AT90USB162 Atmel Corporation, AT90USB162 Datasheet - Page 4

• Manufacturer Part Number: AT90USB162
• Manufacturer: Atmel Corporation

Specifications of AT90USB162

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 22
• Ext Interrupts: 21
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 5
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

4.2
4.3
4.3.1
4
Offset
bmRequestType
10
12
14
0
1
2
4
5
6
7
8
0010 0001b
0010 0001b
1010 0001b
1010 0001b
0010 0001b
1010 0001b
0010 0001b
DFU Specific Requests
DFU Descriptors Set
DFU Device Descriptor
bMaxPacketSize0
bDeviceSubClass
bDescriptorType
bDeviceProtocol
bDeviceClass
iManufacturer
bcdDevice
idProduct
idVendor
bLength
bcdUSB
Field
DFU_GETSTATUS (3)
DFU_CLRSTATUS (4)
DFU_GETSTATE (5)
DFU_DNLOAD (1)
DFU_UPLOAD (2)
DFU_DETACH (0)
DFU_ABORT (6)
device that supports DFU is not capable of changing its mode of operation on its own. External
(human or host operating system) intervention is required.
In addition to the USB standard requests, 7 DFU class-specific requests are used to accomplish
the upgrade operations:
Table 4-1.
The device exports the DFU descriptor set, which contains:
This descriptor is only present in the DFU mode descriptor set. The DFU class code is reported
in the bDeviceClass field of this descriptor.
Table 4-2.
• A DFU device descriptor
• A single configuration descriptor
• A single interface descriptor (including descriptors for alternate settings, if present)
bRequest
Size
DFU Class-specific Requests
DFU Mode Device Descriptor
1
1
2
1
1
1
1
2
2
2
1
0x0000
wTimeout
03EBh
2FFBh
0100h
Value
wValue
wBlock
wBlock
FEh
01h
00h
12h
01h
32
Zero
Zero
Zero
Zero
0
Size of this descriptor, in bytes
DFU functional descriptor type
USB specification release number in binary coded decimal
Application Specific Class Code
Device Firmware Upgrade Code
The device does not use a class specific protocol on this interface
Maximum packet size for endpoint zero (limited to 32 due to Host side
driver)
Vendor ID
Product ID
Device release number in binary coded decimal
Index of string descriptor
Interface (4)
Interface (4)
Interface (4)
Interface (4)
Interface (4)
Interface (4)
Interface (4)
wIndex
Description
wLength
Length
Length
Zero
Zero
Zero
6
1
Firmware
Firmware
7618C–AVR–07/08
Status
none
none
State
none
Data