SRAM and processor frequency

[Yaso]

Hey everyone,

If my RAM operates at 40MHz and my processor at 104MHz. How will this affect my system?

Thanks an advance

 

[barry]

It will explode.



Really, you need to ask a more specific question. But I'll answer your question like it was posted: It won't work. You can't run 40MHz RAM at 104MHz.

 

[Yaso]

The processor itself can work at a frequency as low as 13MHz! Can you please elaborate more at why it won't work? And what additional details do you need so I can be more specific

 

[barry]

40MHz is the maximum clock rate the RAM can operate at reliably. If you try and operate it faster you will violate setup and hold time requirements.

And just because your PROCESSOR is running at 104MHz doesn't mean your memory is running at that speed. With no knowledge of your system it's impossible to say more.

 

[Yaso]

Its a wireless sensor node with an image sensor

 

[barry]

Its a wireless sensor node with an image sensor

That doesn't help.

Is it a Pentium II? an 8080? An ARM? DDR? QDR? Static RAM? Dynamic RAM?

 

[Yaso]

Oh Ok! Its Intel PXA271 and SRAM as my memory

 

[barry]

Oh Ok! Its Intel PXA271 and SRAM as my memory

Synchronous or asynchronous? Geez. I give up.

 

[Yaso]

Will, I asked you from the beginning about the specs that you want from me to mention! Sorry that I just don't know what detail could be helpful or not!! Thanks anyway..

And btw in case you needed anything about the system you can check this: https://web.univ-pau.fr/~cpham/ENSE...A-M2/DOC/Imote2_Hardware_Reference_Manual.pdf