CAS_PCS_SERDES_CTRL
CAS_WRITE_4(sc, CAS_PCS_SERDES_CTRL,
CAS_WRITE_4(sc, CAS_PCS_SERDES_CTRL, CAS_PCS_SERDES_CTRL_ESD);
CAS_BARRIER(sc, CAS_PCS_SERDES_CTRL, 4,