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ALC888S-VD Datasheet(PDF) 35 Page - Realtek Semiconductor Corp.

Part No. ALC888S-VD
Description  7.12 CHANNEL HD AUDIO CODEC WITH TWO INDEPENDENT SPDIF OUTPUTS
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Maker  REALTEK [Realtek Semiconductor Corp.]
Homepage  https://www.realtek.com/en/
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 35 page
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ALC888S-VD
Datasheet
7.1+2 Channel HD Audio Codec with Two Independent
SPDIF Outputs
27
Track ID: JATR-2265-11
Rev. 1.2
8. Supported Verbs and Parameters
This section describes the Verbs and Parameters supported by various widgets in the ALC888S-VD. 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 22, for detailed information about supported parameters.
Table 17. Verb – Get Parameters (Verb ID=F00h)
Get Parameter Command Format
Codec Response Format
Bit [31:28]
Bit [27:20]
Bit [19:8]
Payload Bit [7:0]
Response [31:0]
CAd=X
Node ID=00h
Verb ID=F00h
Parameter ID[7:0]
32-bit Response
Note: If the parameter ID is not supported, the returned response is 32 bits of ‘0’.
8.1.1.
Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Table 18. Parameter – Vendor ID (Verb ID=F00h, Parameter ID=00h)
Codec Response Format
Bit
Description
31:16
Vendor ID=10ECh (Realtek’s PCI Vendor ID).
15:0
Device ID=0888h.
Note: The Root Node (NID=00h) supports this parameter.
8.1.2.
Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Table 19. Parameter – Revision ID (Verb ID=F00h, Parameter ID=02h)
Codec Response Format
Bit
Description
31:24
Reserved. Read as 0’s.
23:20
MajRev. The major version number (in decimal) of the HDA Spec to which the ALC888S-VD is fully
compliant. Response=0x1.
19:16
MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC888S-VD is fully
compliant. Response=0x0.
15:8
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.
7:0
Stepping ID. The vendor’s stepping number within the given Revision ID.
Note: The Root Node (NID=00h in the ALC888S-VD) supports this parameter.




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