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Honored Contributor
Honored ContributorUnused Transceiver Pins Not Connected to ground
Hello, quick question for the members of the forum. I designed a board using a Cyclone V GX FPGA. I did not use the transceiver pins so I ground all the RX pins and left the TX pins floating. During ...
Altera_ForumHonored Contributor
Honored ContributorPin connection guidelines say connect GXB_RX pins to ground through 10k resistor, either individually or all together. Short traces are suggested.
Sounds like they'll possibly pick up noise, making the receiver stage switching unintended. I don't expect design failure, but may be increased power consumption or some noise coupled to other near by GXB signals.
