NETSEC_IRQ_TX
NETSEC_IRQ_RX | NETSEC_IRQ_TX);
if (status & NETSEC_IRQ_TX) {
netsec_write(priv, NETSEC_REG_INTEN_CLR, NETSEC_IRQ_RX | NETSEC_IRQ_TX);
netsec_write(priv, NETSEC_REG_INTEN_SET, NETSEC_IRQ_RX | NETSEC_IRQ_TX);