AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 256

• Manufacturer Part Number: AT90USB1286-16MU
• Description: Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

21.5
21.5.1
21.5.2
256
Power modes
AT90USB64/128
Idle mode
Power down
Figure 21-13. USB General and OTG Controller Interrupt System
There are 2 kind of interrupts: processing (i.e. their generation are part of the normal processing)
and exception (errors).
Processing interrupts are generated when:
Exception Interrupts are generated when:
In this mode, the CPU core is halted (CPU clock stopped). The Idle mode is taken whatever the
USB controller is running or not. The CPU “wakes up” on any USB interrupts.
In this mode, the oscillator is stopped and halts all the product (CPU and peripherals). The CPU
“wakes up” when:
• ID Pad detection (insert, remove)(IDTI)
• VBUS plug-in detection (insert, remove) (VBUSTI)
• SRP detected(SRPI)
• Role Exchanged(ROLEEXI)
• Drop on VBus Detected(VBERRI)
• Error during the B-Connection(BCERRI)
• HNP Error(HNPERRI)
• Time-out detected during Suspend mode(STOII)
• the WAKEUPI interrupt is triggered in the Peripheral mode (HOST cleared),
OTGINT.5
OTGINT.4
OTGINT.3
OTGINT.2
OTGINT.1
OTGINT.0
USBINT.1
USBINT.0
ROLEEXI
HNPERRI
BCERRI
VBERRI
VBUSTI
STOI
SRPI
IDTI
USBCON.1
USBCON.0
OTGIEN.5
OTGIEN.4
ROLEEXE
OTGIEN.3
OTGIEN.2
OTGIEN.1
OTGIEN.0
BCERRE
VBUSTE
HNPERRE
VBERRE
STOE
SRPE
IDTE
USB General & OTG
Asynchronous Interrupt source
(allows the CPU to wake up from power down mode)
Interrupt Vector
7593A–AVR–02/06