1、控制存儲器（contmlMemory）用來存放各機(jī)器指令對應(yīng)的微程序。譯碼器用來形成機(jī)器指令對應(yīng)的微程序的入口地址。當(dāng)將一條機(jī)器指令對應(yīng)的微程序的各條微指令逐條取出，并送到微指令寄存器時(shí)，其微操作命令也就按事先的設(shè)計(jì)發(fā)出，因而也就完成了一條機(jī)器指令的功能。對每一條機(jī)器指令都是如此。
2、微指令的寬度直接決定了微程序控制器的寬度。為了簡化控制存儲器，可采取一些措施來縮短微指令的寬度。如采用字段譯碼法一級分段譯碼。顯然，微指令的控制字段將大大縮短。，一些要同時(shí)產(chǎn)生的微操作命令不能安排在同一個(gè)字段中。為了進(jìn)一步縮短控制字段，還可以將字段譯碼設(shè)計(jì)成兩級或多級。

想咨詢更多的產(chǎn)品請我！

NEW ACT ADVANCED CONTROL TECHNOLOGIES S2000P S20010BFD2Q FLOAT SWITCH D407040

NEW ABB 57418028N SAFT136CTS CTS CTU CONTROL MODULE REV L CIRCUIT BOARD B394401

NEW FESTO SMTO-4U-NS-S-LED-24 PROXIMITY SWITCH D248381

SQUARE D 0-51839-2 IRCC CONTROL CARD MODULE RELAY B218661

FURNAS 69WR3 10/5 PSI CUT IN/OUT REVERSE ACTION SER B 600V-AC 3HP SWITCH B482858

NEW BANNER S30SP6R EZ-BEAM SELF CONTAINED DC OPERATED 10-30V-DC SENSOR B482847

NEW ACTION INSTRUMENTS V508-5006 DIGITAL INDICATOR PANEL 120VAC METER B221635

WOODHEAD 1300060996 4P MALE STRAIGHT 6FT PVC CORDSET CABLE-WIRE B408721

NEW IFM EFECTOR 7023972 LN 07 50 OM0009 RETRO-REFLECTIVE SENSOR D316315

COMPAQ 004009-001 X03L06922 2 SLOT POWER INPUT MODULE B300791

NEW WESTINGHOUSE 1161540-C AUXILIARY CONTACT TYPE SG RELAY 125V-DC B350968

TURCK NI20-CP40-FDZ30X2 20MM PROXIMITY SENSOR B356554

TAYLOR INSTRUMENT 6251-FIC-34 INDICATING CONTROLLER 117V-AC 10W D363482

HONEYWELL 51108678-100 I/O WDC WREN I PCB CIRCUIT BOARD SER B D363987

NEW ANTUNES CONTROLS 8743130023 SENSOR DFL 120V-AC 15A AMP D270127

RELIANCE 0-51882 IVCA PCB CIRCUIT BOARD B345167

NEW ALLEN BRADLEY 800F-MN3RX22 LED CONTACT MODULE WITH LATCH SER A 24V D363203

NEW AMPHENOL MS25043-28C CAP CONNECTOR D453943

157-A-0514-00F 057-P-0514-00 PCB CIRCUIT BOARD D466431

NEW 1500D41 G01 REV 21 PCB CIRCUIT BOARD D466855

NEW RAM INDUSTRIES KL-4 KEYPAD DISPLAY UNIT PROGRAMMER D448666

MOORE DCA/.25-1.25V/SX2/117AC/-TT DC CURRENT ALARM I/O MODULE 117V-AC B330164

HONEYWELL TC-OAH061 ANALOG OUTPUT MODULE 24V-DC 4-20MA REV J01 B326056

RELIANCE 61C22A 803456-37RC AUTOMATE 120V-AC LOCAL HEAD I/O MODULE B427922

NEW FOXBORO PC10 D0157YN POWER SUPPLY IFD MODEM MODULE 24V-DC B244196

MULTILIN 139-V-FLC 100OHM PLATINUM MOTOR PROTECTION 120V-AC 4-20MA RELAY B397398

NEW CARRIER HH 19ZA 180 120/277V-AC TEMPERATURE SWITCH D481706

NEW ISHIDA P-5458 TFT/IF MODULE PCB CIRCUIT BOARD B292574

CONTRAVES L2B71003B PRINTED MODULE CARD PCB CIRCUIT BOARD B440397

GENERAL ELECTRIC GE PWB 68A993282 A PCB CIRCUIT BOARD B418814

MEASUREX 05343000 PRINTRONIX RS-422 INTERFACE C PCB CIRCUIT BOARD B391349

NEW BETA 307718-1D1C REV B PCB CIRCUIT BOARD D481931

