Practice - Part B: Timer Interfacing (8254) - 4.2
Practice Questions
Test your understanding with targeted questions
What is the function of the GATE pin in the 8254?
💡 Hint: Think about how the timer starts counting.
How many independent counters does the 8254 timer have?
💡 Hint: Remember the key features of the 8254.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the 8254 timer use to determine its operation mode?
💡 Hint: It’s the key to configuring the timer.
True or False: The GATE pin on the 8254 timer must be low to start counting.
💡 Hint: Consider what happens when the GATE is low.
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Challenge Problems
Push your limits with advanced challenges
You have a clock frequency of 1.5 MHz and need to generate a delay of 200 ms. What should be the initial count, and what control word would you configure?
💡 Hint: Pay attention to the clock frequency limits of the timer.
For a 20 kHz square wave, what is the control word required if using a 1 MHz clock? Provide calculations.
💡 Hint: Ensure the count fits the binary limits of the counter.
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Reference links
Supplementary resources to enhance your learning experience.