PPC322BE HIEE300900R1 处理单元 模块

PPC322BE HIEE300900R1 处理单元 模块

PPC322BE ABB HIEE300900R0001中央处理器（CPU，Central Processing Unit）是一块超大规模的集成电路，是一台计算机的运算核心（Core）和控制核心（ Control Unit）。它的功能主要是解释计算机指令以及处理计算机软件中的数据。
中央处理器主要包括运算器（算术逻辑运算单元，ALU，Arithmetic Logic Unit）和高速缓冲存储器（Cache）及实现它们之间联系的数据（Data）、控制及状态的总线（Bus）。它与内部存储器（Memory）和输入/输出（I/O）设备合称为电子计算机三大核心部件。
CPU从逻辑上可以划分成3个模块，分别是控制单元、运算单元和存储单元，这三部分由CPU内部总线连接起来。
模块划分编辑 播报
PPC322BE ABB HIEE300900R0001要实现一个数字系统需要三个主要的组成部分 ：
（1）计算对位进行操作的函数的组合逻辑（ALU）；
（2）存储位的存储器元素（寄存器）；
（3）控制存储器元素更新的时钟信号。
CPU的根本任务就是执行指令，对计算机来说zui终都是一串由“0”和“1”组成的序列。CPU从逻辑上可以划分成3个模块，分别是控制单元、运算单元和存储单元，这三部分由CPU内部总线连接起来。如下所示：

控制单元
PPC322BE ABB HIEE300900R0001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)等，对协调整个电脑有序工作极为重要。它根据用户预先编好的程序，依次从存储器中取出各条指令，放在指令寄存器IR中，通过指令译码(分析)确定应该进行什么操作，然后通过操作控制器OC，按确定的时序，向相应的部件发出微操作控制信号。操作控制器OC中主要包括节拍脉冲发生器、控制矩阵、时钟脉冲发生器、复位电路和启停电路等控制逻辑。

PPC322BE HIEE300900R1 处理单元 模块

PPC322BE ABB HIEE300900R0001 Central Processing Unit (CPU) is a large scale integrated circuit, is a computer computing Core (Core) and Control Unit (Control Unit). Its main function is to interpret computer instructions and process data in computer software.
The central processing Unit (CPU) mainly consists of Arithmetic (arithmetic Logic unit, ALU, Arithmetic Logic Unit) and Cache (Cache) and the Data, control, and state Bus (Bus) connecting them. It, together with internal Memory (Memory) and input/output (I/O) devices, is called the three core components of electronic computers.
The CPU can be logically divided into three modules, namely the control unit, the computing unit and the storage unit, which are connected by the internal bus of the CPU.
Module division edit broadcast
PPC322BE ABB HIEE300900R0001 To implement a digital system you need three main components:
(1) Compute the combinatorial logic (ALU) of functions that operate on bits;
(2) Memory elements (registers) that store bits;
(3) Clock signal that controls the update of memory elements.
The fundamental task of a CPU is to execute instructions, which to a computer are ultimately a sequence of 0s and 1s. The CPU can be logically divided into three modules, namely the control unit, the computing unit and the storage unit, which are connected by the internal bus of the CPU. As follows:

Control unit
PPC322BE ABB HIEE300900R0001 control unit is the command and control center of the entire CPU. The Instruction Register IR(Instruction Register), instruction Decoder ID(Instruction Decoder) and Operation Controller OC(Operation Controller) are extremely important to coordinate the orderly work of the whole computer. According to the user's pre-programmed program, it takes out each instruction from the memory in turn, puts it in the instruction register IR, determines what operation should be carried out through instruction decoding (analysis), and then sends a microoperation control signal to the corresponding component by operating the controller OC, according to the determined timing. The operation controller OC mainly includes the control logic of beat pulse generator, control matrix, clock pulse generator, reset circuit and power off circuit.

PPC322BE HIEE300900R1 处理单元 模块