R3_DCNT
if (sc->int_stat2 & R3_DCNT) {
sc->int_stat2 &= ~R3_DCNT;
|| (sc->int_stat2 & (R3_DCNT|R3_SRST|R3_PHC|R3_SPE))) {
if ((sc->int_stat2 & R3_DCNT) && ((sc_intok2 & Rb_DCNT) == 0))