数控分频器的功能就是当在输入端给定不同输入数据时将对输入的时钟信号有不同的分频比，数控分频器就是计数值可并行预置的加法计数器设计完成，方法是将计数溢出与预置数加载输入信号相接即可。利用QuartusII软件，可以用VHDL语言进行编写程序的放法进行对数控分频器的设计。这里不需要很好的数字电路的知识，只要懂得VHDL语句就可以实现对数字电路功能的设计。-NC divider function is that when given different input data at the input will be the input clock signal has a different divider ratio, NC divider count value preset parallel adder counter design is completed, the method is to count The overflow input signal phase can be loaded with the preset number. Use the QuartusII software, you can write a program using VHDL language release the Design CNC divider. Here does not require a good knowledge of digital circuits, know VHDL statement can be achieved on the design of digital circuit functions.