alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 58

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.26. Verb – Set Configuration Default Bytes 0, 1, 2, 3
The BIOS can use this verb to figure out the default conditions for the Pin Widgets 14h~1Bh and
1Eh~1Fh such as placement and expected default device.
8.27. Verb – Get BEEP Generator (Verb ID=F0Ah)
2+2 Channel High Definition Audio Codec
Set Command Format
Note: Supported by Pin Widget NID=14h (LINE-OUT), 15h (HP-OUT), 16h (MONO-OUT), 18h (MIC1), 19h (MIC2),
1Ah (LINE1), 1Ch (CD-IN), 1Dh (PCBEEP), 1Eh (S/PDIF-OUT), 12h (DMIC-12), and 13h (DMIC-34). Other widgets
will ignore this verb.
Codec Response for All NID
Get Command Format
‘Response’ for NID=01h (Audio Function Group)
Codec Response for Other NID
Bit [31:28]
Bit [31:28]
Cad=X
Cad=X
31:0
31:8
31:0
7:0
Bit
Bit
Bit
(Verb ID=71Ch/71Dh/71Eh/71Fh for Bytes 0, 1, 2, 3)
Description
0’s.
Description
Reserved.
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.
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Table 58. Verb – Set Configuration Default Bytes 0, 1, 2, 3
Table 59. Verb – Get BEEP Generator (Verb ID=F0Ah)
(Verb ID=71Ch/71Dh/71Eh/71Fh for Bytes 0, 1, 2, 3)
Verb ID=F1Bh
71Dh, 71Eh, 71Fh
Verb ID=71Ch,
Bit [19:8]
Bit [19:8]
Payload Bit [7:0]
Payload Bit [7:0]
Label [7:0]
50
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]
ALC268 Series
Datasheet
Rev. 1.3