Microprocessor Subject Tutorials & Notes | Beginners Guide

Microprocessor Tutorials & Notes – Welcome to this comprehensive Microprocessor Tutorials and Notes hub, designed to help students and enthusiasts build a strong foundation in microprocessor concepts. This page brings together all essential topics in one place — from basic architecture and instruction sets to advanced concepts and practical applications of microprocessors. Whether you’re preparing for exams, working on projects, or simply aiming to understand how microprocessors work at a deeper level, these structured tutorials and easy-to-follow notes will guide you step by step. Explore the content at your own pace and strengthen your understanding with clear explanations and well-organized resources. Each chapter are with their subtopics contain the block and functional diagrams to explain the topics in detail.

As the microprocessor and computer architecture are related to each other, if you are learning about the microprocessor, then you must also learn the architecture of the computer. So, after completing this microprocessor series, learn about the computer architecture guide that we have created. Follow and read all the articles/chapters in the same manner as given below.

Chapter 1: Fundamentals of Microprocessor

In this chapter, we are going to learn about the basics of a microprocessor, its definition, components, working process, Terms, and features. Then we will learn about the types of microprocessor, their development, computer generations, computer system types based on microprocessors, programming language types, basic computer structure based on microprocessors, Interfacing logic devices, and the number system arithmetics used in microprocessors.

Topics:

  1. Introduction to Microprocessor
  2. Generations of Computer
  3. Microprocessor Types
  4. Types of Computer Systems
  5. Types of Programming Languages
  6. Basic Computer Structure
  7. Interfacing Logic Devices
  8. Number System in Computer
  9. Number System Arithmetic – Addition & Subtraction

Chapter 2: 8085 Microprocessor Architecture

In this chapter, first, we are going to learn how a microprocessor can function as a CPU. Then we will learn about the 8085 Microprocessor Architecture, its operations, the 40-pin configuration, Demultiplexing of the Address and Data Bus, and how memory works and is organized with the 8085 Microprocessor.

Topics:

  1. Microprocessor as CPU
  2. 8085 Microprocessor Architecture
  3. Pin Configuration of 8085 Microprocessor
  4. Demultiplexing of Address and Data Bus in 8085
  5. Basic Operations of the 8085 Microprocessor
  6. Memory Organization in 8085 Microprocessor

Chapter 3: Memory and Input/Output Interfacing

In this chapter, we are going to learn about the memory structure used in a microprocessor. Addressing Methods and Interfacing of Memory, Input/Output Structure, and their interfacing. And then we will learn about how to select the Input and output devices for the Microprocessor.

Topics:

  1. Microprocessor memory structure
  2. Memory Interfacing with 8085 Microprocessor
  3. Memory address decoding in a microprocessor
  4. Input/Output Interfacing in Microprocessor

Chapter 4: Assembly Language Programming with Microprocessor

In this chapter, we are going to learn about how to program the 8085 Microprocessor, Assembly Language with 8085, classification, and instruction operations like Data Transfer. After that, we will learn about the programming steps of 8085 with a flowchart. Then we will learn about the notations used in the instructions of the 8085. Then we will write an example program to learn about the structure of a program and the programming techniques used with the 8085. And lastly, we will learn about the debugging process in a microprocessor.

Topics:

  1. 8085 Microprocessor Programming Model
  2. 8085 Assembly Language Programming
  3. 8085 Microprocessor Instructions
  4. Microprocessor Programming Steps
  5. Flowchart Design of a Program
  6. 8085 Microprocessor Data Transfer Instructions
  7. 8085 Microprocessor Arithmetic Instructions
  8. 8085 Microprocessor Logical Instructions
  9. 8085 Microprocessor Branch Instructions
  10. Machine-Processor Control Instructions
  11. Basic Structure of an Assembly Language Program
  12. Programming Techniques for Repeated Tasks
  13. Debugging of a Microprocessor Program

Chapter 5: Time Delay, Stack, and Subroutine

In this chapter, we are going to learn about how to perform a time delay in a microprocessor. How a stack is used with a microprocessor to store temporary information, and how to write a subroutine program to perform a particular task.

Topics:

  1. 8085 Microprocessor Timing Operations
  2. Timing Diagram of 8085 Microprocessor
  3. Time Delay in Microprocessor
  4. Stack in 8085 Microprocessor
  5. Subroutine in 8085 Microprocessor
  6. MACRO in Microprocessor

Chapter 6: Interrupts and Interfacing Data Converters

In this chapter, we are going to learn about the interrupts used in a microprocessor to break the sequence of program execution, Interrupt structure, instructions, and their processing. After that, we will disucss about RST instruction that is used as a breakpoint in the microprocessor. Then we will learn about the Digital to Analog Converter and the Analog to Digital Converter with their technique and the interfacing of the DAC and ADC with the 8085 Microprocessor.

Topics:

  1. Interrupts in Microprocessor
  2. Digital to Analog Converter (DAC) in Microprocessor
  3. Analog to Digital Converter (ADC) in Microprocessor

Chapter 7: Programmable Peripheral Devices Interfacing

In this chapter, we are going to learn about how the microprocessor reads from and writes into a device using the Peripheral Devices. Then we will learn about the requirements that a microprocessor needs to interface with Programmable Peripheral devices. After that, we will learn about the working process, architecture, pin configuration, and block diagram of different types of PPI, and their interfacing with the microprocessor.

