92hdw74c2 Integrated Device Technology, 92hdw74c2 Datasheet - Page 42

• Manufacturer Part Number: 92hdw74c2
• Description: Six Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

SIX CHANNEL HD AUDIO CODEC
6. WIDGET INFORMATION
92HDW74C2
SIX CHANNEL HD AUDIO CODEC
6.1.
Valid (Valid = 1)
Root Node (NID = 00)
6.1.1.
Bits [39:32]
Bits [39:32]
Valid (Valid = 1)
Reserved
Reserved
Bit [35]
Bit [35]
There are two types of responses: Solicited and Unsolicited. Solicited responses are provided as a
direct response to an issued command and will be provided in the frame immediately following the
command. Unsolicited responses are provided by the CODEC independent of any command. Unso-
licited responses are the result of CODEC events such as a jack insertion detection. The formats for
Solicited Responses and Unsolicited Responses are shown in the tables below. The “Tag” field in
bits [31:28] of the Unsolicited Response identify the event.
)
Root VendorID
Get
CODEC Address
CODEC Address
Bits [31:28]
Bits [31:28]
Table 18. Command Format for Verb with 12-bit Identifier
UnSol = 0
UnSol = 1
Table 17. Command Format for Verb with 4-bit Identifier
Bit [34]
Bit [34]
Table 20. Unsolicited Response Format
Table 19. Solicited Response Format
F00
BITS [27:20]
BITS [27:20]
NID
NID
Verb ID
BITS [33:32]
BITS [33:32]
Reserved
Reserved
42
Verb ID (4-bit)
BITS[19:16]
00
BITS[31:28]
Verb ID (12-bit)
BITS[19:8]
Tag
Payload
92HDW74C2
Payload Data (16-bit)
BITS[31:0]
Response
BITS [15:0]
See bitfield table.
BITS [27:0]
Response
Payload Data (8-bit)
Response
BITS [7:0]
PC AUDIO
V 1.0 03/08