ALC892 datasheet(65/89 Pages) REALTEK

65 / 89 page

ALC892

Datasheet

7.1+2 Channel HD Audio Codec with Content Protection

Track ID: JATR-2265-11

Rev. 1.1

8.30. Verb – Set BEEP Generator (Verb ID=70Ah)

Table 63. Verb – Set BEEP Generator (Verb ID= 70Ah)

Set Command Format

Codec Response Format

Bit [31:28]

Bit [27:20]

Bit [19:8]

Payload Bit [7:0]

Response [31:0]

CAd=X

Node ID=01h

Verb ID=70Ah

Divider [7:0]

0’s for All Nodes

‘Divider’ in Set Command

Bit

Description

31:8

Reserved.

7:0

Frequency Divider, F[7:0].

The internal BEEP frequency is the result of dividing the 48kHz clock by 4 times the number specified in

F[7:0].

The lowest tone is 48kHz/(255×4)=47Hz.

The highest tone is 48kHz/(1×4)=12kHz.

A value of 00h in F[7:0] disables the internal BEEP generator and allows external PCBEEP input.

Note: All nodes except Audio Function Group (NID=01h) will ignore this verb.

Codec Response for All NID

Bit

Description

31:0

0’s.

8.31. Verb – Get GPIO Data (Verb ID=F15h)

Table 64. Verb – Get GPIO Data (Verb ID= F15h)

Get Command Format

Codec Response Format

Bit [31:28]

Bit [27:20]

Bit [19:8]

Payload Bit [7:0]

Response [31:0]

CAd=X

Node ID=01h

Verb ID=F15h

0’s

32-bit Response

Codec Response for NID=01h (Audio Function Group)

Bit

Description

31:8

Reserved.

7:3

GPIO[7:2] Data. Not supported in the ALC892.

2:0

GPIO[1:0] Data.

The value written (output) or sensed (input) on the corresponding pin if it is enabled.

Codec Response for Other NID

Bit

Description

31:0

0’s.

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