This has code off multibit Adder. IT is written in verilog. The associated test bench for the verilog code is also attatched within the rar file. Uncompress the rar file and the file name describes the function of each

一个经典的宽带多位sigma delta调制器设计，较为好用-More than a classic sigma delta modulator broadband design, the more useful

《圈圈教你玩USB》，市面流传的多位精简版，此为完整版本，25M-@@teach you to play USB" , rumor multibit Lite, this is the full version, 25M