What are the main functions of the controller?
2023-04-19
The main function of the controller is to exchange, detect, and provide signals.
1. Control the machine and control the coordinated operation of various components.
2. The controller has data exchange function, which refers to achieving data exchange between CPUs and controllers, as well as between controllers and devices.
3. If the phone is compared to the human body, then the controller is like the human brain, outputting various instructions and making the parts run flexibly.
4. The arithmetic unit can only perform calculations, while the controller is used to control the entire CPU's operation.
5. Through the data bus, the CPU writes data to or reads data from the controller in parallel.
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