Intel: Cyclone® V uses PCI Express. I am supplying 100 MHz Refclk to the FPGA, but what about the external coupling and I/O standard?

PCI Express board

Category: PCI-Express
tool:-
Device: Cyclone® V


<About coupling>
Although it depends on the Clock IC specs, select DC Coupling when using the HCSL standard.
For LVDS, implement AC Coupling.
Please refer to the Clock IC Data Sheet for the configuration diagram.
(Even in the case of the HCSL standard, there are devices that require termination processing outside the Clock IC and devices that can be directly connected to FPGA.)

<About I/O Standard>
Select the same I/O Standard in Tool according to the standard such as HCSL or LVDS selected above.


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