[ibis-macro] IBIS-ATM teleconference - Agenda for 4/24/2012
- From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
- To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 24 Apr 2012 18:19:19 +0000
Time: April 24, 2012 Noon US Pacific Time
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Agenda
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1) Opens
2) Call for any related patent disclosures
3) Review of ARs:
Walter/Bob: Update Table example with the requests from the discussion
- no update
Arpad: Propose IBIS spec changes to clarify ISS D2A & A2D interfaces
- in progress
Arpad: Write a new revision of BIRD 117 and 118 to generalize
references to parameters in files (.ami or any)
- in progress
Ambrish update BIRD 145 for pad to pin mapping and other clarifications
- Need to say what it will not solve
- tabled
Any other AR-s?
Old ARs:
Arpad: Review the documentation (annotation) in the macro libraries.
- deferred until a demand arises or we have nothing else to do
4) BIRD 123.3 (Walter)
- introduction of changes needed
- discussion
5) Analog BIRDs discussion
- BIRD 117.4/118.3 draft3
- introduction of changes in this draft (Arpad)
- enclosed the tree in new IBIS keywords when the tree is
inside the .ibs file
- file name is now part of the parameter tree reference
- included full "path" in the tree
- still need to define rules for various parameter types
- Reserved vs. Model_Specific
- required vs. optional
- questions/comments/discussion?
- BIRD 116/144 related: The ATM group decided on 4/3/2012 that
it is sufficient to describe the ideal nature of D_to_A and
A_to_D converters as the boundary condition for models in
[External Model] and [External Circuit].
- Find a good place in the specification to mention this.
- Tx model is always driven by an ideal voltage source
- i.e. zero output impedance
- Rx model is always loaded by an ideal voltage source
- i.e. infinite input impedance
- Rx model's "A_to_D" converter is really an ideal probe which
has an output of a floating point number
- allowing multiple trees in one file is a good idea with
keywords [Begin Parameter Trees] [End Parameter Trees]
- eliminate 120 character line requirement inside these
keywords?
- use virtual file name instead of tree name?
- separate the general syntax and rules of the tree from
specific rules which apply to AMI or *-AMS and ISS models
- BIRD 125 package modeling
BIRD 122 (Walter)
- working documents: ISS_Buffer_BIRD.doc (May 17, 2011)
ISS_Package_BIRD_RevA.doc (May 27, 2011)
6) BIRD 121.1, data management parameters (file support) (Walter)
- questions, comments?
7) BIRD 150, dependency table (Walter)
- questions, comments?
8) New BIRD draft on Naming Rules (Walter)
- comments, questions?
9) Info, Out, InOut BIRD (Arpad)
- latest wording includes "in order to be compliant with this
specification, Model_Specific parameters ... must not ...",
and omits the word "simulation" so it's meaning doesn't have
to be defined
- any comments, questions on this draft?
10) Eye Mask definition
11) What is the purpose of the specification? Describe the syntax
and rules of the syntax, or tell the reader how to make models?
Tabled topics:
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- BIRD 144.3 Direct S-parameters under [External Model] (Cadence)
- BIRD 145.2 Cascading [Model] with [External Model] (Cadence)
Thanks,
Arpad
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