Differences

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--- asic:timing:cells [2023/11/18 20:54] – rajit
+++ asic:timing:cells [2024/05/31 18:37] (current) – rajit
@@ Line 13: / Line 13: @@
 would correspond to the function
 <code>
-function: "~a & ~b | ~(a&b)&c"
+function: "!a*!b + c*!(a*b)"
 </code>
+We use the same approach for latches as well.
+The [[https://github.com/asyncvlsi/actflow|actflow]]  repository includes [[https://csl.yale.edu/~rajit/ps/xcell.pdf|''xcell'']], which is a [[asic:timing:xcell:start|cell library characterization tool]] that generates ''.lib'' files that can be handled by Cyclone. The tool takes a list of ACT cell definitions and runs a large number of SPICE simulations to compute delay and power tables.