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need advice on microcontroller

vead

Nov 27, 2011
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Nov 27, 2011
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I have read many times that mcu make cpu, ports, clocks, converter and many other device
but when i start to design microcontroller i am confused i don't know where to start
i WANT TO DESIGN 8 BIT MICROCONTROLLER (8051)( FOR PAPER WORK)
I have done some home work

MCU=COMBINATION OF ICs
=CPU+MEMORY+peripheral devices

1)CPU=ALU+CONTROL UNITE
2)MEMORY=RAM+ROM
3)peripheral =PORT+CLOCK+TIMER+.......

when i goes to assemble all i am confused i don't know where to start
anyone tell me what component should i need to know before design
or what basic information should i know before design please share your ideas ...........
 

Harald Kapp

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Nov 17, 2011
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Read this article and / or this one.

Basically I think you are on the right track. A microcontroller is a CPU core plus periphery. What periphery circuits are part of a certain microcontroller varies and is a design decision of the manufacturer.
Some peripherals you will find practically always, like e.g. timer and interrupt controller as they are almost always required.
Other peripherals are foun only on select devices, e.g. A/D circuit, CAN-bus controller etc.
 
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