EBDMA_DCNT
P_WRITE(sc, EBDMA_DCNT, togo);
C_WRITE(sc, EBDMA_DCNT, togo);
P_WRITE(sc, EBDMA_DCNT, (u_long)n);
P_WRITE(sc, EBDMA_DCNT, (u_long)n);
C_WRITE(sc, EBDMA_DCNT, (u_long)n);
C_WRITE(sc, EBDMA_DCNT, (u_long)n);