Topics:

  1. Programmable Peripheral Interface
  2. 8255 (PPI) Programmable Peripheral Interface
  3. Programmable Interval Timer (PIT) 8253/8254
  4. Programmable Interrupt Controller (PIC) 8259
  5. Direct Memory Access (DMA) Controller 8257

Chapter 8: Advanced Microprocessor 8086

In this chapter, we are going to learn about the Advanced Microprocessor series of 8086, including 8086, 8088, 80186, 80386, 80486, 80586, Intel MMX, Dual Core processor, CISC and RISC processors with their features, architecture, operating modes, pin diagrams, block diagram, Memory segmentation, and how the 8086 is different from the 8085 microprocessor.

Topics:

  1. 8086 Microprocessor Architecture, Instructions, and Pin Diagram
  2. Addressing Modes of the 8086 Microprocessor
  3. Instruction Set of 8086 Microprocessor
  4. 8088 Microprocessor Architecture with Pin Diagram
  5. Difference between 8085, 8086, and 8088 Microprocessors
  6. 80186 Microprocessor Architecture
  7. 80286 Microprocessor Architecture & Features
  8. 80386 Microprocessor Architecture & Features
  9. 80486 Microprocessor Architecture & Features
  10. 80586 (Pentium) Microprocessor Architecture & Features

Chapter 9: 8051 Microcontroller

In this chapter, we are going to learn about the 8051 Microcontroller, its operation, registers, internal and external memory management, Pin Configuration, and block diagram. After that, we learn about the working of Counters and Timers in a Microcontroller. After that, we will learn about how to program the 8051 Microcontroller.

Topics:

  1. 8051 Microcontroller Architecture
  2. 8051 Microcontroller Memory Organization
  3. 8051 Microcontroller Pin Configuration & Programming Model
  4. 8051 Microcontroller Timers and Counters
  5. Serial Communication in 8051 Microcontroller
  6. Interrupts of the 8051 Microcontroller
  7. Addressing Modes of the 8051 Microcontroller
  8. Intel MMX Architecture
  9. Dual Core Processor

Chapter 10: Microprocessor Applications

In this chapter, we are going to learn about Microprocessor Applications, including LED display, Multiplexed Display, and Liquid Crystal Display, along with their Block diagrams, Pin configurations, and interfacing with the microprocessor. Then we are going to learn about how the keyboard works using the keyboard matrix, Display Controller 8279, and USART 8251. After that, we learn about serial communication standards and system buses that microprocessors use.

Topics:

  1. LED & Multiplexed Display Interfacing with Microprocessor
  2. Liquid Crystal Display (LCD) Pin Configuration & Interfacing
  3. Matrix Keyboard Interfacing with Microprocessor
  4. 8279 Keyboard/Display Controller
  5. Programmable Communication Interface (USART) 8251
  6. Serial Communication Standards in Microprocessor
  7. Computer System Standard Buses

HOW TO USE THIS SYLLABUS

  1. Click on any topic to read detailed notes
  2. Follow chapters sequentially for better understanding
  3. Use this page for quick revision before exams

COURSE OBJECTIVES & BENEFITS

  1. To investigate the programmer’s model of a microprocessor, appreciate methods of connecting common peripheral devices, and understand the ways in which microprocessors can be used in automated systems.
  2. To understand the basic architecture of bit microprocessors.
  3. Identify/explain the operation of the components of a typical microprocessor: the role of the ALU, registers, stack, and the use of interrupts.
  4. Understand the issues and tradeoffs involved in the design of the various components and be able to evaluate different designs for their suitability for different tasks.
  5. Identify and explain the operations of peripherals typically used for interfacing microprocessors: A/D converters, D/A converters, Timer, USART, PIT controllers.
  6. To understand the interfacing of a 16-bit microprocessor with memory and peripheral chips, involving system design.
  7. To understand techniques for faster execution of instructions and improve the speed of operation and performance of microprocessors.
  8. To understand the concept of Interfacing.

COURSE OUTCOMES

  1. Understand the taxonomy of microprocessors and have knowledge of contemporary microprocessors.
  2. Describe the architecture, bus structure, and memory organization of 8085 as well as higher-order microprocessors.
  3. Explore techniques for interfacing I/O devices to the microprocessor 8085, including several specific standard I/O devices such as 8251 and 8255.
  4. Demonstrate programming using the various addressing modes and instruction set of the 8085 microprocessor.
  5. Design structured, well-commented, understandable assembly language programs to provide solutions to real-world control problems.
  6. Apply programming knowledge using the capabilities of the stack and the program counter.
  7. Design, code, and debug Assembly Language programs to implement simple programs.
  8. Understand and realize the Interfacing of memory & various I/O devices with the 8085 microprocessor.
  9. Understand the architecture and operation of Programmable Interface Devices and realize the programming and interfacing of them with the 8085 microprocessor.

SCOPE OF MICROPROCESSOR

  1. It has very wide applications in the field of instrumentation in systems like the control panel of a press printing machine, digital kiosks, credit card processing, security systems, etc.
  2. It is also used in medical instruments like ECG(electronic cardiogram), etc., making the device smart.
  3. Microprocessors are also used in various gaming consoles, DVD players, etc.
  4. Microprocessors are being used in a wide range of communication equipments like: in digital telephone sets, telephone exchanges, televisions, satellite communication, etc.
  5. As we all know about Personal Computers, and almost all have them at our homes, offices, etc.