8086 Microprocessor Interfacing Pdf

This comprehensive text provides an easily accessible introduction to the principles and applications of microprocessors. It explains the fundamentals of architecture, assembly language programming, interfacing, and applications of Intel’s 8086/8088 micro-processors, 8087 math coprocessors, and 8255, 8253, 8251, 8259, 8279 and 8237 peripherals.

  • Microprocessor Tutorial
  • 8085 Microprocessor
  • 8086 Microprocessor
  • Multiprocessor Configuration
  • I/O Interfacing
  • Microcontrollers
  • Peripheral Devices
  • Microprocessor Useful Resources
  • Selected Reading

8086 Microprocessor is an enhanced version of 8085Microprocessor that was designed by Intel in 1976. It is a 16-bit Microprocessor having 20 address lines and16 data lines that provides up to 1MB storage. It consists of powerful instruction set, which provides operations like multiplication and division easily.

Peripheral Interfacing 8086 Microprocessor Pdf

It supports two modes of operation, i.e. Maximum mode and Minimum mode. Maximum mode is suitable for system having multiple processors and Minimum mode is suitable for system having a single processor.

Features of 8086

The most prominent features of a 8086 microprocessor are as follows −

  • It has an instruction queue, which is capable of storing six instruction bytes from the memory resulting in faster processing.

  • It was the first 16-bit processor having 16-bit ALU, 16-bit registers, internal data bus, and 16-bit external data bus resulting in faster processing.

  • It is available in 3 versions based on the frequency of operation −

    • 8086 → 5MHz

    • 8086-2 → 8MHz

    • (c)8086-1 → 10 MHz

  • It uses two stages of pipelining, i.e. Fetch Stage and Execute Stage, which improves performance.

  • Fetch stage can prefetch up to 6 bytes of instructions and stores them in the queue.

  • Execute stage executes these instructions.

  • It has 256 vectored interrupts.

  • It consists of 29,000 transistors.

Comparison between 8085 & 8086 Microprocessor

Microprocessor interfacing pdf
  • Size − 8085 is 8-bit microprocessor, whereas 8086 is 16-bit microprocessor.

  • Address Bus − 8085 has 16-bit address bus while 8086 has 20-bit address bus.

  • Memory − 8085 can access up to 64Kb, whereas 8086 can access up to 1 Mb of memory.

  • Instruction − 8085 doesn’t have an instruction queue, whereas 8086 has an instruction queue.

  • Pipelining − 8085 doesn’t support a pipelined architecture while 8086 supports a pipelined architecture.

  • I/O − 8085 can address 2^8 = 256 I/O's, whereas 8086 can access 2^16 = 65,536 I/O's.

  • Cost − The cost of 8085 is low whereas that of 8086 is high.

Architecture of 8086

The following diagram depicts the architecture of a 8086 Microprocessor −

Here you can download the free lecture Notes of Microprocessor and Interfacing Pdf Notes – MPI Notes Pdf materials with multiple file links to download. Microprocessor and Interfacing Notes Pdf – MPI Pdf Notes book starts with the topics Vector interrupt table, Timing diagram, Interrupt structure of 8086. Vector interrupt table.

The Microprocessor and Interfacing Pdf Notes – MPI Notes Pdf

Microprocessor and Interfacing Notes pdf – MPI pdf notes – MPI notes pdf file to download are listed below please check it –

Microprocessor and Interfacing Notes Book

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Unit 2

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Unit 3

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Unit 4

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Unit 5

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8086 Microprocessor Interfacing Pdf

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Unit 4

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Unit 5

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Note :- These notes are according to the R09 Syllabus book of JNTU.In R13 and R15,8-units of R09 syllabus are combined into 5-units in R13 and R15 syllabus. If you have any doubts please refer to the JNTU Syllabus Book.

Microprocessor and Interfacing Notes Pdf – MPI Pdf Notes

UNIT-I

An over view of 8085, Architecture of 8086 Microprocessor. Special functions of General purpose registers. 8086 flag register and function of 8086 Flags. Addressing modes of 8086. Instruction set of 8086. Assembler directives, simple programs, procedures, and macros.

UNIT-II

Assembly language programs involving logical, Branch & Call instructions, sorting, evaluation of arithmetic expressions, string manipulation.

UNIT-III

Pin diagram of 8086-Minimum mode and maximum mode of operation. Timing diagram. Memory interfacing to 8086 (Static RAM & EPROM). Need for DMA. DMA data transfer Method and Interfacing with 8237/8257.

UNIT-IV

8255 PPI – various modes of operation and interfacing to 8086. Interfacing Keyboard and Displays, 8279 Stepper Motor and actuators. D/A and A/D converter interfacing.

Microprocessor and Interfacing Notes pdf Details

UNIT-V

8086 Microprocessor Interfacing Pdf Download

Interrupt structure of 8086. Vector interrupt table. Interrupt service routines. Introduction to DOS and BIOS interrupts. 8259 PIC Architecture and interfacing cascading of interrupt controller and its importance.

8086 Microprocessor Programming And Interfacing The Pc Pdf

UNIT-VI

Serial data transfer schemes. Asynchronous and Synchronous data transfer schemes. 8251 USART architecture and interfacing. TTL to RS 232C and RS232C to TTL conversion. Sample program of serial data transfer.IEEE 488 GPIB.

UNIT-VII

Overview of 8051 microcontroller, Architecture, I/O ports and memory organisation, addressing modes and instruction set of 8051, simple programs

8086 Microprocessor Interfacing

UNIT-VIII

Timer/ Counter operation in 8051, serial communication control in 8051 and interrupt structure of 8051, memory and I/O interfacing of 8051.
Reference – Microprocessor and Interfacing Notes – MI notes pdf – MI pdf notes – MI Pdf – MI Notes

1. Micro Processors & Interfacing – Douglas U. Hall, 2007.
2. The 8088 and 8086 Micro Processors – PHI, 4th Edition, 2003.
3. Micro Computer System 8086/8088 Family Architecture, Programming and Design – By Liu and GA Gibson, PHI, 2nd Ed.,

Text books – Microprocessor and Interfacing Notes – MI notes pdf – MI pdf notes – MI Pdf – MI Notes

1. Advanced microprocessor and Peripherals – A.K.Ray and K.M.Bhurchandi, TMH, 2000.
2. Micro Controllers –Ajay V.Deshmukh, Tata McGraw Hill Edition.

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