Main
Home  :  Support  :  Answers  :  6.1i, Architecture Wizard, DCM - The 2X feedback is not available for Virtex-II Pro devices. Why?

6.1i, Architecture Wizard, DCM - The 2X feedback is not available for Virtex-II Pro devices. Why?

AR# 19302

Search For Another Answer
Topic DCM Wizard
Last Updated 04/08/2004
Status Active
Description

Keywords: Feedback, 2X, CLK2X, clocking

Urgency: Standard

General Description:
When setting up clocking wizard for a Virtex-II Pro design, clocking wizard does not allow setting the feedback
to "2X". Why?

Solution

The 2X feedback is not supported in Virtex-II Pro Devices. Please refer to (Xilinx Answer 18343) for more information.

This restriction is implemented in the latest 6.2i Service Pack available at:
http://support.xilinx.com/xlnx/xil_sw_updates_home.jsp
The first service pack containing this update is 6.2i Service Pack 2.
 
 
/csi/footer.htm