Re: errata/47: PROPOSAL - Wrong description of tri0/1 in 3.7.4 (fwd)

From: Shalom.Bresticker@motorola.com
Date: Sun Apr 27 2003 - 00:10:03 PDT

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    The following reply was made to PR errata/47; it has been noted by GNATS.

    From: Shalom.Bresticker@motorola.com
    To: etf-bugs@boyd.com
    Cc:
    Subject: Re: errata/47: PROPOSAL - Wrong description of tri0/1 in 3.7.4 (fwd)
    Date: Sun, 27 Apr 2003 10:07:31 +0300 (IDT)

     Resend with correction.
     
     I would like to add mutual cross-references between:
     
     - sections 3.7.4 (this section) and 7.13.1 ("tri0 and tri1 net strengths")
     - sections 3.7.2 ("Wired nets") and 7.10.4 ("Wired logic net types")
     - sections 3.7.3 ("Trireg net") and 7.13.2 ("trireg strength")
     
     Shalom
     
     
     On Thu, 24 Apr 2003, Shalom Bresticker wrote:
     
    > In Section 3.7.4
    >
    > Replace the first three paragraphs with:
    >
    > "The tri0 and tri1 nets model nets with resistive pulldown
    > and resistive pullup devices on them. A tri0 net is
    > equivalent to a wire net with a continuous 0 value of pull
    > strength driving it. A tri1 net is equivalent to a wire net
    > with a continuous 1 value of pull strength driving it.
    >
    > When no driver drives a tri0 net, its value is 0 with
    > strength pull. When no driver drives a tri1 net, its value
    > is 1 with strength pull. When there are drivers on a tri0
    > or tri1 net, the drivers combine with the strength pull
    > value implicitly driven on the net to determine the net's
    > value. See 7.9 for a discussion of logic strength modeling.
    >
    > Table 6 and Table 7 are truth tables for modeling multiple
    > drivers of strength strong on tri0 and tri1 nets. The
    > resulting value on the net has strength strong, unless both
    > drivers are z, in which case the net has strength pull."
    >
    > (In the last paragraph, "strong" and "pull" should be bold.)
    > http://boydtechinc.com/cgi-bin/issueproposal.pl?cmd=view&pr=47
     

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