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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the 8254 timer primarily do?
💡 Hint: Think about timing in computers.
Question 2
Easy
Name one mode of operation for the 8254.
💡 Hint: What would you call a mode that creates a waveform?
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 is the main purpose of the 8254 timer?
- To store data
- To generate interrupts
- To generate accurate time delays
💡 Hint: Consider what a timer does in general.
Question 2
True or False: The 8254 has three independent 8-bit counters.
- True
- False
💡 Hint: Pay attention to the bit width!
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a system using the 8254 timer that switches an LED on and off at a frequency of 5 Hz. Calculate the initial clock count based on a given clock frequency of 1 MHz.
💡 Hint: Consider how the frequencies relate and the limitations of timer counts.
Question 2
Develop a suitable control word for configuring Counter 2 of the 8254 to operate in Mode 1 for a hardware retriggerable one-shot, ensuring it counts in binary.
💡 Hint: Remember how the bits are set corresponding to the mode!
Challenge and get performance evaluation