We have been looking at the Xilinx simulation models for Virtex 4, both the Rocket IO and the LVDS IO models. I observed that both the SPICE and IBIS models indicating that the models are not validated against hardware. I tried to contact Xilinx to find out if the status has changed and any validation results are available. However, they are not open for business via their website (Webcase) and they are hanging up on the phone support after telling you to go to the website. Does anyone have any measurements to validate the models? Kevin Buchs Mayo Clinic 200 1st St. SW Rochester, MN 55901 buchs.kevin@xxxxxxxx 507-538-5459 http://www.mayo.edu/sppdg ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu