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4 cards from this section. Quick, good the night before a test.
What is an interrupt?
Think about why devices need to communicate with the CPU.
What does the interrupt enable flag do?
Consider what happens when this flag is set or cleared.
What is the purpose of the interrupt enable flag?
Think about the CPU's ability to communicate with other devices.
True or False: Hardware polling is more efficient than software polling.
Consider the speed of communication in a busy system.
Design a system that uses both software and hardware polling for interrupt management. Explain how each method works and when to use each.
Consider the advantages and disadvantages of each method.
Discuss the impact of not properly managing interrupt priorities in a real-time operating system scenario, such as in aerospace control systems.
Think about the consequences of prioritizing non-critical tasks over essential operations.
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