主机通信

• The bus is programable . at this rate the user can program the mcu firmware to configure the correlative registers before using the bus . the user can also change the bus channel in the gpmb when the data of different type is to be transfered . in conclusion , gpmb module provides the communication channel between usb2 . 0 ip core and peripheral
  它提供32位可编程接口，用户可以通过usb2 . 0ip核中的mcu固件对内部相关寄存器进行配置来使用这32位总线，并可以在内部的多总线通道中切换，以达成usb2 . 0ip核对外围接口的控制及数据传输，进而完成设备通过usb2 . 0接口ip核与主机通信的功能。