DMA_SPECIFIC_CMDBIT
DMA_FASTTRANSFER_CLEAR_A = DMA_CLEAR_CMDBIT | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_CLEAR_B = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_A2B = DMA_RW_CMDBIT | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_B2A = DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_CLEAR_A_NOACK = DMA_CLEAR_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_CLEAR_B_NOACK = DMA_CLEAR_CMDBIT | DMA_RW_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_A2B_NOACK = DMA_RW_CMDBIT | DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,
DMA_FASTTRANSFER_B2A_NOACK = DMA_NOACK_CMD | DMA_SPECIFIC_CMDBIT,