What does a microcomputer bus mainly consist of?

The microcomputer bus is mainly composed of a data bus, an address bus and a control bus; the microcomputer bus is a channel for transmitting information between computer modules. Bus technology occupies a very important position in the entire computer system. It plays an important role in the microcomputer. The status is equivalent to the transportation and communication network in modern cities.

The bus of a microcomputer is generally composed of a data bus, an address bus, and a control bus.

Microcomputer bus is a channel for transmitting information between computer modules. Bus technology occupies a very important position in the entire computer system. Its position in microcomputers is equivalent to the transportation and communication network in modern cities. The performance of the bus directly affects the overall performance of the computer. The design of any system and the development of peripheral modules must comply with certain bus specifications.

Introduction

The computer bus is a channel for transmitting information between computer modules. Bus technology occupies a very important position in the entire computer system. Its status in microcomputers Equivalent to the transportation and communication network in modern cities. The performance of the bus directly affects the overall performance of the computer. The design of any system and the development of peripheral modules must comply with certain bus specifications.

Bus technology performance indicators

The so-called bus technology is the communication standard between the CPU and peripherals. It is a very specific communication protocol, including very complex technical indicators and Parameters, as long as these protocols are adhered to in design and manufacturing, it can be well compatible with various peripherals and give full play to the performance of the computer system. The main performance indicators describing bus technology are:

• Bus width: the bit width of the transmission line, which is composed of a data bus, an address bus and a control bus.

• Bus frequency: The number of actions per unit time, that is, the bus operating frequency, in MHz.

• Bus transmission rate: The number of bytes transmitted per unit time, measured in megabytes per second (MB/S).

• Bus compatibility: Whether low-level function cards, software and hardware can be used under the high-level bus structure.

• Bus load capacity: the number of connectable expansion boards.

The bus connects various components in the computer system. A high-performance bus also needs a good manager to function better. The bus management system is responsible for this task. . The task of the bus management system is to free the processor from heavy bus management affairs, take over tasks that do not require the processor's participation, and further improve the processor's work efficiency. In addition, the bus management system also needs to complete DMA and other management to realize parallel operations of the processor and I/O components.

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