STAC9271 datasheet(53/223 Pages) IDT

53 / 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

6.2.25. AFG DMic

[2]

OD2

0x0

GPIO2 Drive Mode;

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

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

[1]

OD1

0x0

GPIO1 Drive Mode;

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

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

[0]

OD0

0x0

GPIO0 Drive Mode;

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

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

Table 62. AFG DMic

Command Verb Format

Verb ID

Payload

Response

Get

FF0

See bitfield table.

Set1

7F0

See bits [7:0] of bitfield table.

0000_0000h

Table 63. AFG DMic

Command Response Format

Bit

Bitfield Name

Reset

Description

[31.:4]

Rsvd

0x0

Reserved

[3.:2]

PhAdj

0x0

Selects what phase of the DigMic clock the

data should be latched:

0= rising edge,

1= center of high,

2= falling edge,

3= center of low.

[1.:0]

Rate

0x2

Selects the DigMic rate:

0= 4.704 MHz,

1= 3.528 MHz,

2= 2.352 MHz,

3= 1.176 MHz.

Table 61. AFG GPIODrive

Command Response Format

Bit

Bitfield Name

Reset

Description

STAC9271 데이터시트(PDF) 53 Page - Integrated Device Technology

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