After analyzing the usb device controller function requirements , the thesis divides the system into several sub - modules by the way of top - down 在對usb設備控制器的功能進行詳細的分析后,采用自頂向下的方法劃分系統模塊。
One of the fuzzy controllers functions as speed controller , while the other two function as magnetic thrust controller and magnetic flux controller respectively 1個模糊控制器作為速度控制器,另外2個模糊控制器分別作為電磁推力控制器和磁鏈控制器。
Multiple domain controllers provide automatic backup for user accounts and other active directory data , and they work together to support domain controller functions ( such as validating logons ) . 多個域控制器可以自動備份用戶帳戶和其他activedirectory數據,并一同支持域控制器的功能(例如確認登錄等) 。
Based on these analyses , a more understandable structure of usb was established . secondly , the usb device controller framework was established based on the usb device controller function requirements on clock extracting , protocol layer and data management 其次,針對usb設備控制器的功能要求,從時鐘提取、事件檢測、協議層、數據處理層通信等方面對其進行了結構設計和詳細設計。