AK4571 Datasheet, PDF (30/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
3.3.10. Mixer Unit Desciptor(ID=9)
Mixer Unit D/A and Microphone
Offset Field
0 blength
Size Value
1 0x0D
1 bdescriptorType
1 0x24
2 bdescriptorSubtype 1 0x04
3 bunitID
1 0x09
4 bnrInPins
1 0x02
5 baSourceID(1)
1 0x06
6 baSourceID(2)
1 0x03
7 bnrChannels
1 0x02
8 wChannnelConfig
10 iChannelNames
11 bmControl
12 Imixer
2 0x000 3
1 0x00
1 0x00
1 0x00
3.3.11. Selector Unit Desciptor(ID=7)
Offset Field
Size Value
0 blength
1 0x07
1 bdescriptorType
1 0x24
2 bdescriptorSubtype 1 0x05
3 bunitID
1 0x07
4 bNrInPins
1 0x01
5 bSourceID(1)
1 0x01
6 IFeature
1 0x00
[AK4571]
Description
Size of this descriptor
CS_INTERFACE
MIXER_UNIT subtype
ID of this terminal
Number of Input Pin
From Feature Unit 2(ID6)
From IT(ID3)
Number of logical output channels in the
Mixer’s output audio channel cluster
describes the spatial location L/R front
Index of String descriptor
bit map no control
Index of String descriptor
Description
Size of this descriptor
CS_INTERFACE
Selector_UNIT descriptor subtype
ID of this feature Unit
Inputs Pins
From Input Terminal
Unused
MS0153-J-02
- 30 -
2003/3