Practice Programs To Be Executed (4) - Parallel I/O Interfacing with 8085 (8255 Programmable Peripheral Interface)
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PROGRAMS TO BE EXECUTED

Practice - PROGRAMS TO BE EXECUTED

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the function of the Control Word Register in the 8255?

💡 Hint: Think about initialization.

Question 2 Easy

What mode allows individual bits of a port to be changed without affecting others?

💡 Hint: Relates to individual pin adjustments.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of the 8255 PPI?

To communicate with serial devices
To provide parallel I/O ports
To act as a memory unit

💡 Hint: Identify the role of the PPI.

Question 2

True or False: The D7 bit in the control word is used for selecting BSR mode.

True
False

💡 Hint: Recall what BSR mode signifies.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

How would you create a program that interfaces with multiple LEDs and switches, allowing the user to turn LEDs on based on switch positions?

💡 Hint: Think about the control logic between inputs and outputs.

Challenge 2 Hard

Design a basic control sequence for controlling two devices via the 8255 simultaneously while maintaining switch input states.

💡 Hint: Consider simultaneous I/O operations and ensuring the correct data flow.

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Reference links

Supplementary resources to enhance your learning experience.