0537 - Ethernet error threshold exceeded

overflow

Number of times the RX FIFO overflowed for frames received.

1

1

CRC errors

Number of frames received or discarded with CRC errors but no framing errors.

1

1

short frame

Number of frames received or discarded with carrier sense or RX-D.V. activity less than the “ShortEventMaxTime” (74-82 bit times).

1

1

oversize frame

Number of receive frames with greater than the 1518 byte maximum frame size.

1

1

terminal count

Receive DMA tried to receive more than the buffer capacity.

1

1

excess collisions

Number of times a frame collided 16 times without successful transmission.

1

1

underflow

Count of transmit underflow errors.

1

1

CS error

Number of times the transmitter had transmit data available and was ready to transmit but had to defer transmission due to carrier sense going HIGH. (Tx defer count in the See data sheet).

n/a

1

alignment error

Number of frames received or discarded with both a framing error and a CRC error.

1

1

very long event

Number of times the transmitter is active for greater than the MAU Jabber Lockup Protection Timer allows ([4-7ms] at 10 Mbit and [0.4 – 0.75ms] at 100 Mb.11 rxerrorNumber of times RXERR is asserted by the Ethernet PHY.

1

1

num_job_q_full

Number of times the net task job queue was full.

1

1

rxerror

Number of times RXERR is asserted by the Ethernet PHY.

1

crcerrs

Number of receive frames with CRC errors.

1

1

algnerrc

Number of receive frames with alignment errors (the frame is not an integer number of bytes in length).

1

1

rxerrc

Number of frames received in which I_RX_ER was asserted by the PHY.

1

1

ecol

When 16 or more collisions have occurred on a frame, this register increments, regardless of the value of collision threshold.

1

1

tncrs

This register counts the number of successful frame transmissions in which the internal carrier sense signal from the PHY was not asserted within one slot time of start of transmission.

n/a

1

tuc

Transmit underrun count.

1

1

rlec

This register counts receive length error events.

1

1

rnbc

The number of times that frames were received when there were no available buffers in host memory to store those frames.

1

1

ruc

This register counts the number of received frames that passed address filtering, and were less than minimum size (64 bytes from <Destination Address> through <CRC>, inclusively), and had a valid CRC.

1

1

roc

This register counts the number of received frames with valid CRC field that passed address filtering, and were greater than maximum size.

1

1