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Altera_Forum
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16 years ago

Use CLKx,DIFFCLK pins in Cyc3 devices as data input pins

CycloneIII Device Family Pin Connection Guidelines says these pins are: Dedicated global clock input pins that can also be used for the positive terminal inputs for differential global clock inpu...
Altera_Forum's avatar
Altera_Forum
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16 years ago

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Hi lanshine,

Yes, you can use the dedicated clock pins as general purpose inputs, but they cannot be used to drive out.

As with most questions like this, the easiest way to figure this out is to throw together a quick test design. I often find this quicker than wading through the documentation. :)

Best regards,

Stephen

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to StephenG:

thanks a lot!!