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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does PPI stand for?
💡 Hint: Think about what a peripheral interface does.
Question 2
Easy
Name one mode of operation of the Intel 8255.
💡 Hint: Consider the fundamental modes explained.
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 PPI?
- To enable serial communication
- To interface with parallel devices
- To function as a memory mapper
💡 Hint: Consider what parallel communication entails.
Question 2
True or False? The control word format consists of 8 bits that configure the operational modes of the 8255.
- True
- False
💡 Hint: Reflect on how configuration works in digital devices.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a system using the 8255 to control a 4x4 matrix keyboard and explain the configuration.
💡 Hint: Consider how the rows and columns interact in a matrix setup.
Question 2
Explain the process to set up communication between the 8085 microprocessor and the 8255 for a scenario where multiple peripherals are involved.
💡 Hint: Think about how the microprocessor addresses different devices.
Challenge and get performance evaluation