Honored Contributor
Honored ContributorOh I see.. by read port you meant the address port. Now I get it.
I'd suggest to use a real signal that you toggle at each clock cycle instead of the 200MHz clock though, I don't know if Timequest would pick up the setup and hold requirements correctly when using a clock as an input signal. It's better to have all the signals (inputs and outputs) on the read port synchronized with the read clock. What options did you select for the memory blocks? According to the datasheet if the read-during-write behaviour is set to "old value" then the memory block is limited to 375MHz. It should be fine with the other settings though. Are your clock constraints set correctly? Does Timequest see all your internal clocks, with the correct frequencies?
