mask / * Mask bit * / 

Member write mask bits. The bits specified by the following constants are not written (set). Multiple specification by logical sum is possible.

Constant	Description
DMA_SCU_M_DXR	Read address
DMA_SCU_M_DXW	Write address
DMA_SCU_M_DXC	Bytes transferred
DMA_SCU_M_DXAD_R	Read address addition value
DMA_SCU_M_DXAD_W	Added write address
DMA_SCU_M_DXMOD	Mode bits
DMA_SCU_M_DXRUP	Read address update bit
DMA_SCU_M_DXWUP	Write address update bit
DMA_SCU_M_DXFT	Start factor selection bit