產品詳情
控制單元(Control Unit)負責程序的流程管理。正如工廠的物流分配部門,控制單元是整個CPU的指揮控制中心,由指令寄存器IR(Instruction Register)、指令譯碼器ID(Instruction Decoder)和操作控制器OC(Operation Controller)三個部件組成,對協(xié)調整個電腦有序工作極為重要。
控制單元可以作為CPU的一部分,也可以安裝于CPU外部。
控制單元,英文Control Unit(CU),是CPU部件之一,有時也安裝與CPU外部。其基本功能是從內存取指令、分析指令和執(zhí)行指令。
控制單元是實現一種或多種控制規(guī)律的控制儀表或控制部件。如:多路傳輸控制單元、代理設置控制單元
無論哪一個種類的控制單元,原理均為通過控制單元發(fā)出的控制信號對CPU各個部分加以控制??刂茊卧篌w可以分為以下兩類。
微程序式,由微程序讀取和發(fā)出控制信號。通過被稱為微型定序器的簡單數字通路(微型電腦)對微程序加以執(zhí)行
硬件型控制單元。由數字通路直接發(fā)出控制信號。由于集成電路的規(guī)模化及設計技術的進步,此種控制單元已成為可能。
它根據用戶預先編好的程序,依次從存儲器中取出各條指令,放在指令寄存器IR中,通過指令譯碼(分析)確定應該進行什么操作,然后通過操作控制器OC,按確定的時序,向相應的部件發(fā)出微操作控制信號。操作控制器OC中主要包括節(jié)拍脈沖發(fā)生器、控制矩陣、時鐘脈沖發(fā)生器、復位電路和啟停電路等控制邏輯
Q Q :3004636837
Tel :0591-87578810
ILA2P571TB2A0
ILA2P571TC1A0
ILA2P571TC1F0
ILA2P571TC2A0
ILA2P572PB1A0
ILA2P572PB1F0
ILA2P572PB2A0
ILA2P572PC1F0
ILA2P572PC2A0
ILA2P572TB1A0
ILA2P572TB1F0
ILA2P572TB2A0
ILA2P572TC2A0
ILA2T571PB1A0
ILA2T571PB1F0
ILA2T571PB2A0
ILA2T571PC1A0
ILA2T571PC1F0
ILA2T571PC2A0
ILA2T571TB1F0
ILA2T571TB2A0
ILA2T571TC1A0
ILA2T571TC1F0
ILA2T571TC2A0
ILA2T572PB1A0
ILA2T572PB1F0
ILA2T572PB2A0
ILA2T572PC1A0
ILA2T572PC1F0
ILA2T572PC2A0
ILA2T572TB1A0
ILA2T572TB1F0
ILA2T572TB2A0
ILA2T572TC1A0
ILA2T572TC1F0
ILA2T572TC2A0
ILE1F661PB1A1
ILE1F661PC1A1
ILE1F661PB1A2
ILE1F661PC1A3
ILE2K661PC1A8
ILE2K661PC1A5
ILE2K661PC1A6
ILE2E662PC1A0
ILE1B661PC1A3
ILE1B661PC1A0
ILE1B661PC1A1
ILE1B661PC1A8
ILE2T661PC1A0
ILE1F661PC1A2
ILE1F661PB1A3
ILE2E661PC1A0
ILE2T661PC1A1
ILE1B661PC1A2
ILE1F661PC1A4
ILE2E661PB1A0
ILE1F661PC1A0
ILE1F661PC1A7
ILE1B661PB1A0
ILE1B661PB1A1
ILE1B661PB1A2
ILE1B661PB1A3
ILE1B661PB1A4
ILE1B661PB1A5
ILE1B661PB1A6
ILE1B661PB1A7
ILE1B661PB1A8
ILE1B661PC1A4
ILE1B661PC1A5
ILE1B661PC1A6
ILE1B661PC1A7
ILE1F661PB1A0
ILE1F661PB1A4
ILE1F661PB1A5
ILE1F661PB1A6
ILE1F661PB1A7
ILE1F661PB1A8
ILE1F661PC1A5
ILE1F661PC1A6
ILE1F661PC1A8
ILE1R661PB1A1
ILE1R661PB1A2
ILE1R661PB1A4
ILE1R661PB1A5
ILE1R661PB1A6
ILE1R661PB1A7
ILE1R661PB1A8
ILE1R661PC1A0
ILE1R661PC1A2
ILE1R661PC1A3
ILE1R661PC1A4
ILE1R661PC1A5