Occasional Contributor
Occasional ContributorIt is combinatorial logic.
When using set_max_delay and set_min_delay between the ports, there isn't an internal path between the two. How does the max_delay then apply for that? I called it Tco because I was looking at Intel Design examples and all of the internal device delays were Tco so I decided to call it the same just to be consistent, doesn't really make sense in this case if you know what CO stands for.
Super Contributor[Edited]
I think use set_max_delay and set_min_delay between the output and input ports means like below (tsu, th, tco(max/min) are external device value):
Input Ports:
set_max_delay -from [get_ports {<input>}] [board delay(max)+<Tco_Requirement>]
set_min_delay -from [get_ports {< input >}] [board delay(min)+<MinTco_Requirement>]
Output Ports:
set_max_delay -to [get_ports {<output>}] [board delay(max)+<Tsu_Requirement>]
set_min_delay -to [get_ports {<output>}] [board delay(min)-<Th_Requirement>]
Super ContributorI think you may ignore the above as combinatorial logic don't have tsu and th. Sorry for confusing
