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Altera_Forum
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18 years ago

Connecting 3.3V IO to 1.2V for pin compatibility

Hi, I am designing a board containing a CycloneII FPGA. I am not sure which part numer i should to use, 35 or 50. These two parts are pin compatible except that some pins are used as VCCINT(...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

If you want to be able to use two different devices in the same place on a board, list the second device at "Assignments --> Device --> Migration Devices". Then use the .pin file to see how to connect the pins. The .pin file will give the allowed/required connection for the pins that are different between the two devices.