ZYD_CR_INTERRUPT
(void)zyd_write32(sc, ZYD_CR_INTERRUPT, 0);
if (letoh16(*(uint16_t *)cmd->data) == ZYD_CR_INTERRUPT)
(void)zyd_write32(sc, ZYD_CR_INTERRUPT, ZYD_HWINT_MASK);
(void)zyd_write32(sc, ZYD_CR_INTERRUPT, 0);