The internal bus of a computer system can be mainly divided into: control bus, address bus, and data bus.
Data bus: transfers data that needs to be processed or stored back and forth between the CPU and RAM.
Address bus: used to specify the address of data stored in RAM.
Control bus: transmits signals from the microprocessor control unit to peripheral devices.
The information transmitted on the system bus includes data information, address information, and control information. Therefore, the system bus contains buses with three different functions, namely data bus DB (Data Bus) and address bus AB (Address Bus). and control bus CB (Control Bus).
The status of the system bus in the microcomputer is just like the human nervous system. The CPU reads and writes the contents of the memory through the system bus. It also uses the bus to write data in the CPU to peripherals, or by The peripheral reads into the CPU. Microcomputers all use bus structures.
The above is the detailed content of What types of microcomputer system buses are generally divided into?. For more information, please follow other related articles on the PHP Chinese website!