Practice - Program B.1: Time Delay (Mode 0)
Practice Questions
Test your understanding with targeted questions
What is the purpose of Mode 0 in the 8254 timer?
💡 Hint: Consider how timers usually signal when they finish counting.
What is a Control Word in the context of the 8254 timer?
💡 Hint: Think of it like an instruction set for the timer.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the maximum count value for a 16-bit timer?
💡 Hint: Think about the binary representation of 16 bits.
Is the Control Word for the 8254 timer a single byte?
💡 Hint: Consider the size of standard control data.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You need to generate a delay using a 4 MHz clock frequency. How would you generate a 250 ms delay? What initial count should be loaded?
💡 Hint: Manage long counts carefully by breaking them down.
Your embedded system has to toggle an output every 100 ms using the timer. How would you configure it, and what outputs should you expect?
💡 Hint: Think about the transitions of states in the timer.
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Reference links
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