Unused Stratix IV Transceivers

Yes. It says to tie all the RX_P pins to GND through a 10kOhm resistor and the RX_N pins to GND through a 2nd 10kOhm resistor. What's strange is that you can tie the REFCLK_P/N pins together and use a single 10kOhm resistor. That's based upon the Stratix IV guidelines 1.5 but it's still watermarked as preliminary. I don't know how you can have a chip that's been released for over a year and still have preliminary documents.