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FROM：Mr. Wei

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The CPU controller

A CPU controller consists of hardware, software, and application software. Hardware mainly consists of CPU, memory, processor clock, logic circuit, CPU register, CPU controller and so on. Software mainly consists of CPU processing, operating system and application software. CPU controller can program hardware to realize various functions, is an indispensable core part of a CPU running process. The CPU controller provides various functions and resources required by the hardware in the system to ensure that the system runs safely, stably, and efficiently in various situations. With the development and application of computer technology, CPU controller has become one of the important hardware resources in computer.

I. Introduction to CPU controller

The main function of the CPU controller is to control the CPU and realize the programming execution of the processor on this basis. CPU controller is one of the main components of CPU. In a computer system, the CPU is directly responsible for the entire operation of the computer's hardware system (i.e., the CPU). For a computer, the CPU can determine the efficiency (speed) and performance of the entire computer system. Therefore, whether the CPU runs stably and efficiently is very important for the whole computer system. CPU controller consists of two parts: controller circuit and CPU controller hardware.

Second, CPU controller and CPU composition and function

CPU controller is a software and hardware system with considerable functions. It is a software control system that performs the various functions of the CPU according to the instructions provided by the operating system. A processor controller is a highly integrated structural component that usually includes a bus, clock input and output, logic circuits, and CPU registers. After processing the CPU, the CPU controller sends the data to the processing chip. After high-speed forwarding, the data can be sent to the user machine or storage device. Before implementing some functions, the CPU controller needs to modify the structure of the processor to ensure the rationality of its functions. In the aspect of software control, it is mainly combined with the operating system to achieve various functions inside the processor. CPU controller is a very important part of computer hardware, it is a computer system between the various components of the mutual connection, mutual coordination of the medium rather than the organic whole. Because of this, it makes it possible to program the processor and ensure the normal operation of the whole CPU system.

For a processor, the CPU core unit is the main device on which it executes. It is usually divided into I/O units, logic units, and clock units. The I/O unit is the CPU core unit. Because each processor core has its own operating mode (usually primary key mode, clock mode, register mode, etc.), the I/O unit is the main execution mechanism within the entire processor. The other is the memory unit (data bus) and clock unit (data bus) two more common and important forms. The former is a specialized circuit unit specially designed for CPU core program, such as IO clock circuit, clock unit, etc. The latter are specialized circuit units (memory units) designed specifically for memory operations.

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