DP8573A_TIMESAVE_CTL
i = readreg(sc, DP8573A_TIMESAVE_CTL);
writereg(sc, DP8573A_TIMESAVE_CTL, j);
writereg(sc, DP8573A_TIMESAVE_CTL, i);
i = readreg(sc, DP8573A_TIMESAVE_CTL);
writereg(sc, DP8573A_TIMESAVE_CTL, j);
writereg(sc, DP8573A_TIMESAVE_CTL, i);