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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the primary function of the 8254 timer?
💡 Hint: Think about what timers generally do in systems.
Question 2
Easy
How many counters does the 8254 timer have?
💡 Hint: Consider how many operations can be performed simultaneously.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the acronym SC in the control word format stand for?
- Select Counter
- Set Control
- Stop Count
💡 Hint: Look at how we designate counters in the setup.
Question 2
The 8254 timer can generate square waves. True or False?
- True
- False
💡 Hint: Revisit the operational modes discussed.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You need to configure Counter 0 of the 8254 to generate a delay of 200 ms using a 4 MHz clock. What control word will you use, and what initial count needs to be loaded?
💡 Hint: Think about how many counts are required for the desired timing.
Question 2
Describe how you would implement a frequency divider using the 8254 and provide an example calculation for a frequency division of 10 kHz using a 20 MHz clock.
💡 Hint: Identify the modes that are suitable for generating a continuous output based on initial counts.
Challenge and get performance evaluation