ET_INTR_RXDMA_XFR_DONE
status |= ET_INTR_RXDMA_XFR_DONE;
if (status & (ET_INTR_RXDMA_XFR_DONE | ET_INTR_TXDMA_ISR)) {
status &= ~(ET_INTR_TXDMA_ISR | ET_INTR_RXDMA_XFR_DONE);