alc861 Realtek Semiconductor Corporation, alc861 Datasheet - Page 55

• Manufacturer Part Number: alc861
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.20. Verb – Set Configuration Default Bytes 0, 1, 2, 3
The BIOS can use this verb to figure out the default conditions (e.g., placement and expected default
device) for the Pin Widgets NID=0B~0Fh, 10h, 11h, 1Fh, 20h, and 12h.
8.21. Verb – Get BEEP Generator (Verb ID=F0Ah)
7.1 Channel High Definition Audio Codec
Set Command Format
Bit [31:28]
Note: Supported by Pin Widget NID=0B~0Fh, 10h, 11h, 1Fh, 20h, and 12h. Other widgets will ignore this verb.
Codec Response for All NID
Get Command Format
Bit [31:28]
‘Response’ for NID=23h
Bit
Codec Response for Other NID
CAd=X
CAd=X
31:0
31:8
31:0
7:0
Bit
Bit
(Verb ID=71Ch/71Dh/71Eh/71Fh for Bytes 0, 1, 2, 3)
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Reserved
Description
0’s
Description
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
Description
0’s
Table 47. Verb – Set Configuration Default Bytes 0, 1, 2, 3
Table 48. Verb – Get BEEP Generator (Verb ID= F0Ah)
71Dh, 71Eh, 71Fh
(Verb ID=71Ch/71Dh/71Eh/71Fh for Bytes 0, 1, 2, 3)
Verb ID= F1Bh
Verb ID=71Ch,
Bit [19:8]
Bit [19:8]
Payload Bit [7:0]
Payload Bit [7:0]
Label [7:0]
47
0’s
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Response [31:0]
Response [31:0]
0’s for all nodes
Divider [7:0]
Datasheet
ALC861
Rev. 1.3