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Visitor
washix
Posts: 7
Registered: ‎08-30-2009
0

Problem with CPLD Unused IO!!!

HalloO

I'm using the XC95144XL for a project.

Plz, I want to know if I don't use some of the CPLD IO pins in my HDL Code, what is the logic state of these pins after the fitting the code in CPLD? Which one of 0 or 1 or Z?

TanQ for ur HELP

Xilinx Employee
sandrao
Posts: 107
Registered: ‎08-08-2007
0

Re: Problem with CPLD Unused IO!!!

Have a look at the IO UG

http://www.xilinx.com/support/documentation/user_guides/ug445.pdf

The state for unused IO's is selected in SW. It can be either Float or Ground.