PMGC0_PMIE
mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
mtpmr(PMRN_PMGC0, PMGC0_PMIE | PMGC0_FCECE);
mtpmr(PMRN_PMGC0, PMGC0_PMIE | PMGC0_FCECE);
ctrl |= PMGC0_PMIE | PMGC0_FCECE;
ctrl &= ~(PMGC0_PMIE | PMGC0_FCECE);