Just because the BNF can produce a particular syntax does not make that code legal. There are many semantic rules that must also be satisfied by legal code. Section 19.12 says "It also creates a new type of port qualifier, ref, to allow shared variable behavior across a port." Section 19.12.1 on rules for variables says "A ref port shall be connected to an equivalent variable data type." Section 19.12.2 on rules for nets specifies the rules for connecting the different port directions, and does not include a rule for ref. So while I didn't find a place where the LRM came out and said that ref ports could not be nets, it seems clear that is the intent. Steven Sharp sharp@cadence.com -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.Received on Tue Feb 20 12:18:51 2007
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