USB Endpoint DMA Enable
EP_DMA_EN0 | Control endpoint OUT (DMA cannot be enabled for this endpoint and the EP0_DMA_ENABLE bit value must be 0). |
EP_DMA_EN1 | Control endpoint IN (DMA cannot be enabled for this endpoint and the EP1_DMA_ENABLE bit must be 0). |
EP_DMA_EN | Endpoint xx(2 <= xx <= 31) DMA enable control bit. 0 = No effect. 1 = Enable the DMA operation for endpoint EPxx. |