Asked Mar 11, 2020

Explain mapping the main control function to gates.


Expert Answer

Step 1: Mapping the main control function to gates
  • The most common way to develop a control function is a structure called Programmable Logic Array (PLA).
  • The control function is very easy as it is not large and difficult.
  • Therefore, it is reasonable to implement the main control function with a group of gates which are unstructured.
  • The PLA contains an array of programmable AND gates that connect to an array of programmable OR gates.
  • The inputs of programmable AND gates are the inputs of function and their inverses.
  • The output of programmable AND gates is the inputs of programmable OR gates.
  • The number of logic gates might be ...

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