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How do I specify a bidirectional I/O in my schematic?


Record #1681

Problem Title:
How do I specify a bidirectional I/O in my schematic?


Problem Description:
Keywords: bidirectional, schematic

Urgency: Standard

From schematic entry, how do you create a bidirectional I/O?


Solution 1:

In order to create a bidirectional I/O, you must place an
IOPAD in your schematic and connect to this pad the input
of an input element such as an IBUF or IFD and the ouput of
a tri-stateable output element such as the OBUFT, OBUFE,
OFDE, OFDT, etc.

For Example :


Example Bidirectional I/O





End of Record #1681