MVXPE_PANC
reg = MVXPE_READ(sc, MVXPE_PANC);
MVXPE_WRITE(sc, MVXPE_PANC, reg);
reg = MVXPE_READ(sc, MVXPE_PANC);
MVXPE_WRITE(sc, MVXPE_PANC, reg);
MVXPE_WRITE(sc, MVXPE_PANC, reg);