HDAC_SDCTL0
ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);
HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl);
ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);
HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl);
ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);
HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl);
ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);
HDAC_WRITE_1(&sc->mem, off + HDAC_SDCTL0, ctl);
ctl = HDAC_READ_1(&sc->mem, off + HDAC_SDCTL0);