alc861 Realtek Semiconductor Corporation, alc861 Datasheet - Page 27

• Manufacturer Part Number: alc861
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.
This section describes the Verbs and Parameters supported by various widgets in the ALC861. 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 18, for detailed information about supported parameters.
8.1.1.
8.1.2.
This parameter was removed from the HDA 1.0 specification. The ALC861 will respond with 0s to this
command.
7.1 Channel High Definition Audio Codec
Get Parameter Command Format
Codec Response Format
Note: The Root Node (NID=00h) supports this parameter.
Bit [31:28]
Note: If the parameter ID is not supported, the returned response is 32 bits of ‘0’.
CAd=X
31:16
15:0
Bit
Supported Verbs and Parameters
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Parameter – Subsystem ID (Verb ID=F00h, Parameter ID=01h)
Node ID=00h
Bit [27:20]
Vendor ID=10ECh (Realtek’s PCI vendor ID)
Device ID=0861h
Description
Table 16. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Verb ID=F00h
Table 15. Verb – Get Parameters (Verb ID=F00h)
Bit [19:8]
Parameter ID[7:0]
Payload Bit [7:0]
19
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
32-bit Response
Datasheet
ALC861
Rev. 1.3