AT43312 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT43312 Datasheet PDF : 21 Pages
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Configuration Descriptor
This Configuration Descriptor provides information about AT43312’s configuration.
Offset Field
Description
0 bLength
Define size of this descriptor = 9 bytes
1 bDescriptorType
Descriptor type = Configuration
2 wTotalLength
Total length of data returned for this configuration. Consists of the
combined length of configuration, interface, endpoint and hub descriptors
= 34 bytes
4 bNumInterface
Number of interfaces supported by this configuration
5 bConfiguration
Value
Argument value for this configuration to be used by Set Configuration
command
6 iConfiguration
Index of string descriptor describing this configuration (not supported)
7 bmAttributes
Configuration characteristics = Bus and Self-Powered with Remote
Wakeup
8 MaxPower
Maximum power consumption of USB device from bus = 100 mA
Size (bytes)
1
1
2
Value
0x09
0x02
0x22
0x00
1
0x01
1
0x01
1
0x00
1
0xE0
1
0x32
Bus Powered Mode:
Offset Field
7 bmAttributes
8 MaxPower
Description
Configuration characteristics = Bus-Powered with Remote Wakeup
Maximum power consumption of USB device from bus = 500 mA
Size (bytes)
1
1
Value
0xA0
0xFA
Interface Descriptor
The Interface Descriptor provides information about the single interface which the AT43312 supports.
Offset Field
Description
Size (bytes) Value
0 bLength
Define size of this descriptor = 9 bytes
1
0x09
1 bDescriptorType
Descriptor type = Interface
1
0x04
2 bInterfaceNumber
Number of interface = 1, index = 0
1
0x00
3 bAlternatSetting
Alternate setting value for the interface identified in the prior field = 0
1
0x00
4 bNumEndpoints
Number of endpoints used by this interface = 1
1
0x01
5 bInterfaceClass
Class code = HUB_CLASSCODE = 09
1
0x09
6 bInterfaceSubClass Subclass code = 0
1
0x00
7 bInterfaceProtocol
Protocol code = 0
1
0x00
8 iInterface
Index of string descriptor describing this interface = not supported
1
0x00
10
AT43312
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