Practice Observations And Results (5) - Interrupt Handling and Timer Interfacing (8085/8086 Microprocessors with 8253/8254 Timer)
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OBSERVATIONS AND RESULTS

Practice - OBSERVATIONS AND RESULTS

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What signal does an Interrupt Service Routine respond to?

💡 Hint: Think about the function of interrupts.

Question 2 Easy

What does the 8254 timer do?

💡 Hint: Recall its main functionalities.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of an interrupt in a microprocessor?

To multiply numbers
To signal events
To read memory

💡 Hint: Consider what prompts the CPU to change its current task.

Question 2

Is a non-maskable interrupt disablable?

True
False

💡 Hint: Reflect on the critical nature of non-maskable interrupts.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a simple program using the 8254 timer that generates a delay of 1 second with a 1 MHz clock input.

💡 Hint: Consider how you would break down the 1 second into timer counts based on the clock frequency.

Challenge 2 Hard

Explain the role of non-maskable interrupts in critical system operations.

💡 Hint: Think about why some events are so critical that they shouldn't be ignored.

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Reference links

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