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Cyclone III configuration

Altera_Forum
Honored Contributor II
‎12-20-2010 11:36 AM
1,091 Views

Hi, 

In the Configura Handbook,(referred below,page9–7 ) 

../literature/hb/cfg/config_handbook.pdf  

it mentioned "All I/O inputs must maintain a maximum AC voltage of 4.1 V. " 

I don't know why about this,who can tell me?thank you!
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Altera_Forum
Honored Contributor II
‎12-20-2010 08:09 PM
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Just make sure the voltage at the pin is NEVER bigger than 4.1V

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