alc861 Realtek Semiconductor Corporation, alc861 Datasheet - Page 56
alc861
Manufacturer Part Number
alc861
Description
7.1 Channel High Definition Audio Codec
Manufacturer
Realtek Semiconductor Corporation
Datasheet
1.ALC861.pdf
(67 pages)
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Quantity
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Part Number:
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REALTEK
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8.22. Verb – Set BEEP Generator (Verb ID=70Ah)
8.23. Verb – Function Reset (Verb ID=7FFh)
7.1 Channel High Definition Audio Codec
Set Command Format
Bit [31:28]
‘Divider’ in Set Command
Note: All nodes except BEEP generator (NID=23h) will ignore this verb.
Codec Response for All NID
Command Format (NID=01H)
Bit [31:28]
Codec Response
Note: The Function Reset command causes all widgets to return to their power-on default state.
CAd=X
CAd=X
31:8
31:0
31:0
7:0
Bit
Bit
Bit
Node ID=23h
Node ID=01h
Bit [27:20]
Bit [27:20]
Reserved
Reserved. Read as 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
Description
Table 49. Verb – Set BEEP Generator (Verb ID= 70Ah)
Verb ID=71Bh
Verb ID=7FFh
Table 50. Verb – Function Reset (Verb ID=7FFh)
Bit [19:8]
Bit [19:8]
Payload Bit [7:0]
Payload Bit [7:0]
Divider [7:0]
48
0’s
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Response [31:0]
Response [31:0]
0’s for all nodes
0’s
Datasheet
ALC861
Rev. 1.3