Definition of on chip bus Inter chip bus Intra bus Definition of an off chip bus

2. Inter-chip bus: also known as component-level bus, it is an information transmission path that connects various chips together to form a specific functional module (such as CPU module).

3. Internal bus: It is an internal structure, which is a common channel for CPU, memory, input and output devices to transmit information.

4. External bus: The bus (bus) refers to the off-chip bus, which is the communication channel between the CPU and the memory RAM, ROM and input and output device interfaces, also known as the system bus.

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1. Bus (bus) is the public communication trunk line that transmits information between various functional components of the computer, it is a transmission harness composed of wires, according to the type of information transmitted by the computer, the bus of the computer can be divided into data bus, address bus and control bus, which are used to transmit data, data address and control signals respectively.

2. The bus is an internal structure, it is a common channel for CPU, memory, input and output devices to transmit information, each component of the host is connected through the bus, and the external equipment is connected with the bus through the corresponding interface circuit, thus forming a computer hardware system. In a computer system, the common channel for transmitting information between various components is called a bus, and a microcomputer uses a bus structure to connect various functional components.

What is a bus

1.A bus is a public communication trunk that transmits information between the various functional parts of a computer. It is a transmission harness made up of wires.

According to the type of information transmitted by the computer, the computer bus can be divided into data bus, address bus and control bus, which are used to transmit data, data address and control signal respectively.

2.The bus is an internal structure. It is a universal channel for CPU, memory, input and output devices to transmit information.

Each part of the host is connected by the bus, and the external equipment is connected with the bus through the corresponding interface circuit, so as to form a computer hardware system. In a computer system, the common path for the transmission of information between the various components is called a bus. Microcomputers use a bus structure to connect various functional components.

System bus reference.

The local bus refers to the bus that exchanges data between a few modules, such as the CPU to the northbridge bus, the memory to the northbridge bus, the protocol of the local bus is generally defined by the device manufacturer, so the CPU of Intel and AMD is not interchangeable, and the protocol of the memory bus of DDR and SDRAM is also different.

Macroscopically speaking, the local bus and the system bus are both buses, used to exchange data, the difference is mainly that the location of the application is different, one is the system level, connecting many devices, and the other is the connection between a few devices. In addition, the protocols they use are different, the protocol of the system bus is more comprehensive, and the protocol of the local bus is more concise, practical and efficient.