AR# 2012: Input and Output parameters (i.e. setup times) from XDELAY don't match those listed in Data Book.
AR# 2012
Input and Output parameters (i.e. setup times) from XDELAY don't match those listed in Data Book.
描述
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.
解决方案
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.