TMR_CTL_PRESCALER
sc->sc_ctl |= __SHIFTIN(sc->sc_prescaler - 1, TMR_CTL_PRESCALER);
| __SHIFTIN(sc->sc_wdog_prescaler - 1, TMR_CTL_PRESCALER);
| __SHIFTIN(sc->sc_wdog_prescaler - 1, TMR_CTL_PRESCALER);
__SHIFTOUT(sc->sc_wdog_ctl, TMR_CTL_PRESCALER) + 1;