USIO21 TOSHIBA USIO21

USIO21

About us: Toshiba USIO21 new automation module quality policy: quality assurance, reputation first Toshiba USIO21 new automation module business philosophy: market orientation, customer first, skilled, value sharing Toshiba USIO21 new automation module

1, USIO21 design machine instruction system: specify the type of instruction, instruction and the number of each instruction format and function;

2, USIO21 preliminary overall design: such as register Settings, bus arrangement, arithmetic design, the connection between components, etc.;

3, USIO21 drawing instruction flow chart: mark each instruction at what time, what part of what operation;

4, USIO21 arrangement operation schedule: that is, according to the instruction flow chart to decompose each operation into micro operation, according to the time period to list the machine should be carried out micro operation;

5, USIO21 list microoperation signal expression, simplification, circuit implementation.

Basic Components:

1. USIO21 instruction register is used to store the executing instructions. Instructions are divided into two parts: opcodes and address codes. Opcodes are used to indicate the operation nature of instructions, such as addition, subtraction, etc. The ADDRESS CODE GIVES THE OPERAND ADDRESS OF THIS INSTRUCTION OR INFORMATION ABOUT THE OPERAND ADDRESS FORMATION (IN THIS CASE, THE OPERAND ADDRESS IS FORMED THROUGH THE ADDRESS FORMATION CIRCUIT). There are instructions called transfer instructions, which are used to change the normal order of execution of instructions. The address section of such instructions gives the address of the instruction to be transferred to execution.

An automation concept can be complying with the method of centralized or decentralized, and choose depends on whether – networks need certainty of timing, with hard real-time demand growing, distributed design is more superior to concentration, however, change the talking, nor absolute fragmentation distribution and centralization concept, any focus also includes the concept of decentralized structure, And all distributed concepts also have centralized parts. The basic difference is that the expansion of control tasks needs to be redistributed, and the controller is only —–

In contrast, the decentralized concept will control the whole task at the same time. Distributed means that the centralized controller will assume part of the local data processing, intelligent components, however, that also calls for different communication routes instead of.. Those found in automation solutions for centralized organizations.