YOKOGAWA AIP171 控制系统单元模块

控制单元（Control Unit）负责程序的流程管理。正如工厂的物流分配部门，控制单元是整个CPU的指挥控制中心，由指令寄存器IR(Instruction Register)、指令译码器ID(Instruction Decoder)和操作控制器OC(Operation Controller)三个部件组成，对协调整个电脑有序工作极为重要。控制单元可以作为CPU的一部分，也可以安装于CPU外部。控制单元，英文Control Unit（CU），是CPU部件之一，有时也安装与CPU外部。其基本功能是从内存取指令、分析指令和执行指令。控制单元是实现一种或多种控制规律的控制仪表或控制部件。如：多路传输控制单元、代理设置控制单元。

The Control Unit is responsible for process management of the program. Just like the logistics distribution department of the factory, the control unit is the command and control center of the entire CPU, which is composed of three parts: instruction register (IR), Instruction Decoder (ID) and Operation Controller (OC), which is very important for coordinating the orderly operation of computers. The control unit can be part of the CPU or installed externally. Control Unit, also known as Control Unit (CU) in English, is one of the CPU components and is sometimes installed externally to the CPU. Its basic function is to fetch instructions from memory, analyze instructions, and execute instructions. A control unit is a control instrument or component that implements one or more control laws. For example, multiplex transmission control unit and proxy setting control unit.