NAMCO EE230-20320 PROXIMITY CYLINDICATOR 1500PSI SENSOR 20-230V-AC/DC B322727

NEW IFM EFECTOR IFA2004-FRKG PROXIMITY INDUCTIVE SENSOR 10-55V-DC D281572

NEW GUARDIAN ELECTRIC A410-362626-12 120V-AC 5A AMP RELAY D397761

NEW ALLEN BRADLEY 889D-F4EC-2 4-PIN FEMALE STRAIGHT CABLE-WIRE D291238

IFM EFECTOR IFK2007-AROA PROXIMITY SWITCH SENSOR 140V-DC 200MA B292138

NEW OPCON 13106AF1217 PHOTOELECTRIC SENSOR 10-30V-DC 1W D334545

NEW NA 85011-L6 0-200 AMPS AC TRANSFORMER PRIMARY PANEL METER D338902

HERION 0801911 PRESSURE SWITCH 250V-AC 6A AMP 3-63BAR D291014

LOT 2 RIS SC-1358 SQUARE ROOT INTEGRATOR SIGNAL CONDITIONER I/O MODULE B393721

GENERAL ELECTRIC GE 26262 G17 STARTER CONTACTOR 115/125V-DC COIL B397571

OPCON 100909-01-01 PCB CIRCUIT BOARD CONTROL MODULE  D207195

MOORE 16210-1-1 RTM RESISTANCE TEMPERATURE MODULE TERMINAL B212907

NEW DREXELBROOK 380-30-12 STABILIZED 30FT CABLE-WIRE B479854

PRESSTECH 7605-0300 01 D 7605-0290 00 PCB CIRCUIT BOARD D220776

FOXBORO P0912CA REV A INTERFACE CONVERTER MODULE D276380

NEW HONEYWELL 1MK1-1PA17 MICRO SWITCH LIMIT SWITCH CONTACT BLOCK D227925

NEW PEPPERL FUCHS CP18D1DPD2 MICROSWITCH SENSOR 10-30V-DC 150MA B230333

NEW ALLEN BRADLEY 74101-371-51 GATE I/F PRINTED PCB CIRCUIT BOARD REV 03 D371696

NEW BANNER Q45BB6RQ5 PHOTOELECTRIC RECIEVER SENSOR 10-30V-DC 250MA D325267

NEW OMRON E2E-X5MF1-M1 INDUCTIVE PROXIMITY SENSOR 12-24V-DC B229618

NEW OMRON 3G2A3-ID411 PROGRAMMABLE CONTROLLER 12-48V-DC I/O MODULE D371335

ALLEN BRADLEY 1771-OBD SER C 10-60V-DC REV D01 OUTPUT MODULE B376520

NEW SQUARE D EK-306-2 KIT ELECTRICAL INTERLOCK FOR 2NO 2NC 60A SWITCH D2 B236643

NEW OMRON E3F-DS10B4 PHOTOELECTRIC SWITCH SENSOR 12-24V-DC D288883

HACH 17250 MINI CONDUCTIVITY TESTER SENSOR KIT METER B212875

NEW YOKOGAWA B9578WJ PCB CIRCUIT BOARD D465084

LEEDS NORTHRUP 046280 8544 REV C PCB CIRCUIT BOARD D465586

6-5060 R07831 R0248 PCB CIRCUIT BOARD D466268

NEW POTTER BRUMFIELD KRP11DN AMF 12V-DC RELAY D371703

BARKSDALE 9048-3 PRESSURE ACTUATED SWITCH 600V-AC 250V-DC B330304

NEW EMECANIQUE XS608B1NAM12 PROXIMITY SENSOR SWITCH 12-48V-DC D284843

NEW SQUARE D 8501 GO 60 CONTROL RELAY SER D 120V-AC 10A AMP D286554

NEW HONEYWELL BZ-RW13-A2 250V-AC 1/4HP SWITCH D431300

NEW ERSCE BL9SB 250V-AC 2-1/2W PILOT LIGHT SOCKET D424761

HONEYWELL P658A1013 ELECTRIC RELAY 2 HP 125/250/277V-AC  B333238

NEW OMNETICS 1MS115A5Y3 TIMER RELAY 115V-AC 1A AMP D296669

MOORE 16190-1-3 EAM MARSHALLED TERMINATION ENHANCED ANALOG MODULE B313826

NEW RELIANCE 86475-10S STACK RECTIFIER D336449

