Altera Low Latency 40-Gbps Ethernet MAC and PHY MegaCore Function - Manual (Page 183)

Property Low Latency 40-100GbE IP Core 40-100GbE IP Core v14.0
Duplex mode Full duplex mode RX-only, TX-only, or full duplex
mode
MAC client interface Avalon-ST interface or new,
different custom streaming interface
Avalon-ST interface or custom
streaming interface
CAUI–4 variations Available for Arria 10 GT devices Available for Stratix V GT
devices
4 × 6.25 variations Not currently available Available for all supported
devices
40GBASE-KR4 variations Available for Arria 10 devices Available for Stratix V devices
Statistics counters RX statistics counters are configu‐
rable (turned on or off) in the
parameter editor, and TX statistics
counters are configurable in the
parameter editor, with two separate
parameters
Software clears all RX or all TX
statistics counters at one time with a
dedicated configuration register.
Reading a statistics register does not
affect its value.
RX and TX statistics counters are
all available, or no statistics
counters are available. Configu‐
rable in the parameter editor.
Programmable bits in
MAC_CMD_
CONFIG
register determine
whether reading a statistics
register resets it to zero.
Statistics counter increment
vectors
Available
Four additional RX statistics
counter increment vectors and two
new counters for number of bytes in
non-errored RX frames and number
of bytes in non-errored TX frames
Available
Synchronous Ethernet support Available Available
Preamble pass-through mode Linked RX and TX preamble pass-
through modes turned on or off in
parameter editor. The RX and TX
modes cannot be turned on or off
individually and the mode cannot
be dynamically configured.
RX and TX preamble pass-
through modes individually
dynamically configurable
(programmable).
RX filtering Programmable option to filter pause
frames only
Programmable options for many
RX filtering options, including
destination address filtering
C-2 Differences Between Low Latency 40-100GbE IP Core and 40-100GbE IP Core v15.0
UG-01172
2015.05.04
Altera Corporation Differences Between Low Latency 40-100GbE IP Core and 40-100GbE IP Core v15.0
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