DMA_CDB_SG_DST2
mult_dst = (dst_cnt - 1) ? DMA_CDB_SG_DST2 :
mult_dst = dst_pos ? DMA_CDB_SG_DST2 :
mult_dst = dst_pos ? DMA_CDB_SG_DST2 : DMA_CDB_SG_DST1;
case DMA_CDB_SG_DST2: