Altera 100G Interlaken MegaCore Function - Manual (Page 26)

Table 3-1: 100G Interlaken IP Core Supported Combinations of Number of Lanes and Data Rate
Yes indicates a supported combination.
Number of Lanes
Lane Rate (Gbps)
6.25 10.3125 12.5
12 — Yes Yes
24 Yes — —
Meta Frame Length in Words
The Meta frame length in words parameter specifies the length of the meta frame, in 64-bit (8-byte)
words. In the Interlaken specification, this parameter is called the MetaFrameLength parameter.
Smaller values for this parameter shorten the time to achieve lock. Larger values reduce overhead while
transferring data, after lock is achieved.
For simulation, you can set the Meta frame length in words parameter to the value of 128 for fast lane
locking. For hardware testing, Altera recommends that you set the Meta frame length in words
parameter to the value of 2048.
The default value of the Meta frame length in words parameter is 2048.
Data Rate
The Data Rate parameter specifies the data rate on each lane. All lanes have the same data rate (lane rate).
The default value of the Data Rate parameter is 10312.5 Mbps (10.3125 Gbps).
The 100G Interlaken MegaCore function supports various combinations of number of lanes and lane
rates. Ensure that your parameter settings specify a supported combination.
Table 3-2: 100G Interlaken IP Core Supported Combinations of Number of Lanes and Data Rate
Yes indicates a supported combination.
Number of Lanes
Lane Rate (Gbps)
6.25 10.3125 12.5
12 — Yes Yes
24 Yes — —
Transceiver Reference Clock Frequency
The Transceiver reference clock frequency parameter specifies the expected frequency of the
pll_ref_clk
input clock.
3-2 Meta Frame Length in Words
UG-01128
2015.05.04
Altera Corporation 100G Interlaken IP Core Parameter Settings
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