alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 55

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

8.20. Verb – Set Pin Widget Control (Verb ID=707h)
8.21. Verb – Get Unsolicited Response Control (Verb ID=F08h)
Determines whether a widget is enabled to send an unsolicited response. An HDA codec can use an
unsolicited response to inform software of a real-time event.
2+2 Channel High Definition Audio Codec
Set Command Format
‘Pin Control’ in command [7:0]: pin widget NID=12h (DMIC-12), 13h (DMIC-34), 14h (LINE-OUT), 15h (HP-OUT),
16h (MONO), 18h (MIC1), 19h (MIC2), 1Ah (LINE1), 1Ch (CD-IN), 1Dh (PCBEEP) and 1Eh (S/PDIF-OUT)
Get Command Format
Codec Response for NID=01h (GPIO in Audio Function Group), 14h~16h (port jack detect), 18h~1Bh (port jack detect)
Codec Response for other NID
Bit [31:28]
Bit [31:28]
Cad=X
Cad=X
31:1
31:8
31:0
2:0
6:4
3:0
Bit
Bit
Bit
4:
7
6
5
7
Description
Reserved. Read as 0’s.
H-Phn Enable.
0: Disabled
Note: Only HP-OUT (NID=15h) and LINE-OUT (NID=14h) support the headphone amplifier.
Out Enable.
0: Disabled
Note: DMIC-12 (NID=12h), DMIC-34 (NID=13h), MIC2 (NID=19h), CD-IN (NID=1Ch), and
PCBEEP (NID=1Dh) do not support output.
In Enable (Input Buffer Enable, EN_IBUF for an I/O unit).
0: Disabled
Note: MONO-OUT (NID-16h) does not support input.
Reserved.
VrefEn (Vrefout Enable Control).
000b: Hi-Z (Disabled)
011b: Reserved
110b~111b: Reserved
Note: Only MIC1 (NID=18h), MIC2 (NID=19h), and LINE1 (NID=1Ah) support reference voltage outputs.
Description
Reserved. Read as 0’s.
Unsolicited Response is Enabled.
0: Disabled
Reserved. Read as 0’s.
Assigned Tag for Unsolicited Response.
The tag[3:0] is assigned by software to determine which widget generates unsolicited responses.
Description
Not Supported (returns 00000000h).
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Table 53. Verb – Get Unsolicited Response Control (Verb ID=F08h)
Table 52. Verb – Set Pin Widget Control (Verb ID=707h)
Verb ID=F08h
Verb ID=707h
Bit [19:8]
Bit [19:8]
1: Enabled
1: Enabled
1: Enabled
001b: 50% of AVDD
100b: 80% of AVDD)
1: Enabled
Payload Bit [7:0]
Payload Bit [7:0]
Pin Control [7:0]
47
0’s
010b: Ground 0V
101b: 100% of AVDD
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Response [31:0]
Response [31:0]
0’s for all nodes
32-bit Response
ALC268 Series
Datasheet
Rev. 1.3