AR #32953 - 11.2 Timing Analysis - Not correctly using attribute CLKFX_MD_MAX in the Clock Uncertainty equation

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11.2 Timing Analysis - Not correctly using attribute CLKFX_MD_MAX in the Clock Uncertainty equation

AR# 32953
Part SW-Timing Analyzer/TRCE
Last Modified 2009-06-26 00:00:00.0
Status Active
Keywords Timing Analysis, TRCE, CLKFX_MD_MAX, DCM

Description

Keywords: Timing Analysis, TRCE, CLKFX_MD_MAX, DCM

The attribute CLKFX_MD_MAX allows the user to specify the maximum ratio of M & D values which can be dynamically programmed so that timing analysis may apply this to the PERIOD constraint's Clock Uncertainty value in the timing report. In 11.2, this attribute is not being used and the specified M & D values are always applied.

When is this going to be fixed?

Solution

This is a known issue. This is scheduled to be fixed in 11.3.
 
 
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