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Does the Stratix IV GX PCI Express Hard IP support Lane Reversal?

PCI Express

Yes.

Please refer to each combination by searching for the keywords “Lane Initialization and Reversal” in the user guide at the URL link below.

https://www.altera.com/en_US/pdfs/literature/ug/ug_pci_express.pdf

Table 9-5.Lane Assignments with Reversal is the replacement pattern, for example
- Core Config : 4
- Slot Size : 4
, the swapping of 2:1 (lane2 and lane1) and 3:0 (lane3 and lane0) is automatically recognized.


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