EMAC_STACR
EMAC_WRITE(sc, EMAC_STACR, sta_reg);
sta_reg = EMAC_READ(sc, EMAC_STACR);
EMAC_WRITE(sc, EMAC_STACR, sta_reg);
if (EMAC_READ(sc, EMAC_STACR) & STACR_PHYE) {
oc = EMAC_READ(sc, EMAC_STACR) & STACR_OC;
oc = EMAC_READ(sc, EMAC_STACR) & STACR_OC;