RT_CLCK_OFF
sc->lm.wzcl = RT_WREN_ON | RT_CLCK_OFF | RT_DATA_OFF;
sc->lm.wocl = RT_WREN_ON | RT_CLCK_OFF | RT_DATA_ON;
sc.lm.wzcl = RT_WREN_ON | RT_CLCK_OFF | RT_DATA_OFF;
sc.lm.wocl = RT_WREN_ON | RT_CLCK_OFF | RT_DATA_ON;