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what is the function of IBUF

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syedshan

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Can any one exlpain the function of IBUF

I was just curious since in my synchronous design where reset is also synchronous with clock
the reset is applied to IBUF as I saw on View Technology Schematic in ISE.

Also an ENABLE signal is connected to ibuff and both signals then routed to the whole circuit.
 

IBUF is an input buffer. It is used when a signal is driven from a pad (pin). If design a module and set it as a top level module and compile, the tool inserts IBUF and OBUF for input and output pins.
 

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