alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 33

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.
This chapter describes the Verbs and Parameters supported by various widgets in the ALC268. 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. Refer to section 7.4.1 Command Verb Format, page 23, to get
detailed information about supported parameters.
8.1.1.
8.1.2.
2+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 ALC268) supports this parameter.
For example the Revision ID=00h and Stepping ID=01h stand for the silicon is A1 version.
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
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=0268h.
Description
Reserved. Read as 0’s.
MajRev. The major version number (in decimal) of the HDA Spec to which the ALC268 is fully compliant.
MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC268 is fully
compliant.
Revision ID. The vendor’s revision number.
00h is for the first silicon version A, 01h is for the second version B, 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)
Verb ID=F00h
Table 17. Verb – Get Parameters (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
ALC268 Series
Datasheet
Rev. 1.3