FOXBORO P0400YE I/A SERIES 0-20MA REV F2 I/O MODULE D449283

NEW IDEC LW6MB M1C2MLB BLACK PUSHBUTTON D383730

NEW SULLAIR 02250144-543 NTC 3MT PLASTIC 1 IN TEMPERATURE PROBE B447168

NEW RUSTRAK RR3-1500-4 RANGER III DATA LOGGER 12 CHANNEL B447830

METAR 1156.2-1 SA CONTROL MODULE PLC 13446/B PCB CIRCUIT BOARD B344824

NEW SQUARE D 8501 LM-1 TYPE L OVERLOAD RELAY NEMA A600 TERMINAL BLOCK D278620

MDS 5008696E-F3 BUS TERMINATOR M930 PCB CIRCUIT BOARD D465993

IOR 250RA150 8207 DIODE MODULE THYRISTOR B275491

NEW IDEC RR2P-UL 120V-AC RELAY D423500

NEW SUNX VF-D500T BEAM SENSOR 24-240V-AC 30V-DC 60W 2A AMP D334022

NEW ALLEN BRADLEY 871L-D20EP40-N4 PROXIMITY SWITCH SENSOR SER A 60V-DC D286241

NEW TURCK BI10-M30T-AZ3X PROXIMITY 20-250V-AC 10-300V-DC SENSOR D287131

NEW BALLUFF BES0298 BES 516-213-E5-E-S5 PROXIMITY SENSOR 250V-AC/DC D277032

NEW REGENT CONTROLS TM2200-1S-24 SOLID STATE TIMER 24V-DC 24W 1A AMP D296606

NEW IFM EFECTOR FT30PAM8 FIBER OPTIC CABLE 23-1/4IN LONG SENSOR D393277

ALLEN BRADLEY 800T-PB16 ILLUMINATED MUSHROOM HEAD 120V-AC PUSHBUTTON B465129

RELIANCE 0-51486-19 POWER SUPPLY MODULE PCB CIRCUIT BOARD B309840

NEW IFM EFECTOR E20997 EFECTOR 200 SYSTEM COMPONENT REFLECTOR SENSOR D302689

COMPAQ 000161-000 VDU GA2 SCHEMATIC MODULE CONTROLLER CONTROL B201216

ACCUWEB MM1040 SINGLE PHASE ELECTRONIC WEB GUIDE CONTROLLER 120V-AC B344040

BAILEY 6637804CI RACK MODULE PLC CARD PCB CIRCUIT BOARD B218774

CROUSE HINDS E1017-377 FEMALE CABLE 600V-AC 690A AMP CONNECTOR D372477

LOMA ENGINEERING IQ2 IN-LINE METAL DETECTION SYSTEM B372884

ALLEN BRADLEY 1756-PB72 CONTROLLOGIX C 18-32V-DC 10A AMP POWER SUPPLY B417647

ALLEN BRADLEY 809-A07E TRIP CURRENT L A 600V-AC 16A AMP RELAY B417427

NEW ISHIDA P-5439B 116-3481-06 PWB CONTROL MODULE PCB CIRCUIT BOARD B364372

NEW ISHIDA P-5439B 116-3481-06 PWB CONTROL MODULE PCB CIRCUIT BOARD B364372

NEW MAGNETEK SBPU-B 2 BUTTON ON/OFF SWITCH D448455

MEASUREX 08488601 JC20195 4886 HONEYWELL I/O COMM. POWER SUPPLY REV B B266667

NEW YOKOGAWA 103131LSZZ 0-800A AMP AC PANEL METER 0-5A AMP B336267

ALLEN BRADLEY 800E-A2L SER A 800V-AC PUSHBUTTON D468394

GE FANUC IC3600APAB1 POWER AMPLIFIER CARD PCB CIRCUIT BOARD B346811

STI RM-X 40152 COMPACT SAFETY MODULE TOP ASSEMBLYB351374

NEW CINCINNATI ELECTROSYSTEMS 815-501 ADAPTER BOARD REV B D266025

183087 PCB CIRCUIT BOARD D466009

NEW ALLEN BRADLEY 800T-P56 TYPE-4/13 PILOT LIGHT SER T 600V-AC B285469

NEW DENNISON 85069-01 3100-1 85071 POWER SUPPLY PCB CIRCUIT BOARD D213408

WILKERSON MM4300 MIGHTY MODULE TRANSMITTER RELAY D472204

