RE_ISR_PCS_TIMEOUT
sc->re_rx_ack = RE_ISR_PCS_TIMEOUT;
sc->re_tx_ack = RE_ISR_PCS_TIMEOUT;
if (status & RE_ISR_PCS_TIMEOUT) {
RE_ISR_PCS_TIMEOUT|RE_ISR_SYSTEM_ERR)
RE_ISR_PKT_UNDERRUN | RE_ISR_TDU)) | RE_ISR_PCS_TIMEOUT)