AT43311 Просмотр технического описания (PDF) - Atmel Corporation
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AT43311 Datasheet PDF : 24 Pages
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AT43311
Configuration Descriptor
This Configuration Descriptor provides information about the AT43311’s configuration.
Offset Field
Description
Size (bytes)
0
bLength
Define size of this descriptor = 9 bytes
1
1
bDescriptorType
Descriptor type = Configuration
1
2
wTotalLength
Total length of data returned for this
configuration. Consists of the combined length
2
of configuration, interface, endpoint and hub
descriptors = 52 bytes
4
bNumInterface
Number of interfaces supported by this
configuration.
1
5
bConfigurationValue Argument value for this configuration to be used
1
by Set Configuration command
6
iConfiguration
Index of string descriptor describing this
1
configuration (not supported).
7
bmAttributes
Configuration characteristics = Bus and Self
1
Powered with Remote Wakeup
8
MaxPower
Maximum power consumption of USB device
1
from bus = 100 mA
Interface Descriptor
The Interface Descriptor provides information about the single interface which the AT43311 supports.
Offset Field
Description
Size (bytes)
0
bLength
Define size of this descriptor = 9 bytes.
1
1
bDescriptorType
Descriptor type = Interface
1
2
bInterfaceNumber
Number of interface = 1, index = 0
1
3
bAlternateSetting
Alternate setting value for the interface identified
1
in the prior field = 0
4
bNumEndpoints
Number of endpoints used by this interface = 1
1
5
bInterfaceClass
Class code = HUB_CLASSCODE = 09
1
6
bInterfaceSubClass Subclass code = 0
1
7
bInterfaceProtocol
Protocol code = 0
1
8
iInterface
Index of string descriptor describing this
1
interface = not supported
Value
09H
02H
22H
00H
01H
01H
00H
E0H
32H
Value
09H
04H
00H
00H
01H
09H
00H
00H
00H
9
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