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<六>信号站按说,信号站也应该属于接口电路的一个部分,只是由于安装位置和执行任务的特殊缘故,人们将它划出来,作为一个相对独立的部分。归纳起来,信号站大致有以下四个任务:1.完成和微机I/O口之间的信息交换和缓冲寄存;2.对从微机发来的设备寻址码进行译码;3.对从监测点送向微机的检测信号进行门控制;4.将必要的信号进行功率放大和电平变换。大多数情况下,信号站设置在远离微机的生产现
<6> The signaling station states that the signal station should also belong to a part of the interface circuit, but because of the installation location and the special nature of the task, people draw it out as a relatively independent part. To sum up, the signal station generally has the following four tasks: 1. Completion and the computer I / O port information exchange and buffer storage; 2. From the computer to address the device addressing code decoding; 3. From Monitoring points sent to the computer detection signal door control; 4. The necessary signal power amplification and level conversion. In most cases, the signal station is set far away from the PC’s production