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CNash2's avatar
CNash2
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6 years ago

VCC_CLKIN on cyclone iv gx150

If I have single ended CLK inputs 3.3V LVTTL in bank3a, b or 8a, b does it matter what voltage is applied to VCC_CLKIN. I guess it only matters if one of those bank is using a differential input cl...
a_x_h_75's avatar
a_x_h_75
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6 years ago

The threshold at which a clock edge is detected will be derived from VCC_CLKIN. So generally it will matter. However, in your case it shouldn't.

Cheers,

Alex