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1. USIO21 Design the instruction system of the machine: specify the types of instructions, the number of instructions and the format and function of each instruction;
2. Preliminary overall design of USIO21: such as register setting, bus arrangement, arithmetic design, connection relationship between components, etc.;
3, USIO21 draw instruction flow chart: mark each instruction at what time, what part to perform what operation;
4, USIO21 scheduling operation schedule: according to the instruction flow chart decomposition of each operation into micro-operations, according to the time period to list the machine should carry out micro-operations;
5, USIO21 lists the microoperation signal expression, simplification, circuit implementation.
Basic composition:
1. The USIO21 instruction repository is used to store executing instructions. The instruction is divided into two parts: the operation code and the address code. The operation code is used to indicate the operation nature of the instruction, such as addition, subtraction, etc. Address code
Give the operand address of this instruction or information about forming the operand address (in this case, the operand address is formed by the address formation circuit). There is a type of instruction called a transfer instruction, which is used to change instructions
The address code section of this instruction gives the address of the instruction to be forwarded to execution.
USIO21 functions mainly include packet exchange and port number management. It is capable of receiving packets and forwarding them from one port to another to enable communication between devices. In addition, USIO21 has multiple ports, often dozens or even hundreds, to support the connection of multiple devices.
USIO21 is also commonly used to create local area networks to connect multiple computers and other network devices in a business, school or home. With USIO21, users can easily create and manage local area networks for fast and efficient data transfer between devices.
In addition, USIO21 also has a remote connection function, which can transfer data over the Internet, making it easier to communicate between remote devices. This feature can be applied to a variety of scenarios, such as remote maintenance and diagnostic services, industrial automation, intelligent manufacturing, etc.
Overall, USIO21 is a powerful network switch that enables efficient data transfer, device connectivity and management for a variety of scenarios that require communication between devices.