alc882 Realtek Semiconductor Corporation, alc882 Datasheet - Page 33

• Manufacturer Part Number: alc882
• Description: 7.1+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.
This section describes the Verbs and Parameters supported by various widgets in the ALC882 series. 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.
8.1.1.
8.1.2.
7.1+2 Channel High Definition Audio Codec
Get Parameter Command Format
Codec Response Format
Note: The Root Node (NID=00h) supports this parameter.
Codec Response Format
Note: The Root Node (NID=00h in the ALC882 series) 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
31:24
23:20
19:16
15:0
15:8
7:0
Bit
Bit
Supported Verbs and Parameters
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Node ID=00h
Bit [27:20]
Vendor ID=10ECh (Realtek’s PCI vendor ID)
Device ID=0882h
Reserved. Read as 0’s
Description
Description
MajRev. The major version number (in decimal) of the HDA Spec to which the ALC882 series is fully
compliant
MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC882 series is fully
compliant
Revision ID. The vendor’s revision number.
00h is for the first silicon version, 01h is for the second version, etc.
Stepping ID. The vendor’s stepping number within the given Revision ID
Table 19. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Table 18. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Verb ID=F00h
Table 17. Verb – Get Parameters (Verb ID=F00h)
Bit [19:8]
Parameter ID[7:0]
Payload Bit [7:0]
23
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
32-bit Response
ALC882 Series
Datasheet
Rev. 1.5