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Altera_Forum
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15 years ago

unused pin and Quartus option set

In the cyclone iii Pin Connection Guidelines, some types unused pins are recommended to connnect to VCCIO, and some are recommended to connnect to GND. I have two questions: 1. Which option shoul...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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Choosing ''As input tri-stated with weak pull-up'' should be ok. That's the Quartus standard.

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this is actually dependent on the target device family. for example, Stratix II is default to driving ground. this is an important subtlety, especially when using development kits