Microprocessor 8086

Presentation on Microprocessor 8086

1. PRESENTED BY UMANG DHURI MICROPROCESSOR 8086 DEPARTMENT OF INFORMATION TECHNOLOGY SHAH AND ANCHOR KUTCHHI ENGINEERING COLLEGE

2. TABLE OF CONTENTS FEATURES PIN DIAGRAM ARCHITECTURE ADDRESSING MODES COMPARISON WITH 8085

3. FEATURES 16-Bit Data Transfer Reverse Compatibility Processor Speed and Memory Co-processor Support The introduction of the 8086 microprocessor in 1978 set the stage for an industry and worldwide standard that would become the basis for the architecture of every computer made today, regardless of the operating system. This chip had a certain set of features that led to it becoming the chip that almost all modern processors are based on.

4. PIN DIAGRAM

5. ARCHITECTURE

6. ADDRESSING MODES Register Addressing Modes Immediate Addressing Modes Memory Addressing Modes Direct Addressing Modes Relative addressing modes Implied or Implicit addressing mode

7. COMPARISION OF 8086 WITH 8085 MICROPROCESSOR 8086 MICROPROCESSOR 8085 It is a 16-bit Microprocessor It is a 8-bit Microprocessor Address bus is 20-bit hence can access 1 MB memory Address bus is 16-bit hence can access 64 kb memory It provides 16-bit registers Ax, Bx,. It provides 8-bit registers A, B, ….. 16-bits of Address bus AD0-AD15 are multiplexed 8-bits of Address bus AD0-AD7 are multiplexed Flag register is 16-bit and contains 9 flags Flag register is 8-bit and contains 5 flags There are two operating modes Operated only in one mode