ALC665 datasheet(36/89 Pages) REALTEK

36 / 89 page

ALC665

Datasheet

5.1-Channel High Definition Audio Codec

Track ID: JATR-2265-11

Rev. 1.0

8. Supported Verbs and Parameters

This section describes the Verbs and Parameters supported by various widgets in the ALC665. If a verb is

not supported by the addressed widget, it will respond with 32 bits of ‘0’.

8.1. Verb – Get Parameters (Verb ID=F00h)

The ‘Get Parameters’ verb is used to get system information and the function capabilities of the HDA

codec. All the parameters are read-only. There are a total of 15 ID parameters defined for each widget.

Some parameters are supported only in a specific widget. Refer to section 7.4.1 Command Verb Format,

page 20, to get detailed information about supported parameters.

Table 20. Verb – Get Parameters (Verb ID=F00h)

Get Parameter 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=00h

Verb ID=F00h

Parameter ID[7:0]

32-bit Response

Note: If the parameter ID is not supported, the returned response is 32 bits of ‘0’.

8.1.1.

Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)

Table 21. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)

Codec Response Format

Bit

Description

31:16

Vendor ID=10ECh (Realtek’s PCI Vendor ID)

15:0

Device ID=0663h

Note: The Root Node (NID=00h) supports this parameter.

8.1.2.

Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)

Table 22. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)

Codec Response Format

Bit

Description

31:24

Reserved. Read as 0’s

23:20

MajRev=1h. The major version number (in decimal) of the HDA Specification

19:16

MinRev=0h. The minor version number (in decimal) of the HDA Specification

15:8

Revision ID. The vendor’s revision number

Note: 00h indicates ALC665 silicon.

7:0

Stepping ID. The vendor’s stepping number within the given Revision ID

Note: The Root Node (NID=00h) supports this parameter.

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