AK5371A Datasheet, PDF (18/32 Pages) Asahi Kasei Microsystems – 2ch A/D Converter with USB I/F

ASAHI KASEI
[AK5371A]
3.5 Endpoint descriptor
3.5.1
Offset
0
1
2
3
4
6
7
8
Standard Endpoint Descriptor
Field
Size
bLength
1
bDescriptorType
1
bendpointAddress
1
bmAttributes
1
wMaxPacketSize
2
wInterval
1
bRefresh
1
bSynchAddress
1
Value
0x09
0x05
0x81
0x05
0x0064
0x01
0x00
0x00
Description
Length of this descriptor
ENDPOINT descriptor
Endpoint 1, IN direction
Isochronous, asynchronous, not shared
2byte*50sample*1ch=100 byte/frame
One packet every frame (Must be set to 1)
3.5.2
Offset
0
1
2
3
4
5
Class-specific isochronous audio data endpoint descriptor
Field
Size Value
Description
bLength
1 0x07
Size of this descriptor
bDescriptorType
1 0x25
CS_ENDPOINT
bDescriptorSubtype 1 0x01
GENERAL
bmAttributes
1 0x01
Sample rate control
bLockDelayUnits
1 0x00
Unused
wLockDelay
2 0x0000
MS0546-E-00
MS0103-E-00
18
2007/02