cpu-architecture - 内存总线和地址总线的区别

Question

有人可以非常简要地指出计算机体系结构中内存总线和地址总线之间的区别吗？另外，当您说内存总线时，是否暗示您指的是数据总线？

Answer 1

精美解释 here .

In isolation, the microprocessor, the memory and the input/output ports are interesting components, but they cannot do anything useful. In combination, they can form a complete system if they can communicate with each other. This communication is accomplished over bundles of signal wires (known as buses) that connect the parts of the system together.

There are normally three types of bus in any processor system:

• An address bus: this determines the location in memory that the processor will read data from or write data to.
• A data bus: this contains the contents that have been read from the memory location or are to be written into the memory location.
• A control bus: this manages the information flow between components indicating whether the operation is a read or a write and ensuring that the operation happens at the right time.