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AR# 11736

4.2i Foundation - Virtex-II, DCM- When I use a DCM on a schematic Virtex-II design, a change in the M and D values does not appear in simulation

Description

Keywords: Virtex-II, DCM, schematic, attribute, clock, divide, CLKDV_, CLKFX_, DIVIDE, MULTIPLY

Urgency: Standard

General Description:
When I use a DCM on a schematic Virtex-II design, and I change the CLKDV_DIVIDE or CLKFX_DIVIDE, the CLKFX_MULTIPLY, etc., the new parameters do not affect the simulation. The simulations are always set to the default vales of M = 4 and D = 1.

Solution

DCM Parameters are contained in the EDIF file in the form of "Property" statements. The Logic Simulator does not does not read these attributes, so it is unable to simulate these parameterized functions.

If you wish to simulate these device features, you must use a different simulator.
AR# 11736
Date Created 06/06/2001
Last Updated 08/11/2003
Status Archive
Type General Article