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Main classification of controllers
Apr 21, 2017

The controller divides the logic controller and the microcontroller controller, the two controllers have the strengths and weaknesses. Combinatorial logic controller design troubles, complex structure, once the design completes, can no longer be modified or expanded, but it is fast. Micro-Program Controller design convenience, simple structure, modification or expansion is convenient, modify the function of a machine directive, just to reset the corresponding micro-procedures; To add a machine directives, simply add a micro-program to the control memory, but it is through the execution of a micro-process. The concrete contrast is as follows: The combination logic controller is also called the hard wiring controller, is composed of logic circuits, completely relies on hardware to realize the function of instruction.