03-03-2018 10:16 PM
Could anyone explain the disparity between DIRECT_ENABLE and EXTRACT_ENABLE? In my view, they have the similar functionality.
03-04-2018 05:01 PM
03-05-2018 11:40 AM
Since the question has been posed - has anyone been able to get this property to work?
Normally, I don't really care how synthesis builds logic. But, under certain circumstances, one wishes to force the tools hand a bit.
I've tried the "direct_enable" property - and found it doesn't work at all. I used it, as documented to try and force synthesis to use the"CE" pin of a low-level FF. Every instance I checked however, I found synthesis building the CE via a feedback MUX on the D input.
Or am I misinterpreting what this property is supposed to be doing?