英语翻译本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环

英语翻译本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环
英语翻译
本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮,倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出,显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示.本系统实用性强、操作简单、扩展功能强.

英语翻译本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器,实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环
The present system MSC-51 series single-chip programmable ATSC51 and parallel I / O interface chip 8255A-centric device designed to control traffic lights,can be achieved on the basis of actual traffic through the 8051 chip set up the mouth of the P1 red,green fuel Liang function of time; traffic lights to light up the cycle,the countdown 5 seconds left when the yellow light flashing a warning (traffic light signals through the mouth PA output,indicating the time directly through the PC's 8255 output port to double-digital control); red light vehicle alarm; green time Traffic can be detected through a double-digital tube display.The system practical,easy to operate,Strong expansion of functions.

This system uses MSC-51 series monolithic integrated circuit ATSC51 and programmable parallel I/O connection chip 8255A is the central component designs the traffic light controller, realized has been...

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This system uses MSC-51 series monolithic integrated circuit ATSC51 and programmable parallel I/O connection chip 8255A is the central component designs the traffic light controller, realized has been able to act according to the actual traffic flow magnitude to establish, the green light through 8051 chip P1 mouths to burn the bright time red the function; The traffic light circulation lightens, the countdown remains when 5 seconds yellow light twinkle caution (traffic light signal through PA mouth output, tell time directly through 8255 PC mouth output to two-position nixietube); The vehicles run a red light the warning; The green time may examine the traffic flow magnitude and may through the two-position nixietube demonstration. This system usability is strong, simplicity of operator, extended function.

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