The indirect decoding method means that the IO interface addressing requires at least two bus operations. The first bus operation outputs and latches the address through the data bus to the address port in the IO interface. The second bus operation can realize the communication of other ports of the IO interface.
举一反三
- Computer system IO interface address decoding can use direct decoding method and indirect decoding method.
- The 89C51 extension parallel three bus refers to the address bus, the data bus and
- Name the three types of bus which are used when external memory is connected to the 8051.( ) A: Address bus B: Control bus C: Data bus D: Enable bus
- Which of the following types of signals does the data bus transmit? A: Data in memory B: Instructions in memory C: Data of IO devices D: Status of IO devices
- 6. 计算机总线按照功能可分为？ A: 地址总线（Address Bus） B: 数据总线（Data Bus） C: 控制总线（Control Bus） D: 系统总线（System Bus）