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Input and Output parameters (i.e. setup times) from XDELAY don't match those listed in Data Book.


Record #2012

Problem Title:
Input and Output parameters (i.e. setup times) from XDELAY don't match
those listed in Data Book.



Problem Description:
Keywords: Set-up, i/o timing, xdelay

Urgency: Standard

Input and Output parameters (i.e. setup times) from XDELAY
don't match those listed in Data Book.


Solution 1:

Page 4-90 of the 9/96 Data Book states:
"The XACT delay calculator uses this indirect method.  When there is a
descrepancy between the two methods, the values listed below [table in
Data Book] should be used, and the derived values must be ignored."

The above can be relied on because the values in the Data Book
are tested directly.



End of Record #2012