STAC9250 Datasheet, PDF (25/137 Pages) Integrated Device Technology – TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
PC AUDIO
Bit
[31:0]
[0]
Table 11. AFG Reset Command Response Format
Bitfield Name
RW
Reset
Description
Response
R
0x0
Reserved. Overlaps Execute.
Execute
Function Reset. Function Group reset is
executed when the Set verb 7FF is written
with 8-bit payload of 00h. The CODEC
should issue a response to acknowledge
W
0x0
receipt of the verb, and then reset the
affected Function Group and all associated
widgets to their power-on reset values.
Some controls such as Configuration
Default controls should not be reset.
Overlaps Response.
5.5.2. AFG NodeInfo
Get
Table 12. AFG NodeInfo Command Verb Format
Verb ID
Payload
F00
04
Response
See bitfield table
Bit
[31:24]
[23:16]
[15:8]
[7:0]
Table 13. AFG NodeInfo Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
StartNID
R
0x02
Starting node number for function group
subordinate nodes.
Rsvd1
R
0x0
Reserved
TotalNodes
Total number of nodes.
R
0x14
13h for STAC9250
14h for STAC9251
IDT™
25
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706