STAC9271 datasheet(44/223 Pages) IDT

44 / 223 page

STAC9271/9272/9273/9274

10-CHANNEL HIGH DEFINITION AUDIO CODEC

PC AUDIO

IDT™

10-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9271/9272/9273/9274 V 1.0 MARCH2007

IDT CONFIDENTIAL

6.2.15. AFG GPIODir

Table 41. 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

[1]

Mask1

0x0

Enable for GPIO1:

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

1= pin is enabled; behavior determined by

GPIO Direction control

[0]

Mask0

0x0

Enable for GPIO0:

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

1= pin is enabled; behavior determined by

GPIO Direction control

Table 42. AFG GPIODir

Command Verb Format

Verb ID

Payload

Response

Get

F17

See bitfield table.

Set1

717

See bits [7:0] of bitfield table.

0000_0000h

Table 43. AFG GPIODir

Command Response Format

Bit

Bitfield Name

Reset

Description

[31.:5]

Rsvd

0x0

Reserved

[4]

Control4

0x0

Direction control for GPIO4

0= GPIO signal is configured as input

1= GPIO signal is configured as output

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