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1.4. Flexible Lanes Support
In the current version of the Intel® Quartus® Prime Pro Edition software, the IP parameter editor prompts you to the recommended user clock frequency for the combination of number of lanes and data rates. The software derives the user clock frequency based on the configuration you select. The user clock frequency maps to the tx_usr_clk and rx_usr_clk signals.
Number of Lanes | Data/Lane Rate (Gbps) | Number of Segments | User Clock Frequency (MHz) | |
---|---|---|---|---|
H-tile | E-tile | |||
4 | 6.25 | 1 | 200 | 100 |
12.5 | 200 | |||
25.28 | 400 | |||
25.78 | 400 | |||
25.78125 | 400 | |||
6 | 25.28 | 1, 2 | 300 | |
25.78 | 300 | |||
25.78125 | 300 | |||
8 | 12.5 | 1, 2 | 200 | |
25.28 | 400 | |||
25.78 | 400 | |||
25.78125 | 400 | |||
10 | 12.5 | 1, 2 | 250 | |
25.28 | 1, 2, 4 | 250 | ||
25.78 | 1, 2, 4 | 300 | ||
25.78125 | 1, 2, 4 | 300 | ||
12 | 10.3125 | 1 | 300 | 250 |
2 | 250 | |||
12.5 | 1, 2 | 300 | ||
25.28 | 1 | 350 | ||
2, 4 | 300 | |||
25.78 | 1, 2, 4 | 350 | ||
25.78125 | 1, 2, 4 | 350 | ||
25.5625 (Only in E-tile PAM4 mode IP variations) | 1, 2, 4 | N/A | 350 |