Answers Database
COREGEN: Output of Delay Element module does not change in simulation if CE is unconnected
Record #4831
Product Family: Software
Product Line: Coregen
Product Part: Coregen
Problem Title:
COREGEN: Output of Delay Element module does not change in simulation if CE is unconnected
Problem Description:
Urgency: standard
General Description:
Output of COREGEN Delay Element module does not change in
simulation.
Solution 1:
The Delay Element does not float its CE input to VCC if left
unconnected. The signal tied to this pin is used internally
to activate the WE pin of the RAM used to store the input
to the Delay Element.
CE should always be tied either to VCC or to a control signal
whose logic level is defined--it will not respond to a clock
input unless its CE pin is driven to a logic 1 level.
End of Record #4831 - Last Modified: 10/16/98 11:47 | 
