Practice Observations And Results (5) - 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

OBSERVATIONS AND RESULTS

Practice - OBSERVATIONS AND RESULTS

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What should the output state of LEDs be if 9AH is sent to the Control Word Register?

💡 Hint: Review Control Word configurations.

Question 2 Easy

What binary pattern corresponds to 0H?

💡 Hint: Think about how binary states translate to LED displays.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

When LED states do not match expected patterns after programming, what is a primary step to take?

Correct the assembly code
Check hardware connections
Both A and B

💡 Hint: Consider what environments affect your assembly execution.

Question 2

True or False: Not finding expected results in observations does not require immediate adjustments.

True
False

💡 Hint: Think about why evaluation matters.

Get performance evaluation

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You observed that Port C has not changed after reading from Port B. Outline a systematic approach to troubleshoot this issue.

💡 Hint: Consider completing the full cycle of input through output.

Challenge 2 Hard

If you encounter inconsistencies during your observations—specifically an LED blinking unexpectedly—what could be the causes? Provide at least three potential issues.

💡 Hint: Reassess your assumptions regarding connections and code.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.