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AR# 11851

3.1i Virtex-II PAR - Routing from a BUFGMUX to the CLKIN of a DCM uses local routing causing a large skew.

Description

Keywords: PAR, Virtex-II, routing, DCM, local, CLKIN, BUFGMUX

Urgency: Standard

General Description:
The CLKDV output of a DCM goes through a BUFG, and then is to route to the CLKIN of two other DCMs. One of the routes utilizes the Global Clock Tree, while the other utilizes many local lines. This causes a large skew issue.

Solution

This issue has been fixed in the 4.1i software, which was released in September, 2001.
AR# 11851
Date Created 08/29/2007
Last Updated 10/22/2008
Status Archive
Type General Article