alc888-vc2-gr Realtek Semiconductor Corporation, alc888-vc2-gr Datasheet - Page 33

• Manufacturer Part Number: alc888-vc2-gr
• 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 ALC888. If a verb is
not supported by the addressed widget, it will respond with 32 bits of ‘0’.
8.1.
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 22, 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
Note: If the parameter ID is not supported, the returned response is 32 bits of ‘0’.
Codec Response Format
Note: The Root Node (NID=00h) supports this parameter.
Codec Response Format
Note: The Root Node (NID=00h in the ALC888) supports this parameter.
Bit [31:28]
CAd=X
31:16
31:24
23:20
19:16
15:0
15:8
7:0
Bit
Bit
Supported Verbs and Parameters
Verb – Get Parameters (Verb ID=F00h)
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Description
Vendor ID=10ECh (Realtek’s PCI vendor ID)
Device ID=0888h
Description
Reserved. Read as 0’s
MajRev. The major version number (in decimal) of the HDA Spec to which the ALC888 is fully
compliant
MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC888 is fully
compliant
Revision ID. The vendor’s revision number
00h is for ALC888 version A, 01h is for ALC888 version B, 02h is for ALC888-VC, etc.
Stepping ID. The vendor’s stepping number within the given Revision ID
Node ID=00h
Bit [27:20]
Table 19. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Table 18. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Table 17. Verb – Get Parameters (Verb ID=F00h)
Verb ID=F00h
Bit [19:8]
Parameter ID[7:0]
Payload Bit [7:0]
25
Track ID: JATR-1076-21
Codec Response Format
Response [31:0]
32-bit Response
Datasheet
ALC888
Rev. 1.4