STAC9271 datasheet(52/223 Pages) IDT

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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

6.2.24. AFG GPIODrive

[1]

GP1

0x1

GPIO1 Polarity;

If configured as an output:

0= inverting

1= non-inverting

If configured as a non-sticky input:

0= inverting

1= non-inverting

If configured as a sticky input:

0= falling events will be detected

1= rising events will be detected

[0]

GP0

0x1

GPIO0 Polarity;

If configured as an output:

0= inverting

1= non-inverting

If configured as a non-sticky input:

0= inverting

1= non-inverting

If configured as a sticky input:

0= falling events will be detected

1= rising events will be detected

Table 60. AFG GPIODrive

Command Verb Format

Verb ID

Payload

Response

Get

FEF

See bitfield table.

Set1

7EF

See bits [7:0] of bitfield table.

0000_0000h

Table 61. AFG GPIODrive

Command Response Format

Bit

Bitfield Name

Reset

Description

[31.:5]

Rsvd

0x0

Reserved

[4]

OD4

0x0

GPIO4 Drive Mode;

0= push-pull (drive 0 and 1),

1= open drain (drive 0, float for 1).

[3]

OD3

0x0

GPIO3 Drive Mode;

0= push-pull (drive 0 and 1),

1= open drain (drive 0, float for 1).

Table 59. AFG GPIOPlrty

Command Response Format

Bit

Bitfield Name

Reset

Description

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