Practice VIVA VOCE QUESTIONS - 7 | EXPERIMENT NO. 3 TITLE: Parallel I/O Interfacing with 8085 (8255 Programmable Peripheral Interface) | Microcontroller Lab
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Practice Questions

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Question 1

Easy

What does the 8255 PPI interface with?

💡 Hint: Think about devices like keyboards and printers.

Question 2

Easy

What is the role of the Chip Select (CS) signal?

💡 Hint: CS must be low for the 8255 to respond.

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 function of the 8255 Programmable Peripheral Interface?

  • To perform arithmetic operations
  • To manage input/output operations
  • To store data temporarily

💡 Hint: Think about its role in communication.

Question 2

True or False: The Control Word is only relevant for Mode 1 operations.

  • True
  • False

💡 Hint: Consider its relevance in various configurations.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a circuit where Port A controls 8 LEDs, and Port B reads 4 switches, and explain the control word needed.

💡 Hint: Break down the requirements to define input/output needs.

Question 2

Explain how to read input switches using Port B and update LEDs on Port C in a real-time manner.

💡 Hint: Consider real-time programming structures for the implementation.

Challenge and get performance evaluation