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--- asic:timing:start [2024/03/21 13:25]
rajit [Creating the timing graph]
+++ asic:timing:start [2024/03/21 13:31]
rajit [Creating the timing graph]
@@ Line 41: / Line 41: @@
 {{ :asic:timing:tick_eg1b.png?600 |}}
+Basically the //first// transition that occurs when reset is released tends to have its input edges ticked. Ticks are fungible; if all the inbound edges to a vertex in the timing graph are ticked, that is equivalent (from a timing analysis perspective) to adding a tick to all the outbound edges from the vertex (and eliminating the inbound ticks). While in general an edge could have multiple ticks, Cyclone restricts its attention to timing graphs where each edge has at most one tick. (This can be worked around easily if needed.)
 ==== Reading in parasitics ====
 ===== Power =====