中文版
Description
DAPC100 3ASC25H203 Controller (Controller) refers to the main command device that changes the
wiring of the main circuit or control circuit and changes the resistance value in the circuit to control the start,
speed regulation, braking and reverse of the motor in accordance with the predetermined sequence. Composed
of program counter, instruction register, instruction decoder, timing generator and operation controller, it is the “decision-making
mechanism” of issuing commands, that is,
3ASC25H203
to complete the coordination and command of the operation of the entire computer system, the controller is divided
into combinational logic controller and microprogram controller, the two controllers have their own strengths and weaknesses,
combinational logic controller design trouble, complex structure, Once the design is completed, it can not be modified or expanded,
but its speed is fast, the microprogram controller is convenient in design, simple in structure, easy to modify or
expand, modify the function of a machine instruction, just reprogram the corresponding microprogram, to add a machine
instruction, just add a microprogram in the control memory, but, It is through the execution of a microprogram specific
comparison as follows: the combined logic controller, also known as hard-wired controller, is composed of logic circuits,
completely rely on hardware to achieve the function of the instruction
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