Practice Program B.2: Square Wave Generation (mode 3) (5.2.2) - Interrupt Handling and Timer Interfacing (8085/8086 Microprocessors with 8253/8254 Timer)
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Program B.2: Square Wave Generation (Mode 3)

Practice - Program B.2: Square Wave Generation (Mode 3)

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the initial count for a 1 MHz clock to generate a 20 kHz signal?

💡 Hint: Think of the formula: Initial Count = F_clk / F_out.

Question 2 Easy

Define what a square wave is.

💡 Hint: Consider the waveform shape.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the output of the 8254 timer in Mode 3?

Pulse Train
Sawtooth Wave
Square Wave

💡 Hint: Think about the characteristics of a square wave.

Question 2

True or False: In Mode 3 of the 8254, the output produces pulses only when the counter reaches zero.

True
False

💡 Hint: Recall the mode's functionality.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If the input clock is 4 MHz and you want to generate a square wave of 500 Hz, calculate the initial count and write the control word.

💡 Hint: Think about how frequency inputs influence outputs.

Challenge 2 Hard

Design a digital circuit that utilizes both square waves and sine waves. Discuss their interactions and use cases.

💡 Hint: Consider applications in communications where both waveforms might be essential.

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Reference links

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