AR# 11904


Virtex, Virtex-E LogiCORE PCI - Can a Virtex-II or Virtex-E device be interfaced with a PCI 5V environment?


General Description:

Virtex-II and Virtex-E devices are not 5V-tolerant. Given this, can these devices be used in a 5V PCI system?


It is not possible to use a Virtex-E or Virtex-II device in a 5V PCI environment and still maintain strict PCI compliance. There is no way to work around this that will enable the use of a Virtex-II or Virtex-E in a 5V environment while maintaining PCI compliance.

However, if you do not need to maintain PCI compliance, it may be possible to use a bus switch to interface the Virtex-II or Virtex-E device to the 5V PCI bus. The resulting design is not PCI-compliant. Therefore, Xilinx cannot and will not guarantee that this solution will work for you, especially in an open system that expects add-in cards to be fully compliant.

For more information, please see Xilinx Application Note 646: "Connecting Virtex-II Devices to a 3.3V/5V PCI Bus" (Xilinx XAPP646).

AR# 11904
Date 12/15/2012
Status Active
Type General Article
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