Practice Timing Control (7.5.4) - AXI4-Lite GPIO Peripheral and DDR Memory Controller
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Engineering Courses
Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Certifications
Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Timing Control

Practice - Timing Control

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does CAS latency refer to?

💡 Hint: Think about the timing between commands and responses.

Question 2 Easy

Why is it necessary to refresh DDR memory?

💡 Hint: Consider how DRAM stores data.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does CAS latency stand for?

Column Access Speed
Column Address Strobe
Command Address Speed

💡 Hint: Think about how addresses are related to memory operations.

Question 2

True or False: Higher CAS latency improves system performance.

True
False

💡 Hint: Consider how longer delays affect responsiveness.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Consider a DDR memory system with a CAS latency of 4 and a T_rfc of 64ms. If you have a system that requires 1000 refreshes per hour, will this system be able to maintain data integrity? Discuss the implications.

💡 Hint: Think of how refresh intervals relate to timing constraints.

Challenge 2 Hard

You've designed a DDR memory system and noticed that the performance has been subpar. With a logged CAS latency of 10, T_rp of 12ns, and T_rcd of 14ns, what adjustments would you consider making, and how?

💡 Hint: Consider how each parameter impacts overall latency.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.