Practice 8254 Pin Description (key Pins) (1.4.1) - Interrupt Handling and Timer Interfacing (8085/8086 Microprocessors with 8253/8254 Timer)
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

8254 Pin Description (Key Pins)

Practice - 8254 Pin Description (Key Pins)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the D0-D7 pin on the 8254 represent?

💡 Hint: Think about where data travels from and to.

Question 2 Easy

How does the CS pin function?

💡 Hint: Consider how devices are selected to operate.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the CS pin do on the 8254?

Activates timer for communication
Sets counting mode
Resets the timer

💡 Hint: Consider which pin is essential for operation.

Question 2

The D0-D7 pins are:

True
False

💡 Hint: Remember what D0-D7 signifies.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a simple circuit using the 8254 Timer to generate a square wave at 1 kHz. Identify which pins would be used.

💡 Hint: Remember the formula for frequency and the maximum count of the timer.

Challenge 2 Hard

Explain how you would use the 8254 to create a timer that generates a pulse every 500 milliseconds using an external clock of 2 MHz.

💡 Hint: Considering how frequency relates to time and recall how to determine the initial count.

Get performance evaluation

Reference links

Supplementary resources to enhance your learning experience.