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Altera_Forum
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16 years ago

ALT_INBUF_DIFF in cycloneII

is possible in cycloneII device use 2 pins INPUT for differential rs422 signal? In quartus2 the differential buffer for cyclone2 is not allowed!
Altera_Forum's avatar
Altera_Forum
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16 years ago

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ok!! i can now set the vccio value on quartus2.

for you,setting the VCCIO to 2.5 volts(in quartus), but connecting it to 3.3 volts power, the outputs pins (set as 2.5 volts in quartus) will reach the high level of 3.3 volts?

regards

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I'm not sure, but I suppose so.

There's only one way to be sure and that trying it.

Good luck, Ton