AR_INTR_SYNC_ENABLE
REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
(void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
REG_WRITE(ah, AR_INTR_SYNC_ENABLE,