STAC9250 Datasheet, PDF (30/137 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]
[30]
[29:24]
[23:16]
[15:8]
[7:0]
Table 25. AFG GPIOCap Command Response Format
Bitfield Name
RW
Reset
Description
GPIWake
Wake capability. Assuming the Wake Enable
Mask controls are enabled, GPIOs configured
R
0x1
as inputs can cause a wake (generate a Status
Change event on the link) when there is a
change in level on the pin.
GPIUnsol
Unsolicited Response capability. Assuming the
Unsolicited Enable Mask controls are enabled,
R
0x1
GPIOs configured as inputs can generate an
Unsolicited Response on the link when there is
a change in level on the pin.
Rsvd
R
0x0
Reserved
NumGPIs
R
0x00
Number of GPI pins supported
NumGPOs
R
0x00
Number of GPO pins supported
NumGPIOs
R
0x04
Number of GPIO pins supported
5.5.9. AFG OutAmpCap
Get
Table 26. AFG OutAmpCap Command Verb Format
Verb ID
Payload
F00
12
Response
See bitfield table
Bit
[31]
[30:23]
[22:16]
[15]
[14:8]
Table 27. AFG OutAmpCap Command Response Format
Bitfield Name
RW
Reset
Description
Mute
R
0x1
Amplifier is capable of muting
Rsvd3
R
0x0
Reserved
StepSize
R
0x05
Size of each step in the gain range = 1.5dB
Rsvd2
R
0x0
Reserved
NumSteps
R
0x1F
Number of steps in the gain range = 31
(32 values, -46.5dB to +0dB)
IDT™
30
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
V 1.1 102706