alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 34

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alc885-gr

Manufacturer Part Number
alc885-gr
Description
7.1+2 Channel High-performance Hda Codec With Content Protection
Manufacturer
Realtek Semiconductor Corporation
Datasheet

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8.
This section describes the Verbs and Parameters supported by various widgets in the ALC885. 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 21, for detailed information about supported parameters.
8.1.1.
8.1.2.
7.1+2 Channel High-Performance HDA Codec
With Content Protection
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 ALC885) 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=0885h
Reserved. Read as 0’s
Description
Description
MajRev. The major version number (in decimal) of the HDA Spec to which the ALC885 is fully
compliant. Response=0x1
MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC885 is fully
compliant. Response=0x0
Revision ID. The vendor’s revision number
00h is for the first silicon version (A version), 01h is for the second version (B version), etc.
Stepping ID. The vendor’s stepping number within the given Revision ID
Table 21. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Table 20. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Verb ID=F00h
Table 19. Verb – Get Parameters (Verb ID=F00h)
Bit [19:8]
Parameter ID[7:0]
Payload Bit [7:0]
26
Codec Response Format
Response [31:0]
32-bit Response
ALC885 Series
Datasheet
Rev. 1.1