This mcu is described by using verilog hardware design language and designed in the way from top to down . many crossed architecture programs are used to test the source programs of the improving mcu 本設計中采用硬件描述語言verilog及自頂而下( top - down )的設計方法設計了改進型微控制器,通過搭建驗證平臺,采用交叉的驗證方案對該mcu進行了驗證。