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Visitor anirban1988
Visitor
9,204 Views
Registered: ‎08-20-2014

Spartan 3AN Dual purpose pins

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Does the internal pullup resistors get deactivated upon succesful configuration, on the dual purpose pins?

 

The user manual is a bit confusing.

 

The PUDC_B pin is connected to GND.

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Moderator
Moderator
16,500 Views
Registered: ‎01-15-2008

Re: Spartan 3AN Dual purpose pins

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when pudc_b pin is connected to ground, you will see the user I/O's pulled up during configuration.
 pudc_b is not functional after configuration and also it becomes an user I/O after configuration 

--Krishna

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2 Replies
Xilinx Employee
Xilinx Employee
9,183 Views
Registered: ‎02-14-2014

Re: Spartan 3AN Dual purpose pins

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Hello,

 

Please refer to the Pins with Optional Pull-Up Resistors during Configuration section on page # 64 of below UG

http://www.xilinx.com/support/documentation/user_guides/ug332.pdf 

There seems to be the information which you are looking for

Regards,
Ashish
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Moderator
Moderator
16,501 Views
Registered: ‎01-15-2008

Re: Spartan 3AN Dual purpose pins

Jump to solution

when pudc_b pin is connected to ground, you will see the user I/O's pulled up during configuration.
 pudc_b is not functional after configuration and also it becomes an user I/O after configuration 

--Krishna

0 Kudos