Altera Low Latency 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual
Page 81

Name
Signal
Direction
Description
tx_inc_sizeok_
fcserr
Output
Asserted for one cycle when a valid TX frame with FCS errors is
transmitted.
RX Statistics Counter Increment Vectors
rx_inc_runt
Output
Asserted for one cycle when an RX runt packet is received.
rx_inc_64
Output
Asserted for one cycle when a 64-byte RX frame is received.
rx_inc_127
Output
Asserted for one cycle when a 65–127 byte RX frame is received.
rx_inc_255
Output
Asserted for one cycle when a 128–255 byte RX frame is received.
rx_inc_511
Output
Asserted for one cycle when a 256–511 byte RX frame is received.
rx_inc_1023
Output
Asserted for one cycle when a 512–1023 byte RX frame is received.
rx_inc_1518
Output
Asserted for one cycle when a 1024–1518 byte RX frame is received.
rx_inc_max
Output
Asserted for one cycle when a maximum-size RX frame is received.
You program the maximum number of bytes in the
MAX_RX_SIZE_
CONFIG
register.
rx_inc_over
Output
Asserted for one cycle when an oversized RX frame is received.
You program the maximum number of bytes in the
MAX_RX_SIZE_
CONFIG
register.
rx_inc_mcast_
data_err
Output
Asserted for one cycle when an errored multicast RX frame, excluding
control frames, is received.
rx_inc_mcast_
data_ok
Output
Asserted for one cycle when valid a multicast RX frame, excluding
control frames, is received.
rx_inc_bcast_
data_err
Output
Asserted for one cycle when an errored broadcast RX frame, excluding
control frames, is received.
rx_inc_bcast_
data_ok
Output
Asserted for one cycle when a valid broadcast RX frame, excluding
control frames, is received.
rx_inc_ucast_
data_err
Output
Asserted for one cycle when an errored unicast RX frame, excluding
control frames, is received.
3-36
Statistics Counters Interface
UG-01172
2015.05.04
Altera Corporation
Functional Description