Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 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
Icon for Honored Contributor rankHonored Contributor
15 years ago

I don't think you will damage the device. But like I said before: no guarantee.

Vccio can be set in de pin planner. Make sure the banks are visible with View >> show >> show I/O banks (there's also a pictogram for it).

If you double-click the I/O bank rectangle you'll get the I/O bank proporties.

Success, Ton