STAC9250 datasheet(35/137 Pages) IDT

35 / 137 page

STAC9250/9251

TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

PC AUDIO

IDT™

STAC9250/9251

V 1.1 102706

TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES

5.5.15.

AFG GPIOWake

5.5.16.

AFG GPIOUnsolEn

Table 38. AFG GPIOWake Command Verb Format

Verb ID

Payload

Response

Get

F18

See bitfield table

Set1

718

See bits [7:0] of bitfield table

0000_0000h

Table 39. AFG GPIOWake Command Response Format

Bit

Bitfield Name

Reset

Description

[31:4]

Rsvd

0x0

Reserved

[3]

En3

0x0

Wake enable for GPIO3:

0 = wake-up event is disabled;

1 = when HD Audio link is powered down (RST# is

asserted), a wake-up event will trigger a Status Change

Request event on the link.

[2]

En2

0x0

Wake enable for GPIO2:

0 = wake-up event is disabled;

1 = when HD Audio link is powered down (RST# is

asserted), a wake-up event will trigger a Status Change

Request event on the link.

[1]

En1

0x0

Wake enable for GPIO1:

0 = wake-up event is disabled;

1 = when HD Audio link is powered down (RST# is

asserted), a wake-up event will trigger a Status Change

Request event on the link.

[0]

En0

0x0

Wake enable for GPIO0:

0 = wake-up event is disabled;

1 = when HD Audio link is powered down (RST# is

asserted), a wake-up event will trigger a Status Change

Request event on the link.

Table 40. AFG GPIOUnsolEn Command Verb Format

Verb ID

Payload

Response

Get

F19

See bitfield table

Set1

719

See bits [7:0] of bitfield table

0000_0000h

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