List of Messages |
CAUSE: The specified ALT_IOBUF has its "io" port connected to an output pin. This is illegal. The port should be connected to a bidirectional pin.
ACTION: Either connect the "io" port of the specified ALT_IOBUF to a bidirectional pin, or use ALT_OUTBUF or ALT_OUTBUF_TRI primitive instead and connect its "o" port to the output pin.
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