STAC9227 datasheet(45/237 Pages) IDT

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STAC9227/9228/9229/9230

8-CHANNEL HIGH DEFINITION AUDIO CODEC

PC AUDIO

IDT™

8-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9227/9228/9229/9230V 1.0 MARCH 2007

IDT CONFIDENTIAL

6.2.14. AFG GPIOEn

[1]

Data1

0x0

Data for GPIO1. 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. 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 39. 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 40. AFG GPIOEn

Command Response Format

Bit

Bitfield Name

Reset

Description

[31:5]

Rsvd

0x0

Reserved

[4]

Mask4

0x0

Enable for GPIO4:

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

1 = pin is enabled; behavior determined by

GPIO Direction control

[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 38. AFG GPIO

Command Response Format

Bit

Bitfield Name

Reset

Description

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