Definition of a micro controllers, Computer Engineering

Assignment Help:

Before we take a detailed look about the Motorola 68HC11 series of micro controllers it is useful to define what is meant by a micro controller. As the name suggests a micro controller is a small totally packaged controller capable of controlling motor, sensors etc. To appreciate the difference between a micro controller and a personal computer, let us consider a typical functional block of a small computer system. Typical all computer systems consist of four functional blocks: - Input, Output, process and memory as shown below

1994_Definition of a micro controllers.png

These blocks handle the means by which information (data) is transferred and processed to achieve a given task (program). Interfacing to the 'real' world is handled by the input/output blocks (IO), data and program is stored in memory and the process computes/performs the required function. In a typical computer these blocks are physical different integrated circuit s and are interconnected by PCB tracks which form a highway bus structure. This independence of the functions allows designer the ability to expand on the design and add additional devices i.e. Disk drives, CD ROMs etc. In the field of micro controllers, most systems simply require a limited (Fixed) amount of I/O and memory; therefore various manufacturers have compressed the entire system onto a single integrated circuit (embedded) and produced a small (micro) controller. There are various examples of micro controllers; each with different basic blocks e.g. Motorola 6805/11, Intel 8031/51, and Microchip PIC16C5X. Each CPU above has its own language and in order to program the engineer has to learn the particular language of his/her computer. Within software engineering the task of programming in machine code (LLL) proved to be very time consuming and a range of compilers were designed to allow the programmer to write a program in HLL and convert it to machine code instructions. Most programs are now coded in a high level language and compiled to the particular LLL required. However for speed/space critical programs, some programs may still have to be encoded in machine code. There are many HLL available e.g. FORTRAN, Pascal, Basic and the most common 'C' and 'C++'. The program is usually stored in the micro-controller, although the microcontrollers are often expandable to allow external EPROM.


Related Discussions:- Definition of a micro controllers

How do you get workflow automation in e-business environment, How do you ge...

How do you get workflow automation into e-business environment? In order to run smoothly, organizations frequently standardize processes across the organization and support use

Ida* search - artificial intelligence, IDA* Search - artificial intelligenc...

IDA* Search - artificial intelligence: A* search is a sophisticated and successful search strategy. In fact, a problem with A* search is that it must keep all states in its me

Program size for different instruction set approaches, Q. Program size for ...

Q. Program size for different Instruction Set Approaches? Assumptions: Complex Instruction is: Add C, A, B having 16 bit addresses and 8 bit data operands All opera

What is a customer-to-business transaction, What is a customer-to-business ...

What is a customer-to-business transaction? C2B (customer-to-business): The most significant activity into e-commerce isn’t selling. That is buying. Rather often which do

What are the types of calendars in a single interface, What are the types o...

What are the types of calendars in a single interface? Member Event calendar helps users manage their personal time, Kept track of meetings with others, and so on. Tea

Explain compiler, What is compiler? A system software program known as ...

What is compiler? A system software program known as a compiler translates the high-level language program into a suitable machine language program having instruction such as t

Dbms, write er diagram for company database

write er diagram for company database

What is a macro, What is a macro ? How it is defined ? Preprocessor' is...

What is a macro ? How it is defined ? Preprocessor' is a translation phase that is applied to  source code before the compiler  proper  gets  its  hands on  it.  Generally,  th

Implementation of BUS, Q. Implementation of BUS Construction of a bus s...

Q. Implementation of BUS Construction of a bus system for four registers employing 4×1 multiplexers is displayed below. Every register has four bits which are numbered 0 throug

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd