( ESNUG 224 Item 2 ) ---------------------------------------------- [8/8/95]
Subject: (ESNUG 223 #5) Handling Unconnected Ports
>John, Question for the masses: What's the accepted way of leaving a port
>unconnected? We're instantiating transceivers in our design (to communicate
>with off-chip signals), but the transceiver model has ports that we don't
>need to use. Do we tie all these ports to an "unused" signal? Wouldn't this
>tie them together then? How do I handle this?
From: Dave Chapman <dchapman@well.com>
There are (at least) two ways to make a placeholder for unused pins:
Neanderthal Method:
inout unused_0, unused_1, ..., unused_n;
Cro-Magnon Method:
inout [n..0] unused;
Perhaps some of the more evolved folks can show you other methods, but I just
upgraded to being a Cro-Magnon, and am proud of it!
-Dave Chapman
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