address bus 同controll bus ge作用系咩野?????
address bus 同controll bus ge作用系咩野?????有冇人答我,我唔系好明~~
- ?Lv 61 十年前最愛解答
A control bus is (part of) a computer bus, used by CPUs for communicating with other devices within the computer. While the address bus carries the information on which device the CPU is communicating with and the data bus carries the actual data being processed, the control bus carries commands from the CPU and returns status signals from the devices, for example if the data is being read or written to the device the appropriate line (read or write) will be active (logic zero).
An address bus is (part of) a computer bus, used by CPUs or DMA-capable units for communicating the physical addresses of computer memory elements/locations that the requesting unit wants to access (read/write).
簡單黎講，CPU 就是靠 Control Bus (控制匯流排) 的指揮，到 Address Bus (位址匯流排)上指定的位址，存取 Data Bus (資料匯流排)上的資料．資料來源： 個人理解，及整理自維基百科