μ
PD720210
4. USB Descriptor Information
R19UH0093EJ0200 Rev.2.00
Page 25 of 59
May 26, 2014
4.2.5
Interface Descriptor (combined with Configuration Descriptor)
Table 4-18. Interface Descriptor
Field Name
Size
Value
Description
bLength
1
09h
Descriptor Length (9 bytes)
bDescriptorType 1 04h Interface
bInterfaceNumber 1
00h
bAlternateSetting 1 00h
bNumEndpoints 1 01h 1
Endpoint
bInterfaceClass 1 09h
bInterfaceSubClass 1
00h
bInterfaceProtocol 1
00h
iInterface 1
00h
No
String
4.2.6
Endpoint Descriptor (combined with Configuration Descriptor)
Table 4-19. Endpoint Descriptor
Field Name
Size
Value
Description
bLength
1
07h
Descriptor Length (7 bytes)
bDescriptorType 1 05h Endpoint
bEndpointAddress 1
81h
EP1
IN
bmAttributes 1
03h
Interrupt
wMaxPacketSize
2
0001h
Max 1 byte data
bInterval 1
0Ch
4.2.7
Other Speed Configuration Descriptor
Table 4-20. Other Speed Configuration Descriptor
Field Name
Size
Value
Description
bLength
1
09h
Descriptor Length (9 bytes)
bDescriptorType
1
07h
Other Speed Configuration
wTotalLength
2
0019h
Descriptor Total Length (25 bytes)
bNumInterfaces 1 01h 1
interface
bConfigurationValue
1
01h
Configuration Value is 1
iConfiguration 1 00h
No
String
bmAttributes 1
E0h
Self-powered
Remote Wakeup supported
bMaxPower 1
00h
0mA
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