alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 54

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

8.18. Verb – Set Converter Stream, Channel (Verb ID=706h)
8.19. Verb – Get Pin Widget Control (Verb ID=F07h)
2+2 Channel High Definition Audio Codec
Set Command Format
‘Stream and Channel’ in Command Bit[7:0]
Note: This verb assigns stream and channel for output converters (NID=02h, 03h, 06h) and input converters
(NID=07h, 08h). Other widgets will ignore this verb.
Get Command Format
Codec Response for 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)
Codec Response for other NID
Bit [31:28]
Bit [31:28]
Cad=X
Cad=X
31:8
31:1
31:0
7:4
1:0
4:3
2:0
Bit
Bit
Bit
7
6
5
Description
Reserved. Read as 0’s.
Set Stream[3:0]. The link stream used by the converter. 0000b is stream 0, 0001b is stream 1, etc.
Set Channel[3:0]. The lowest channel used by the converter. A stereo converter will use the set channel n as
well as n+1 for its left and right channel.
Description
Reserved. Read as 0’s.
H-Phn Enable (Headphone Amplifier Enable, EN_AMP for an I/O unit).
0: Disabled
Note: Only HP-OUT (NID=15h) and LINE-OUT (NID=14h) support the headphone amplifier.
Out Enable (Output Buffet Enable, EN_OBUF for an I/O unit).
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
Not Supported (returns 00000000h).
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Table 50. Verb – Set Converter Stream, Channel (Verb ID=706h)
Table 51. Verb – Get Pin Widget Control (Verb ID=F07h)
Verb ID=F07h
1: Enabled
Verb ID=706h
Bit [19:8]
Bit [19:8]
1: Enabled
1: Enabled
001b: 50% of AVDD
100b: 80% of AVDD
Stream & Channel [7:0]
Payload Bit [7:0]
Payload Bit [7:0]
46
0’s
010b: Ground 0V
101b: 100% of AVDD
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Pin Control [7:0]
Response [31:0]
Response [31:0]
0’s for all nodes
ALC268 Series
Datasheet
Rev. 1.3