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Intel: There are HG (High Gain) mode and HDR (High Data Rate) mode in the setting of CTLE, but which setting should be used when using PCIe (PCI Express) IP in Arria® 10 mosquito?
Category: PCI Express
Tools: Quartus® Prime
Device: Arria® 10
When using PCIe IP, HG mode is applied by default, so please use it as it is.
HDR mode is a selectable setting for high bandwidths such as over 17.4Gbps.
Below that, we recommend using HG mode.
(Reference) Intel Arria 10 Transceiver PHY User Guide
https://www.intel.com/content/www/us/en/programmable/documentation/nik1398707230472.html#nik1398707104770
(See section 5.1.5.4. Continuous Time Linear Equalization (CTLE))
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