AK4571 Datasheet, PDF (41/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
4.8.
Set Feature
Offset Field
Size
0
bmRequestType
1
1
bRequest
1
2
wValue
2
4
wIndex
2
6
wLength
2
wValue ENDPOINT(0) HALT
wValue REMOTE_WAKEUP
Value
0x00
0x02
0x03
0x0000
0x0001
0x0000
0x000
Description
Device
Endpoint
SET_FEATURE
ENDPOINT(0) HALT
REMOTRE_WAKEUP
AK4571 STALL
AK4571 Remote wakeup
ACK
4.9.
AK4571
Set Interface
Interface Alternate Setting
Interface #0, Interface #3 Alt0
Iterface #1, Interface #2
Offset Field
Size Value
0
bmRequestType
1 0x01
1
bRequest
2
wValue
4
wIndex
6
wLength
1 0x0B
2 0x0000 or
0x0001
2 0x0000
0x0001
0x0002
0x0003
2 0x0000
Description
ONE
D7 0 = Host to device
D6..5 0 = Standard request
D4..0 1 = Recipient is interface
SET_INTERFACE
Zero bandwidth Alternate Setting
Normal Isochronous Streaming
Audio Control Interface
Audio Streaming Interface IN
Audio Streaming Interface OUT
HID Interface
Zero
Alt0,Alt1
4.10. Synch Frame
AK4571
MS0153-J-02
- 41 -
2003/3