ID15J203-ER
1、控制存储器(contmlMemory)用来存放各机器指令对应的微程序。译码器用来形成机器指令对应的微程序的入口地址。当将一条机器指令对应的微程序的各条微指令逐条取出,并送到微指令寄存器时,其微操作命令也就按事先的设计发出,因而也就完成了一条机器指令的功能。对每一条机器指令都是如此。
2、微指令的宽度直接决定了微程序控制器的宽度。为了简化控制存储器,可采取一些措施来缩短微指令的宽度。如采用字段译码法一级分段译码。显然,微指令的控制字段将大大缩短。,一些要同时产生的微操作命令不能安排在同一个字段中。为了进一步缩短控制字段,还可以将字段译码设计成两级或多级。
联系人:丘伟能(小丘)
电话:0592-5322116
手机:18020776782
Q Q :3171054145
ALLEN BRADLEY 800H-FRXNP16RA7 120V-AC PUSHBUTTON D451416
NEW ALLEN BRADLEY 22DJ4 4000 PHOTOSWITCH MODULE CONTROLLER D335086
RELIANCE 57416-P AUTOMAX REMOTE I/O PLC COMMUNICATION MODULE B312952
GOULD 66573 SHAWMUT POWER DISTRIBUTION TERMINAL 600V-AC CONTROL B204433
NEW BANNER PT400 16415 12-18V-DC 100A AMP SENSOR D441634
GOULD AS-J812-000 J812 REMOTE I/O ADAPTER INTERFACE MODULE B314014
NEW DOMINO 23039 UNIVERSAL SERIAL INTERFACE MODULE PCB CIRCUIT BOARD B209346
NEW THAYER SCALE D-41536D PIC-168 II BOARD PCB TERMINAL D315160
CONTROL TECHNIQUES 02-766250-01 FREQUENCY METER BOARD PCB CIRCUIT BOARD D221463
HONEYWELL 05348000 MEASUREX ADAPTER FLOPPY CABLE PCB CIRCUIT BOARD A B207496
SPECTRUM 2015887 PCB CIRCUIT BOARD D466064
ALLEN BRADLEY 102931 SIGNAL ISOLATOR PCB CIRCUIT BOARD B345370
NEW ALLEN BRADLEY 2090-SCEP1-0 1M FIBER OPTIC CABLE SER A D420413
NEW HONEYWELL BZ-2RQ77 MICRO SWITCH LIMIT SWITCH 480V-AC 1/2HP 15A B311938
NEW OMRON E3S-AT86-D PHOTOELECTRIC SENSOR 10-30V-DC D289578
NEW IFM EFECTOR IM5134 INDUCTIVE SENSOR 10-36V-DC 200MA D288355
HONEYWELL MPV14HD MICROSWITCH 300V-AC 6A AMP MODULAR RELAY D428401
NEW TURCK NI10-G18-AN6X-B1341 PROXIMITY SENSOR D397321
EMERSON 02-776602-10 P/L 1 ELECTRIC INTERLOCK 610 1 PCB CIRCUIT BOARD B421338
NEW OMRON E3S-AR41 PHOTOELECTRIC SENSOR 10-30V-DC D236101