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IBIS INTERCONNECT TASK GROUP
Mailing list: ibis-interconnect@freelists.org 

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Attendees from March 11, 2026 Meeting (* means attended at least using audio)

Chipletz			     Stephen Newberry
Intel Corp.                          Michael Mirmak*
MathWorks                            Walter Katz*
Siemens EDA                          Weston Beal, Arpad Muranyi*, Randy Wolff*
Synopsys                             Ted Mido, Edna Moreno

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Michael Mirmak called the meeting to order.  No patents were declared.

Michael noted that the minutes for several previous meetings were not yet available;
these include the meeting minutes for March 4 and February 18.

Michael reviewed the latest version of the Port Mapping proposal.

Arpad Muranyi asked what the meaning of A_gnd is for Probe.  Walter Katz added 
that he did not like the use of "common" for references.
For references, there is no "common" but only "local".

Randy Wolff noted that Probe formatting must use X:Y:Z syntax.  

Michael asked whether A_gnd should be disallowed entirely for Probe.  Randy noted 
that the Probe location, including the reference, will be related to the pitch 
of the probe.  An optional best-known method should be prepared to note how the 
Probe notation relates to actual lab measurement.

Walter proposed that perhaps this doesn't matter - Probe exists to show how the 
original data can be reproduced.

Michael asked whether A_gnd should similarly be removed for Logical.  Randy 
suggested that, for a symbol using 2N port referencing notation, some instruction 
may be needed to suggest to those using the symbol in a schematic to "hook that 
node to node zero".

Arpad noted that he was tempted to recommend that any Logical negative terminal 
name should match the positive
name but with the "-" sign added.

Randy replied that the Logical reference terminal is essentially a comment.  
Arpad asked how one would indicate the correct reference in a symbol - if you 
connect two ports together from different components, the positive and negative 
terminals should share names.  [Arpad later revised this in a message to the 
Interconnect participants; the negative terminal need not share a name with the 
positive terminal for Logical]

Walter noted that, during symbol creation, the symbol will contain any information 
needed for connections.

Arpad replied that the Logical structure provides labels to help people connect a 
given element.  Randy added that there must be some way to distinguish a good label 
and a bad label for a given symbol.

Michael noted that Example 2A shows Probe reference terminals with specific X:Y:Z 
locations.  Arpad suggested that, if these are labels, Port 1 could have a Logical 
reference of "Alice" and Port 2 could have a Logical reference of "Bob".  

The discussion was ended due to lack of time.

Randy moved to adjourn the meeting; Walter seconded.  The meeting adjourned.