ARM Architecture - Power Modes
If a clock gating signal disables the clock to a module during idle, what happens to the module's power consumption?
If a clock gating signal disables the clock to a module during idle, what happens to the module's power consumption?
medium📝 Analysis Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze effect of clock gating on switching
Disabling the clock stops the module's internal switching activity.Step 2: Understand power consumption relation
Switching activity is a major source of dynamic power, so stopping it reduces power consumption.Final Answer:
It decreases because the module stops switching -> Option BQuick Check:
Clock gating reduces switching = less power [OK]
Quick Trick: No clock means no switching, so power drops [OK]
Common Mistakes:
- Assuming power increases due to glitches
- Thinking power stays constant
- Believing power fluctuates randomly
Master "Power Modes" in ARM Architecture
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore ARM Architecture Quizzes