what is datapath in MCU

Discussion in 'General Electronics Chat' started by abhimanyu143, Jan 11, 2015.

  1. abhimanyu143

    Thread Starter Member

    Aug 25, 2014
    211
    1
    Hello,
    I am reading this link http://en.wikipedia.org/wiki/Datapath
    Most processors hardware circuits are typically divided into two components: a datapath and a control unit
    processor data path consist with functional block
    Instruction register
    Program counter
    memory address register
    memory data registers

    what is datapath design in MCU ?
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,795
    The path that data flows through, hence the name.
     
  3. Brownout

    Well-Known Member

    Jan 10, 2012
    2,375
    998
    Data in a computing system starts and ends in memory (or I/O). So, think of the path data would take during a processing cycle, it would start in memory, be read into a processor register, then the data will propagate through the ALU where it would undergo some sort of operation (added to a constant, for example) From the ALU, the data would be saved in a different ( or same ) processor register and the finally be written back to memory ( or written to an I/O ) Every component used in that path comprises the data path.
     
  4. abhimanyu143

    Thread Starter Member

    Aug 25, 2014
    211
    1
    what is datapath design in MCU ?
     
  5. WBahn

    Moderator

    Mar 31, 2012
    17,743
    4,795
    It's what an MCU datapath designer does.
     
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