Practice 8255 Pin Description (key Pins For 8085 Interfacing) (1.2.2) - Parallel I/O Interfacing with 8085 (8255 Programmable Peripheral Interface)
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8255 Pin Description (Key Pins for 8085 Interfacing)

Practice - 8255 Pin Description (Key Pins for 8085 Interfacing)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the purpose of the D0-D7 pins?

💡 Hint: Think about how data is transferred.

Question 2 Easy

What does CS stand for?

💡 Hint: What signal enables the PPI for communication?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the D0-D7 pin array provide?

Control signals
Data communication
Address selection

💡 Hint: Consider where data flows.

Question 2

True or False: The RESET pin sets all ports to output.

True
False

💡 Hint: Think about what 'reset' means.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a simple circuit diagram showing how to connect the 8255 to the 8085, labeling all key pins.

💡 Hint: Refer back to how the functional blocks interact.

Challenge 2 Hard

Explain what would happen if the RD signal goes low while CS is high.

💡 Hint: Consider the conditions required for a successful read operation.

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Reference links

Supplementary resources to enhance your learning experience.