PM861K01 3BSE018105R1 |  處理器單元 | DSRF182AK02 3BSE014078R1

　　型號：PM861K01 3BSE018105R1

　　類別: 處理器單元

　　成色：全新/非全新

　　貨期：現(xiàn)貨

　　質(zhì)保：一年

　　快遞：順豐/德邦

　　產(chǎn)品凈厚度/長度:20.3 厘米

　　產(chǎn)品凈高:15.7 厘米

　　產(chǎn)品凈寬:13.5 厘米

　　產(chǎn)品凈重:1.14 千克

　　處理器單元，通常被稱為中央處理單元(CPU，Central Processing Unit)，是計算機系統(tǒng)的核心和智能部分。它負責控制計算機的行為，執(zhí)行各種任務(wù)。以下是處理器單元的主要組成部分及其功能：

　　控制單元(CU: Control Unit)：

　　指令控制器：PM861K01 3BSE018105R1 負責完成取指令、分析指令等操作，并交給執(zhí)行單元執(zhí)行。

　　時序控制器：包括時鐘發(fā)生器，由石英晶體振蕩器發(fā)出穩(wěn)定的脈沖信號，即CPU的主頻;倍頻定義單元則定義CPU主頻與存儲器頻率的倍數(shù)關(guān)系。

　　總線控制器：PM861K01 3BSE018105R1 控制地址總線、數(shù)據(jù)總線、控制總線等CPU的內(nèi)外部總線。

　　中斷控制器：PM861K01 3BSE018105R1 控制并管理各種中斷請求，根據(jù)優(yōu)先級進行排隊，逐個交給CPU處理。

　　存儲單元(MU: Memory Unit)：

　　通用寄存器：用于傳送和暫存數(shù)據(jù)，也可參與算術(shù)邏輯運算，并保存運算結(jié)果。

　　狀態(tài)寄存器(cpsr)：存放當前指令執(zhí)行結(jié)果的各種狀態(tài)或條件碼，以及控制信息。

　　Cache(緩存)：進行高速數(shù)據(jù)交換的存儲器。

　　Model: PM861K01 3BSE018105R1

　　Category: Processor unit

　　Finish: New/not new

　　Delivery time: from stock

　　Warranty: One year

　　Express: SF Express/Debon

　　Net product thickness/length :20.3 cm

　　Product height :15.7 cm

　　Product width :13.5 cm

　　Net weight :1.14 kg

　　The processor Unit, often referred to as the Central Processing Unit (CPU), is the core and intelligent part of a computer system. It is responsible for controlling the behavior of the computer and performing various tasks. The following are the main components of the processor unit and their functions:

　　Control Unit (CU: Control Unit) :

　　Instruction controller: PM861K01 3BSE018105R1 is responsible for obtaining instructions, analyzing instructions and other operations, and handing them to the execution unit for execution.

　　Timing controller: including a clock generator, the quartz crystal oscillator sends a stable pulse signal, that is, the main frequency of the CPU; The frequency doubling definition unit defines the multiple relationship between CPU frequency and memory frequency.

　　Bus controller: PM861K01 3BSE018105R1 control address bus, data bus, control bus and other internal and external buses of the CPU.

　　Interrupt controller: PM861K01 3BSE018105R1 controls and manages various interrupt requests, queueing them according to priority and passing them to the CPU one by one.

　　Memory Unit (MU: Memory Unit)

　　General purpose register: used to transmit and temporarily store data, can also participate in arithmetic logic operations, and save the results of the operations.

　　Status register (cpsr) : Stores the current instruction execution results of various status or condition codes, as well as control information.

　　Cache: Memory for high-speed data exchange.