what is datapath in MCU

Thread Starter


Joined Aug 25, 2014
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 ?


Joined Jan 10, 2012
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.