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lecNew-23-Interrupt

lecNew-23-Interrupt - WPI ECE2801 Foundations of Embedded...

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WPI ECE2801 Foundations of Embedded Computer Systems Lecture 23: Reset and Interrupt
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EE2801: Foundations of Embedded Systems Lecture 23 Three Ways to Change Program Flow Jumps (BR): one-way trip Procedure CALLs : (Always) Go and RETurn Interrupts: External signals requesting CPU attention Like procedures (labeled subblocks of code that execute and return) Initiated outside of CPU and tend to occur asynchronously Can be accepted and serviced by appropriate Interrupt Service Routine (ISR)
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