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UNIT I: Data Representation Addresses *8086 Architecture, CPU architecture *Adressing Modes *Instruction formats Instruction Execution Timing *Assembler Instruction Format *Data Transfer Instructions Arithmetic Instructions Branch Instructions, *Loop Instructions, *NOP and HLT Instructions, Flag Manipulation Instructions, *Logical Instructions, *Shift and Rotate Instructions, *Directives and Operators *Assembly process Translation of assembler instructions. UNIT II: Modular Programming: *Linking and Relocation --Segment Combination *Stacks, *Procedures(mainly Recursive Preoce *Interrupts and Routines *Macros Byte and String Manipulation: *String Instructions *REP prefix Text Editor Example I/O Programming: *Programmed I/O, *Interrupt I/O *Block Transfers and DMA UNIT III: System Bus Structure: *Basic 8086/8088 configuration( Minimum mode and maximum mode one will be surly come) *system bus timing *Interrupt priority management, Bus standards. I/O Interfaces: *Serial Communication interface *Parallel Communication(Programable peripheral interface) *Programmable Timers and Event Counters *Keyboard and display,

*DMA Controllers, Diskette Controllers, Maximum node and 16 bit Bus Interface Design. 10:01 PM

UNIT IV Co processors configurations the 8087 numeric data processors The 8089 I/O processor – Programming aspects. UNIT V: Microcontrollers vs General Purprose Micro-Processors Criteria for chosing a Microcontroller Overview of 8051 Family 8051Assembly programing instrucitons in 8051 Structure of Assembly language Assembling and Running an 8051 program 8051 Data types and Directives 8051 Flag Bits and PSW register 8051 Register banks and Stacks