Answers Database

PPR 5.0: TNM placed on a net does not get traced forward to all elements


Record #420

Problem Title:
PPR 5.0: TNM placed on a net does not get traced forward to all elements


Problem Description:



Solution 1:




PROBLEM:	A TNM on a net is not getting traced forward to all the
		elements on that net.

ANSWER:		In XACT 5.0.0 TNM's on nets only trace froward to flip flops.
		The TNM's do not add themselves to logic, RAMS, ROMS, TBUFS
		or LATCHES.  This means that a TNM on a net connected to a
		G pin of a LATCH will not get applied to the LATCH.  This also
		means that the TNM will actually trace forward through any
		LOGIC that may be in the net path UNTIL it finds a FF to
		attach itself to.  The same is true for the WE pin on
		a RAM.






End of Record #420