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If the GPIOs of the DE1 are driven by a 5V system, how bad is this in terms of violating the specs ?
It seems odd that the Cyclone II pins connected to the GPIOs do not have the PCI clamping diode option, when they could use them the most :confused:. So all that is left in terms of 'defense' is the GPIO series resistors ... Any ideas ?Link Copied
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