alc885-gr Realtek Semiconductor Corporation, alc885-gr Datasheet - Page 29
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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
1.ALC885-GR.pdf
(98 pages)
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ALC885 Series
Datasheet
7.4. Verb and Response Format
7.4.1.
Command Verb Format
There are two types of verbs; one with 4-bit identifiers (4-bit verbs) and 16-bits of data, the other with
12-bit identifiers (12-bit verbs) and 8-bits of data. Table 10 shows the 4-bit verb structure of a command
stream sent from the controller to operate the codec. Table 11 is the 12-bit verb structure that gets and
controls parameters in the codec.
Table 10. 40-Bit Commands in 4-Bit Verb Format
Bit [39:32]
Bit [31:28]
Bit [27:20]
Bit [19:16]
Bit [15:0]
Reserved
Codec Address
Node ID
Verb ID
Payload
Table 11. 40-Bit Commands in 12-Bit Verb Format
Bit [39:32]
Bit [31:28]
Bit [27:20]
Bit [19:8]
Bit [7:0]
Reserved
Codec Address
Node ID
Verb ID
Payload
7.1+2 Channel High-Performance HDA Codec
21
Rev. 1.1
With Content Protection
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