Practice - External Interrupts (overlineINT0, overlineINT1)
Practice Questions
Test your understanding with targeted questions
What pins are associated with overlineINT0 and overlineINT1?
💡 Hint: Think about the pin numbers on the 8051.
What is the function of the EA bit in the IE register?
💡 Hint: Consider its role in managing interrupt responses.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What type of triggering can overlineINT0 be configured for in the TCON register?
💡 Hint: Remember that TCON controls multiple interrupt settings.
True or False: The ISR for an external interrupt must always be written in assembly language.
💡 Hint: Think about programming language rules for 8051.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a small program to handle overlineINT0 to turn on an LED every time a button connected to P3.2 is pressed. Provide the code and explain how the interrupt works.
💡 Hint: Focus on defining the ISR and configuring the control registers.
Explain how you would handle scenarios where both external interrupts are triggered at the same time. Include considerations for priority management.
💡 Hint: Think about the implications of having two events occur simultaneously.
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Reference links
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