ARM Architecture - Exception and Interrupt Model
If an ARM system incorrectly assigns a higher number to a critical exception, what is the likely problem?
If an ARM system incorrectly assigns a higher number to a critical exception, what is the likely problem?
medium📝 Analysis Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Understand priority impact on handling
Higher numbers mean lower priority, so a critical exception with a high number is handled later.Step 2: Predict system behavior
This delay can cause the critical exception to be delayed or missed, affecting system reliability.Final Answer:
The critical exception may be delayed or ignored -> Option AQuick Check:
Wrong priority number delays critical exception [OK]
Quick Trick: Critical exceptions need lowest priority number [OK]
Common Mistakes:
- Assuming system crashes immediately
- Thinking priority numbers do not affect handling
- Believing all exceptions run equally regardless of priority
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