Field BS reader - burst size in non-m2m mode When BS>1, DMA will transfer for BS times for each request if left NDT is larger than BS, or else transfer for left NDT times. When BS=0 or 1, DMA will always do single transfer for each request. In memory-to-memory mode, BS is ignored.
Field BS writer - burst size in non-m2m mode When BS>1, DMA will transfer for BS times for each request if left NDT is larger than BS, or else transfer for left NDT times. When BS=0 or 1, DMA will always do single transfer for each request. In memory-to-memory mode, BS is ignored.