Practice - Design Complexity and Overhead
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Practice Questions
Test your understanding with targeted questions
What does area overhead refer to in the context of scan chains?
💡 Hint: Think about the extra components and their spatial requirements.
How does scan chain implementation affect performance?
💡 Hint: Consider the time taken to move bits through the chain.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is area overhead?
💡 Hint: Think about what happens physically to the chip.
True or False: Longer scan chains always improve fault detection.
💡 Hint: Reflect on the negative impacts of extending scan chains.
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Challenge Problems
Push your limits with advanced challenges
You are designing a test circuit that uses a scan chain with 50 flip-flops. Calculate the expected area overhead if each flip-flop consumes 2 mm², and suggest optimization strategies to mitigate this.
💡 Hint: Focus on assessing necessity versus efficiency.
A scan chain design has led to a 30% decrease in performance in a circuit. Suggest and justify three modifications to improve performance while maintaining test coverage.
💡 Hint: Consider approaches that can simultaneously address both issues.
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Reference links
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