| 术语 | parallel input/output card |
| 释义 | parallel input/output card 并行输入输出插件板 A typical input/output card which has the necessary handshake flags for conventional parallel interface and contains all the required addressing circuitry to allow each card to be addressed anywhere from location to location. In some system, both input and output data have their own 8 bit latch for buffering, including necessary logic to allow an adjacent channel to be a control channel. Thus,adjacent channels can be used to set up flags and, also clear flags and interrupts. 一种典型的输入输出插件板,带有普通并行接口所必需的信号交换标志, 以及所需的寻址电路,使得每个插件板可以在任何地方逐个单元寻址。在某些系统中, 输入和输出数据都有它们自己的作为缓冲用的8位锁存器,其中包括必要的逻辑电路, 以允许相邻通道作为控制通道。这样,相邻通道可以用来设备标志,也可以用来清除标志和中断。 |
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