92HD71B7 Datasheet, PDF (37/216 Pages) Integrated Device Technology – 4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER

92HD71B7
4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER
PC AUDIO
7. WIDGET INFORMATION
Bits [39:32]
Reserved
Table 16. Command Format for Verb with 4-bit Identifier
Bits [31:28]
CODEC Address
BITS [27:20]
NID
BITS[19:16]
Verb ID (4-bit)
BITS [15:0]
Payload Data (16-bit)
Bits [39:32]
Reserved
Table 17. Command Format for Verb with 12-bit Identifier
Bits [31:28]
CODEC Address
BITS [27:20]
NID
BITS[19:8]
Verb ID (12-bit)
BITS [7:0]
Payload Data (8-bit)
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 Tables 18 and 19 respectively. The
“Tag” field in bits [31:28] of the Unsolicited Response identify the event.
Bit [35]
Valid (Valid = 1)
Table 18. Solicited Response Format
Bit [34]
UnSol = 0
BITS [33:32]
Reserved
BITS[31:0]
Response
Bit [35]
Valid (Valid = 1)
Table 19. Unsolicited Response Format
Bit [34]
UnSol = 1
BITS [33:32]
Reserved
BITS[31:28]
Tag
BITS [27:0]
Response
IDT™ CONFIDENTIAL AND PROPRIETARY
37
4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER
92HD71B7
V 0.9 07/07