Stupid question about FIFO & Register Definition

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AdvaRes

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Hi all,

I feel stupid when asking this question but I have to know that.
I know that FIFO has pointers and the shift register dont.
Can we say that Parallel in parallel out shift register is a FIFO ?
 

Hi AdvaRes,

No, you can't.

When you write data to the FIFO it will immediately available on the output.

In case of parallel in parallel out shift registers you should wait several clocks to have the data available on the output.

Bests,
Tiksan
http://syswip.com/
 

But is it a First in First out ? Why don't we classify it within the FIFO family ?
 

Indeed it is a first in first out but with a BIG latency
 

    AdvaRes

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