模可以变计数器。可以实现任意模输入。采用VHDL文本编写。-Mode can be turned counter. Any mode input can be achieved. Text prepared by using VHDL.

vhdl语言和verilog语言转换工具 能很容易的实现两种语言的相互转换-vhdl language and the verilog language conversion tools can easily achieve the conversion of the two languages