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📝 The Interrupts in 8085 Microprocessor

📖 From An Introduction To Microprocessor 8085 • 7. Interrupt Instructions of 8085 • 12 questions available

Practice MCQs for The Interrupts in 8085 Microprocessor. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-30

2
Easy Questions
6
Medium Questions
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Hard Questions

📝 Sample Questions

Q1. Which flip‑flop is cleared automatically when any interrupt is accepted by the 8085?

🔹 A. Interrupt Enable (IE) flip‑flop
🔹 B. TRAP flip‑flop
🔹 C. RFS flip‑flop
🔹 D. SOD flip‑flop

💡 Difficulty: easy | ✅ Correct: A

Q2. A microcontroller must toggle an LED each time a push‑button is pressed. Which interrupt type is most suitable for this task?

🔹 A. INTR (non‑vectored)
🔹 B. RST5.5
🔹 C. RST6.5
🔹 D. RST5.5 (vectored)

💡 Difficulty: medium | ✅ Correct: D

Q3. In the code below, EI is executed and a peripheral raises an INTR request. Which address will the program counter receive when the interrupt is serviced?

🔹 A. The address supplied by the external device
🔹 B. 0x003C (RST7.5 vector)
🔹 C. 0x0028 (RST5.5 vector)
🔹 D. 0x0000 (reset vector)

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Memory Mapped I/O in 8085 Microprocessor📝 I/O Mapped I/O or Isolated I/O in 8085 Microprocessor📝 Data Transfer Schemes in 8085 Microprocessor📝 Programmed I/O Data Transfer in 8085 Microprocessor📝 Interrupt Driven I/O Data Transfer in 8085 Microprocessor
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