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TU Dresden, 4/29/2008 Slide 47
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Interrupts
DSPs must be able to execute tasks on
asynchronous events
Interrupts suspend the current processor task
and save its context
A interrupt service routine (ISR) is executed
After completion of the ISR, the context of the
former task is restored and the execution
continues
Interrupts are organized hierarchically
Î vs. Polling