Page 158 - DCAP210_INTRODUCTION__TO_MICROPROCESSORS

Introduction to Microprocessors Gurwinder Kaur, Lovely Professional University

Notes Unit 11: Counters and Time Delays

CONTENTS
Objectives
Introduction
11.1 Program Counter
11.1.1 Updating the PC
11.2 Branching

11.2.1 Non-Offset Branching
11.2.2 Offset Branching
11.2.3 Offset and Non-Offset Branching
11.3 Time Delays
11.4 Programmed Time Delays
11.5 Using a Register Pair as a Loop Counter

11.5.1 Nested Loops
11.5.2 Nested Loops for Delay
11.5.3 Delay Calculation of Nested Loops
11.5.4 Increasing the Delay
11.6 Programs using If Loops Counters Accumulators
11.7 Hexadecimal Counter
11.8 Summary
11.9 Keywords
11.10 Self-Assessment Questions

11.11 Review Questions
11.12 Further Reading

Objectives

After studying this unit, you will able to understand the following:
• Explain program counter

• Understand the concept of branching
• Describe time delays

• Explain programmed time delays
• Understand register pair as a loop counter
• Explain programs using if loops counters accumulators
• Describe hexadecimal counter

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