The application has access to each pipe/endpoint FIFO through its reserved 32 KB address space. The application can access a 64-KB buffer linearly or fixedly as the DPRAM address increment is fully handled by hardware. Byte, half-word and word accesses are supported. Data should be accessed in a big-endian way.
Disabling the USBHS (by writing a zero to the USBHS_CTRL.USBE bit) does not reset the DPRAM.