STAC9250 datasheet(33/137 Pages) IDT

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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

5.5.13.

AFG GPIOEn

[1]

Data1

0x0

Data for GPIO1 (Pin 34). If this GPIO bit is

configured as Sticky (edge-sensitive) input,

it can be cleared by writing zero (one) here

when the corresponding Polarity Control bit

is zero (one).

[0]

Data0

0x0

Data for GPIO0 (Pin 33). If this GPIO bit is

configured as Sticky (edge-sensitive) input,

it can be cleared by writing zero (one) here

when the corresponding Polarity Control bit

is zero (one).

Table 34. AFG GPIOEn Command Verb Format

Verb ID

Payload

Response

Get

F16

See bitfield table

Set1

716

See bits [7:0] of bitfield table

0000_0000h

Table 35. AFG GPIOEn Command Response Format

Bit

Bitfield Name

Reset

Description

[31:4]

Rsvd

0x0

Reserved

[3]

Mask3

0x0

Enable for GPIO3:

0 = pin is disabled (Hi-Z state);

1 = pin is enabled; behavior determined by

GPIO Direction control

[2]

Mask2

0x0

Enable for GPIO2:

0 = pin is disabled (Hi-Z state);

1 = pin is enabled; behavior determined by

GPIO Direction control

Table 33. AFG GPIO Command Response Format

Bit

Bitfield Name

Reset

Description

STAC9250 Datasheet(PDF) 33 Page - Integrated Device Technology

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