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registered vs non registered?

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player80

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Hi,

can anyone explain what that means:
The data output of the FIFO_DC can be registered or non-registered through a selection in IPexpress. The output registers are enabled by read enable.

what does registered vs non-registered mean in that case?


(it's from the document MemoryUsageGuideforMachXO2Devices)
 

It means you can add a register on the output. It will add a one-clock delay, but may help with timing.
 
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