Rainbow Electronics AT91CAP9S250A - Manual (Page 698)

698
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
– Warn Limit interrupt: The CAN module is in Error-active Mode, but at least one of
its error counter value exceeds 96.
– Wake-up interrupt: This interrupt is generated after a wake-up and a bus
synchronization.
– Sleep interrupt: This interrupt is generated after a Low-power Mode enable once
all pending messages in transmission have been sent.
– Internal timer counter overflow interrupt: This interrupt is generated when the
internal timer rolls over.
– Timestamp interrupt: This interrupt is generated after the reception or the
transmission of a start of frame or an end of frame. The value of the internal
counter is copied in the CAN_TIMESTP register.
All interrupts are cleared by clearing the interrupt source except for the internal timer counter
overflow interrupt and the timestamp interrupt. These interrupts are cleared by reading the
CAN_SR register.