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AR# 4831

COREGEN: Output of Delay Element module does not change in simulation if CE is unconnected

Description


General Description: 
Output of COREGEN Delay Element module does not change in  
simulation.

解决方案


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.
AR# 4831
创建日期 08/21/2007
Last Updated 05/14/2014
状态 Archive
Type 综合文章