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）
内容
- 0
which address signals are used to generate the chip select signal of the memory chip for the one-to-one mapping of the memory chip to the logical storage space of the computer system? A: some of the high-order address signals of the address bus B: the lower-order address signals of the address bus C: all remaining high-order address signals of the address bus D: One of the remaining high-order address signals of the address bus
- 1
A dedicated bus needs address lines.
- 2
In our sample microprocessor, we have an address bus （） bits wide and a data bus （） bits wide. A: 8 B: 4 C: 16 D: 32
- 3
When the memory chip is mapped to the logical storage space of the computer system using a one-to-many overall mapping method, which of the following solutions can be implemented to generate the chip selection signal of the memory chip? A: Decoding of part of high-order address buses B: Decoding of the lower order address buses C: Decoding of all remaining high-order address buses D: One of the remaining high-order address bus
- 4
地址总线AB(Address Bus)的主要作用是什么？