Practice Observation (3.3) - Parallel I/O Interfacing with 8085 (8255 Programmable Peripheral Interface)
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

Observation

Practice - Observation

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What happens to the connected LEDs when you send '55H' to Port A?

💡 Hint: Think about the binary representation of '55H'.

Question 2 Easy

Describe what to do if the LEDs don't respond after sending data.

💡 Hint: What should you verify first in your setup?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What should you observe when sending a control word for LEDs?

They should all be ON.
They should blink.
They should light up according to the data byte sent.

💡 Hint: Consider what the binary representation dictates for LED states.

Question 2

True or False: Register examination is unnecessary if the LED outputs are correct.

True
False

💡 Hint: Is it sufficient to only look at outputs?

Get performance evaluation

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a more complex system where multiple LEDs are controlled based on multiple switch inputs, involving conditional checks. How would you program it?

💡 Hint: What conditions would dictate which LEDs light up?

Challenge 2 Hard

Imagine a scenario where you cannot see the LEDs. Create a different method within the 8085 code to verify the outputs sent to Port A.

💡 Hint: How can you effectively log and verify output without visual aids?

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.