After analyzing the USB Device Controller function requirements, the thesis divides the system into several sub-modules by the way of TOP-DOWN.

在对usb设备控制器的功能进行详细的分析后，采用自顶向下的方法划分系统模块。

youdao

This thesis introduces the design of USB2.0 IP CORE for USB device controller, and mainly about the design of the main controller of the IP CORE.

本文介绍一种USB2.0设备控制芯片IP核的设计，并且主要对其中的主控制器的设计进行介绍。

youdao

To use a USB 3.0 device, you'll need a USB 3.0 controller.

为了使用USB 3.0设备，你将需要一个USB 3.0控制器。

youdao