AT90USB162 Atmel Corporation, AT90USB162 Datasheet - Page 188

• 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

19.4.3
188
AT90USB82/162
Interrupts
After setting USBE, the USB Controller enters in the Device state.
The USB Controller can at any time be ‘stopped’ by clearing USBE. In fact, clearing USBE acts
as an hardware reset on the USB macro.
Two interrupts vectors are assigned to USB controller.
Figure 19-8. USB Interrupt System
The macro distinguishes between USB General events in opposition with USB Endpoints events
that are relevant with data transfers relatives to each endpoint.
Figure 19-9. USB General interrupt vector sources
• the USB controller clock is stopped in order to minimize the power consumption
• the USB controller is disabled,
• USB is in the suspend mode,
• the Device USB controllers internal state is reset.
• The DPACC bit and the DPADD10:0 field can be set by software. The DPRAM is not cleared.
• The SPDCONF bits can be set by software.
(FRZCLK=1),
UPRSMI
UDINT.6
EORSMI
UDINT.5
WAKEUPI
UDINT.4
UDINT.3
UDINT.2
UDINT.0
EORSTI
SUSPI
SOFI
USB Device
Endpoint
Interrupt
Interrupt
UPRSME
EORSME
WAKEUPE
UDIEN.6
UDIEN.5
UDIEN.4
EORSTE
UDIEN.3
UDIEN.2
UDIEN.0
SUSPE
SOFE
Asynchronous Interrupt source
(allows the CPU to wake up from power down mode)
USB Endpoint/Pipe
Interrupt Vector
Interrupt Vector
USB General
Interrupt Vector
USB General
7707F–AVR–11/10