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

DISCRETE STRUCTURES, SET 2I OF ALL INTEGERS WITH ZERO IS AN ABELIAN GROUP

SET 2I OF ALL INTEGERS WITH ZERO IS AN ABELIAN GROUP

Loop level-levels of parallel processing, Loop Level At this level, rep...

Loop Level At this level, repeated loop iterations are the applicants for parallel execution. However, data dependencies among subsequent iterations may limit parallel executio

Queueing process, explain in detail about queueing process

explain in detail about queueing process

Explain the while loop in c, Explain The while loop in C The while loop...

Explain The while loop in C The while loop keeps repeating an action until an associated test returns false. This is useful where the programmer does not know in advance how ma

Explain parameter passing in procedures, Q. Explain Parameter Passing in Pr...

Q. Explain Parameter Passing in Procedures? Parameter passing is a very vital concept in assembly language. It makes assembly procedures more general. Parameter can be passed t

Explain about the cathode ray tube technology, Cathode Ray Tube Technology ...

Cathode Ray Tube Technology (CRT) CRT is an analog device that is used by a digital device - computer. The interface between these two devices is described. The major component

Html 4.0 element, , an HTML 4.0 element supported by Netscape6 and MSIE, de...

, an HTML 4.0 element supported by Netscape6 and MSIE, defines a set of text which is associated with a specific form element. For illustration, code belo

How do you decide which integer type to use, It depends on our requirement....

It depends on our requirement. When we are needed an integer to be stored in 1 byte (means less than or equal to 255) we use short int, for 2 bytes we use int, for 8 bytes we use l

Determine about the verilog task, Determine about the Verilog Task - Ta...

Determine about the Verilog Task - Tasks are capable of enabling a function as well as enabling other versions of a Task. - Tasks also run with a zero simulation however the

What do you mean by rad, a. What are the activities included during the pro...

a. What are the activities included during the process of developing a formal specification of a sub-system interface? b. Explain the Pair Programming? What are the benefits of

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