Practice Procedure (3) - Interrupt Handling and Timer Interfacing (8085/8086 Microprocessors with 8253/8254 Timer)
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PROCEDURE

Practice - PROCEDURE

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does ISR stand for?

💡 Hint: Think about the context of handling interrupts.

Question 2 Easy

Name a type of interrupt.

💡 Hint: Recall the types mentioned earlier.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does an interrupt allow a microprocessor to do?

Ignore external events
React to external events
Pause all operations

💡 Hint: Think about how a microprocessor acknowledges input.

Question 2

True or False: An ISR can run while the main program is executing.

True
False

💡 Hint: Consider what happens during an interrupt.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design an ISR that counts how many times a button is pressed using RST 7.5. How would you implement this in assembly?

💡 Hint: Think about using registers to store the count value.

Challenge 2 Hard

Given a 2MHz clock, configure the 8254 timer to create a 20ms delay using Mode 0. What initial count do you need?

💡 Hint: Utilize the formula and make sure to consider the maximum limit of the counter.

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Reference links

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