USB3_DMA_INT_ENA
usb3_set_bit(usb3, DMA_INT(num), USB3_DMA_INT_ENA);
usb3_clear_bit(usb3, DMA_INT(num), USB3_DMA_INT_ENA);
dma_sta &= usb3_read(usb3, USB3_DMA_INT_ENA);
usb3_write(usb3, 0, USB3_DMA_INT_ENA);