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 xilinx cpld xc9572 pq 100 package		  Forum Locked
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vishaldotgupta

India
38 Posts
Posted - 12/14/2008 :  09:37:31  Show Profile
hi, is there way to map pins of xilinx cpld xc9572-100 pq 100 package. the purpose is to drive logic / truth table.
Reply #1

ZLM

2945 Posts
Posted - 12/14/2008 :  22:35:45  Show Profile
do not understand. More information needed.
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Reply #2

vishaldotgupta

India
38 Posts
Posted - 12/15/2008 :  05:12:54  Show Profile
a cpld has programable logic gates. for certain defined inputs, it will give out defined outputs. it is possible to map these inputs and outputs to find out the relation between input and outputs. such a relation is known a truth table for a logic device. say for example, i want to know under what input conditions a particular cpld pin will give a high logic
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Reply #3

ZLM

2945 Posts
Posted - 12/16/2008 :  17:33:31  Show Profile
If the CPLD only functioning as a truth table, and you know what pins are input pins,then it should be easy to find out the truth table. But if the CPLD has input clock and it is not the simple logic, then you are unable to find it out what is the data in the CPLD.
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