Basic features of 8085 microprocessor pdf

To find the smallest number in an array of data using 8085 instruction set. It has16 bit address lines, therefore it can access 16 2 64 kbytes of memory locations. The time for the back cycle of the intel 8085 a2 is 200 ns. Know about the basic microprocessor history and its block diagram. Features of 8086 microprocessor 8086 range of clock rates. It forma a microcomputer when combined with memory and inputoutput devices. Difference between 8085 and 8086 difference between. Features of a microprocessor here is a list of some of the most prominent features of any microprocessor.

Thus has the ability to address 4 gb or 2 32 of physical memory multitasking and protection capability are the two key characteristics of 80386 microprocessor. The important features of microprocessor are as follows. For example, motorolla has an 8 bit microprocessor called the 6800. However, it requires less support circuitry, allowing simpler and less expensive microcomputer systems to be built. The basic architecture of microprocessors and microprocessor systems is covered in chapters 2 and 3. The 8085 and its busses the 8085 is an 8bit general purpose microprocessor that can address 216 64k byte of memory. The 8085 microprocessor was designed by intel in mid 1977. The term 16bit means that its arithmetic logic unit, internal registers and most of its instructions are designed to work with 16bit binary words. Lecture note on microprocessor and microcontroller theory.

Evolution of microprocessor and types 8085 microprocessor, salient features of 8085 architecture of 8085 functional block diagram, pin description. Features of 8085 8085 microprocessor course z series innovations. The microprocessor chips are available at low prices and results its low cost. Tutorial on introduction to 8085 architecture and programming. The 8085 machine language is very different from that of the 6800.

Brief history of microprocessors learn how these microchips. It is the set of instructions that the microprocessor can understand. Introduction to microprocessor download ebook pdf, epub. The microprocessor has multiple data type formats like binary, bcd, ascii, signed and unsigned numbers. The 8085 machine language the 8085 from intel is an 8bit microprocessor. The arithmetic logic unit performs all arithmetic and logic operations.

It is a well established fact that with the advancement of technology, the cost does not increase proportionately with the complexity. Read here to know about how the microprocessors have evolved over time. Chapter 1 is an introduction to microprocessors, including an outline of their historical development and descriptions of several applications. Each instruction has two parts, one is task to be performed, called the operation code opcode, and the second is the data to be operated on called the operand. The intel 8085 eightyeightyfive is an 8bit microprocessor produced by intel and introduced in march 1976. Here is a list of some basic terms used in microprocessor. It is compatible with microprocessor 8080 and require less additional hardware, which makes it. As some of the architectural drawbacks associated with 8080 was also. If bit d71, bits d6d0 determines io functions in various modes. Introduction to microprocessors, flying fish is an euphorbia. This books presents an integrated treatment of the hardware and software aspects of the 8085 and 8086 microprocessors and 8051 microcontroller. Before knowing about the 8085 architecture in detail, lets us briefly discuss about the basic features of 8085 processor 8085 microprocessor is an 8bit microprocessor with a 40 pin dual in line package.

The function of the program counter is to point to the memory address from which the. Microprocessor architecture has evolved from single core processors to multicore processors. An instruction is a command to the microprocessor to perform a given task on a specified data. Unit i syllabus introduction to 8085 basic concepts of. The address and data bus are multiplexed in this processor which helps in providing more control signals. Microprocessor 8086 architecture programming and interfacing. The reason for the difference is that some actually most instructions have multiple different formats.

The second important feature of a microprocessor is its small size. The basic components of microprocessor architecture include. Ramesh gaonkar comment on the best concepts of ramesh gaonkers book pdf is here microprocessor. Microprocessor 8085 architecture, programming and interfacing. In this article you will get to know about the definition, architecture, block diagram and working of 8085 microprocessor.

Lecture note on microprocessor and microcontroller theory and. Instruction set the group of commands that the microprocessor can understand is called instruction set. It consists of three main sections, an arithmetic and logic unit a timing. The internal architecture its free pdf download and the attachment is located at the boom of the post, you can click the attachment to download will automatically start.

Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. Microprocessors evolution explained from intels 8085, 8086 to pentium quad core processors. The basic units or blocks of a microprocessor are alu, an array of registers and. Apr 05, 2017 basic features of 8085 8085 is single chip 8bit microprocessor. Some of the main topic of the book include the following topics. College, ulhasnagar3 instruction set of 8085 microprocessor the 8085 microprocessor has. The text offers a comprehensive treatment of microprocessors hardware and software. There are 5 interrupt signals in 8085 microprocessor. Central processing unit cpu is carved on a single chip is called a microprocessor. That is why, microprocessor chips are available at fairly low prices.

Microprocessor, l basic functions of the microprocessor, system bus architecture, pin configuration and programmers model of intel 8085 microprocessor. Microprocessor 8085 is the basic processor from which machine language programming can be learnt. Features of 8085 intel 8085 is an 8bit, nmos microprocessor. After the request is completed, the control goes back to the main program. Sep 25, 2018 14 sep link 1 direct link the z80 microprocessor. Introduction to 8085 microprocessor linkedin slideshare.

The most important characteristics of a microcomputer is its low cost. Loosely coupled configuration has shared system bus, system memory, and system io. It has 8bit io addresses, 8 2 256 0255 ports can be accessed. The function of dl instruction is to enable the disabled interrupt system. Microcomputer, microprocessor and microcontroller microcomputer is a computer with a microprocessor as its cpu. Jul 28, 2016 there are some of the difference mentioned below. Mar 21, 2018 what is 8086 microprocessor, and its features. Intel 8086 architecture chapter 2 major features of 8086 processor, 808688 cpu architecture.

The main operation of alu is arithmetic as well as logical which includes. One accumulator, one flag register, 6 general purpose registers and 2 special purpose register. Chapters 4 and 5 present programming and some basic features of the instructions. Processors with two or more cores are faster because they can process multiple pieces of information simultaneously. In addition to the above mentioned registers intel 8085 microprocessor also contains address. Out of the two operands to be operated upon, one comes from accumulator acc, whilst the other one may be. The most important feature of a microcomputer is its low cost. Microprocessor types and specifications page 3 of 158 file.

This microprocessor exhibits some unique characteristics and this is the reason it still holds popularity among the microprocessors basically, 8085 was the first commercially successful microprocessor by intel. A program written for the 8085 cannot be executed on the 6800 and vice versa. Introduction fundamentals of microprocessor 8085 and. Also know about registers,arithmetic and logic units and various other units which help the microprocessor to perform an operation. Any module could be a processor capable of being a bus. Mar 18, 2017 features of intel 8085 microprocessor. It determines the number of operations per second the processor can perform. May 26, 2010 microprocessor is the controlling unit or cpu of a microcomputer, fabricated on a very small chip capable or performing alu operations and communicating with the external word connected to it. It is a 40 pin c package fabricated on a single lsi chip. It is the number of bits processed in a single instruction. It is an 8 bit microprocessor each character is represented by 8 bits or a byte.

Before knowing about the 8085 architecture in detail, lets us briefly discuss about the basic features of 8085 processor. Because of the widespread use of microprocessors, the volume of production is very high. The basic units or blocks of a microprocessor are alu, an array of registers and control unit. Keeping the same basic hardware, a microprocessorbased system can be. Basic features of 8085 8085 is single chip 8bit microprocessor. The 8085 uses a total of 246 bit patterns to form its instruction set. This was 80386 microprocessor that was designed by intel in october 1985 and was an upgraded version of 80286 microprocessor. The functional components of a cpu are arithmetic logic unit alu, control and timing units, registers are found in a single integrated circuit called ic. Basic concepts of microprocessors differences between. Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. It has 16bit address lines a0a15 to point the memory locations and hence can point up to 216 65535 bytes 64kb memory. But with the advent of technology intel introduced a 32bit microprocessor whose processing speed was twice as that of 80286 microprocessor.