ENERGY INCORPORATED 00672-2 120V-AC 10/5/1V-DC 75MV-DC POWER SUPPLY D481757

OMRON CQM1-ID212 50 CH 16 POINTS INPUT MODULE 24V-DC 6MA B227022

HONEYWELL 535-007 535 ELECTRO-PNEUMATIC CALIBRATOR DC MEASURE B331700

NEW ALLEN BRADLEY 1794-PS1 FLEX I/O POWER SUPPLY SER A 24V-DC D344210

CRAMER 635K-AA 113GH200-D 6 DIGIT HOUR INDICATOR 1/20RPM COUNTER 115V-AC B344403

HONEYWELL 60144916-001 BCMMST4A SCANNER CONTROL PCB CIRCUIT BOARD B218497

NEW INTERCON 44C742241-004R02 W/ CONNECTORS ASSEMBLY CABLE-WIRE D474041

ALLEN BRADLEY 813S-VOB LINE VOLTAGE MONITOR SER A 480V-AC 30A AMP RELAY D483360

NEW IFM EFECTOR IS-3002-APOG IS5002 INDUCTIVE SENSOR D442246

NATIONAL ELECTRONICS NL-635P/6930 VINTAGE VACUUM TUBE D297929

2B8406 PCB CIRCUIT BOARD D467497

WESTINGHOUSE 3A99211G02 MODULE POWER SUPPLY D465326

GENERAL ELECTRIC GE FANUC IC3600STDC1H RELAY MODULE PCB CIRCUIT BOARD B346771

NEW ALLEN BRADLEY 700-BX220A1 RELAY SER A 120V-AC D356567

NEW FOOD INSTRUMENT 102A350-A CABLE C-1A SENSOR D350495

NEW TURCK RKM 30-6M/S90 U2031-1 MINI-FAST 6M LENGTH 3-PIN FEMALE CABLE D300160

NEW PHOENIX 1699973 SAC-3P-10,0-PUR/BI-1L-S180 ACTUATOR/SENSOR CABLE D255681

TURCK BI2-G12-AP6X INDUCTIVE PROXIMITY SWITCH SENSOR 10-30V-DC 200MA B354326

NEW BALLUFF BES 516-327-B0-C PROXIMITY INDUCTIVE 10MM SENSOR 10-30V-DC B211073

NEW TURCK BI5-G18-AP6X-50MM 4641400 PROXIMITY SENSOR 10-30V-DC 200MA D309738

NEW HOMEWOOD OT1D2AM 178C190G03 PUSHBUTTON 600V-AC D359794

NEW TURCK NI10-G18-AN7X 50MM INDUCTIVE SENSOR 10-30V-DC 150MA D363383

NEW TURCK WK4.4T-1.5-WS4.4T U2434-1 CABLE-WIRE 250V-AC 4A AMP D365700

NEW SICK IM12-02BPS-ZW1 6011963 PROXIMITY SWITCH 10-30V-DC 200MA D319081

NEW IFM EFECTOR IE5207 IEB2001-AROG PROXIMITY SWITCH SENSOR 10-36V-DC D303415

NEW IFM EFECTOR IE5193 IEC2002-AROG INDUCTIVE PROXIMITY SWITCH 10-36V-DC D305131

NEW PECO CONTROLS C3006 M.O. 0315 MOTION CONTROL MODULE 117V-AC 140MA D260731

NEW TURCK CKFLV 12-12-1 SENSOR WIRE CABLE CORDSET ASSMEBLY 300V-AC 6A D213762

TURCK BI5U-M18-AN4X-H1141 PROXIMITY SWITCH SENSOR 10-65V-DC 200MA B275476

NEW SQUARE D 9001KXRG137 110-120V-AC DUAL PUSHBUTTON D429035

UE UNITED ELECTRIC J21K 232 9559 DIFFERENTIAL PRESSURE SWITCH 250V-AC D289602

NEW ALLEN BRADLEY 50917 SIGNAL CONDITIONER MODULE CIRCUIT BOARD REV 03 D212780

NEW SQUARE D 9001 KU-17 CLEAR SELECTOR SWITCH BOOT F B266652

SCHNEIDER TSXDST2472 OUTPUT MODULE 24V-DC 0.5A AMP D317532

NEW GENERAL ELECTRIC CR104PSG85B92 3 POSITION SELECTOR BLACK CAP SWITCH B279968

GENERAL ELECTRIC GE 644841 DIN RAIL BUSBAR 16MM 240/415V-AC TERMINAL B480124