UNIT – I
8085 architecture introduction-8085 Architecture-Block Diagram, Flag Register, Pin Diagram, Timing and Control Signals, System Timing Diagram, Instruction Set of 8085- Instruction & Data Formats- Addressing Modes- Instructions.

UNIT – II
8086 architecture 8086 Overview-Internal Architecture- Register Organization, Memory Segmentation, Flag Register, Pin Configuration, Physical Memory Organization,Features of some advanced Processors – 80286, 80386, Pentium

UNIT – III
Introduction to micro controllers 8051 Introduction, Architecture, Registers, Pin Description, Connections, I/O Ports, Memory Organization, Addressing Modes, Counters & Timers,Serial data Communication.

UNIT-IV
Programming the 8051- Assembly language Programming, Assembler directives, Instruction set – Moving Data, Logical operations – Byte level and bit level operations, Rotate and swap operations, Arithmetic operations, Jump and call Instructions, Interrupts & Returns

UNIT-V:
Interfacing of 8051 – keyboard, Displays, ADC converters, Multiple interrupts,– 8051 Data Communication modes