Contents

1. Review of Combinational & Sequential Logic Circuits

1.1 Introduction

1.2 Encoder

1.3 Tristate logic

1.4 Latch

1.5 Adder

1.6 ALU ICs – (Arithmetic Logic Unit)

1.7 Comparison between combinational and sequential logic system

2. Data converters

2.1 Introduction

2.2 Digital to Analog Converters (DAC)

2.3 DAC Specifications

2.4 Analog to Digital Converters (ADC)

2.5 ADC specifications

2.6 DAC and ADC IC’s

3. Semiconductor memories

3.1 INTRODUCTION

3.2 Memory operation

3.3 CLASSIFICATION OF MEMORIES

3.4 Read Only Memory (ROM)

3.5 Random Access Memory (RAM)

3.6 Flash Memory

3.7 Comparisons

3.8 Memory IC’s

4. Microprocessor 8085

4.1 Introduction

4.2 Evolution of Microprocessor

4.3 Microprocessor Based System

4.4 Architecture of 8085 Microprocessor

4.5 Pin definition of 8085 microprocessor

5. 8085 Instructions and Programming

5.1 Introduction

5.2 Instruction Format

5.3 Instruction Word-Size

5.4 Opcode Formats

5.5 Addressing Modes of 8085

5.6 Instruction Set of 8085

5.7 More Programming example

5.8 Timing Diagram

5.9 Stack

5.10 Subroutine

5.11 Interrupts

6. Memory System Design with 8085

6.1 Introduction

6.2 Supporting Circuits

6.3 Demultiplexing of address / data bus of 8085

6.4 Generation of Control Signals

6.5 Typical 8085 system configuration

6.6 Address decoding Techniques

6.7 Memory Interfacing

6.8 Interfacing examples

6.9 Interfacing Techniques

6.10 Input Output Interfacing