利用拨码开关为可编程器件输入读写命令和相应的地址、数据，8051读入可编程器件设定的命令字并根据可编程器件的设置进行读写操作，读出来的数据通过P0输出给可编程器件，并由可编程器件控制七段数码管显示。(Verilog+单片机)-DIP switch for the use of programmable devices to read and write command input and the corresponding address, data, read into the programmable device 8051 set the word order and in accordance with programmable device settings for read and write operations, read out the data through P0 output to the programmable device, programmable device controlled by the Seven-Segment LED display. (Verilog+ Singlechip)