Thanks Raghu & Paul

I downloaded Flash Magic,Kiel, pinancle software Philips AN 461 etc.

Soldered the components as per the application notes. For a moment, I became the happiest person in the world when flash magic detected this wonderful chip. I did't fiddled around further.I need to learn more about the data sheet, application notes and assembly language.

I ve decided to include the following:- Digital Input/Outputs in my project.Hope this ucontroller will do the job.

DI
-Off push button
-On push button
-Temperature Switch
-Pressure Switch for cut in/out
_Motor safety switch

DO
Relays:
-K1 for motor safety ckt
-K2 for safety circuit
-K3 for aux relay for main contactor
-K main contactor
-LCD
+ key pad

I will not touch analog part .
Here I need help from you guys for the following:-

How I can eleminate these external relays ? As Mr. Michael wrote " u can write programs for running on the microcontroller to capture virtually any logical control alogorithm that you desire. There are limitations of course. Your program cannot exceed the size of the memory available to hold it. The data variables, state flags, and so forth cannot exceed the size of the read/writable RAM available, and for any given processor there is a limit to upper end of how fast you can make an algorithm loop."

Please explain it in a simple language so that I can also make use of it.

I am convinced and confident that 8052 forum people will make
my dream come true. I just can't believe it that I am really in this.

In second phase I like to create a user interface ( I have boought,
LCD 2X16 characters and 16 digit matrix keyboard where operater can check and change the settings. Thanks

Rashu