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need advice on microcontroller

Discussion in 'Microcontrollers, Programming and IoT' started by vead, Oct 2, 2013.

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  1. vead

    vead

    473
    14
    Nov 27, 2011
    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 ...........
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    10,768
    2,425
    Nov 17, 2011
    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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