VTU_PPREG
if (i == VTU_PPREG(sc))
data[i / VTU_PPREG(sc)] |=
data[i / VTU_PPREG(sc)] |=
data[i / VTU_PPREG(sc)] |=
#define VTU_PORT(_sc, p) (((p) % VTU_PPREG(_sc)) * (16 / VTU_PPREG(_sc)))