alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 52

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

8.14. Verb – Set Converter Format (Verb ID=2h)
8.15. Verb – Get Power State (Verb ID=F05h)
2+2 Channel High Definition Audio Codec
Set Command Format
‘Set’ Payload in Command Bit[15:0]
Get Command Format
Codec Response for NID=01h (Audio Function Group)
Note: Specific blocks will be powered down in each power state. Refer to section 7.5 Power Management, page 24.
Codec Response for other NID
Bit [31:28]
Bit [31:28]
Cad=X
Cad=X
31:16
13:11
10:8
31:6
31:0
6:4
3:0
5:4
3:2
1:0
Bit
Bit
Bit
15
14
7
Description
Reserved. Read as 0.
Stream Type (TYPE).
0: PCM
Sample Base Rate (BASE).
0: 48kHz
Sample Base Rate Multiple (MULT).
000b: *1
Sample Base Rate Divisor (DIV).
000b: /1
100b: /5
Reserved. Read as 0.
Bits per Sample (BITS).
000b: 8 bits
100b: 32 bits
Number of Channels.
0: 1 channel
Description
Reserved. Read as 0’s.
PS-Act. Actual Power State [1:0].
00: Power state is D0
PS-Act indicates the actual power state of the referenced node. For Audio Function Group nodes
(NID=01h), PS-Act is always equal to PS-Set.
Reserved. Read as 0’s.
PS-Set. Set Power State [1:0].
00: Power state is D0
PS-Set controls the current power setting of the referenced node.
Description
Not Supported (returns 00000000h).
Node ID=Xh
Node ID=Xh
Bit [27:20]
Bit [27:20]
Table 46. Verb – Set Converter Format (Verb ID=2h)
Table 47. Verb – Get Power State (Verb ID=F05h)
Verb ID=Ah
Verb ID=2h
Bit [19:16]
Bit [19:8]
1: Non-PCM
1: 44.1kHz
001b: *2
001b: /2
101b: /6
001b: 16 bits
101b~111b: Reserved
1: 2 channels
01: Power state is D1
01: Power state is D1
Payload Bit [15:0]
Payload Bit [7:0]
Set format [15:0]
010b: *3
010b: /3
110b: /7
010b: 20 bits
2: 3 channels
44
0’s
10: Power state is D2
10: Power state is D2
011b: *4
011b: /4
111b: /8
011b: 24 bits
………
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
Power State [7:0]
Response [31:0]
Response [31:0]
0’s for all nodes
11: Power state is D3
11: Power state is D3
100b~111b: Reserved
15: 16 channels
ALC268 Series
Datasheet
Rev. 1.3