AR# 12653: 4.1i CPLD XC9500XL - "-5" timing values have changed to match data sheet values
AR# 12653
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4.1i CPLD XC9500XL - "-5" timing values have changed to match data sheet values
Description
Keywords: CPLD, XC9500XL, -5, timing
XC9500XL speed grade "-5" timing values have been corrected to match device data sheets.
Solution
The original XC9500XL-5 speed files in 3.1 had overly aggressive tCO and fSYS timing that did not match the published data sheet values. The speed in subsequent software contain the correct values for the parameters.