=F00h, Parameter ID=04h)

For the root node, the Subordinate Node Count provides information about audio function group nodes

associated with the root node.

For function group nodes, it provides the total number of widgets associated with this function node.

Table 19. Parameter – Subordinate Node Count (Verb ID=F00h, Parameter ID=04h)

Codec Response Format

Bit Description

31:24 Reserved. Read as 0’s.

23:16 Starting Node Number.

The starting node number in the sequential widgets.

15:8 Reserved. Read as 0’s.

7:0 Total Number of Nodes.

For a root node, the total number of function groups in the root node.

For a function group, the total number of widget nodes in the function group.

Root Node

Audio Function

Others

Description

Bits Æ

NID=00h

NID=01h

Reserved

Starting Node Reserved

Bit [31:24]

Bit [23:16] Bit [15:8]

-

01h

-

-

02h

-

Not Supported (Returns 00000000h)

Total Fun/Widgets

Bit [7:0]

01h

25h

8.1.4. Parameter – Function Group Type

(Verb ID=F00h, Parameter ID=05h)

Table 20. Parameter – Function Group Type (Verb ID=F00h, Parameter ID=05h)

Codec Response Format

Bit Description

31:9 Reserved. Read as 0’s.

8

UnSol Capable. Read as 1.

0: Unsolicited response is not supported by this function group

1: Unsolicited response is supported by this function group

7:0 Function Group Type. Read as 01h.

00h: Reserved

01h: Audio Function

02h: Modem Function

03h~7Fh: Reserved

80h~FFh: Vendor Defined Function

Note: The Audio Function Group (NID=01h) supports this parameter.

7.1+2 Channel HD Audio Codec with Content Protection 27

Track ID: JATR-2265-11 Rev. 1.3

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