[ibis-macro] Re: IBIS-ATM teleconference - Agenda for 4/17/2012
- From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
- To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 17 Apr 2012 18:23:09 +0000
Update on my AR regarding where to put the definitions
on the A_to_D and D_to_A boundary conditions.
After a quick look at the v5.0 specification, it seems
that the best place for this definition would be on the
bottom of pg. 104, right after this paragraph:
| SPICE, VHDL-A(MS), Verilog-A(MS) versus VHDL-AMS and VERILOG-AMS
|
| SPICE, VHDL-A(MS), Verilog-A(MS) cannot process digital signals. All SPICE,
| VHDL-A(MS), Verilog-A(MS) input and output signals must be in analog format.
| Consequently, IBIS multi-lingual models using SPICE, VHDL-A(MS) or
| Verilog-A(MS) require analog-to-digital (A_to_D) and/or digital-to-analog
| (D_to_A) converters to be provided by the EDA tool. The converter
| subparameters are declared by the user, as part of the [External Model] or
| [External Circuit] syntax, with user-defined names for the ports which
| connect the converters to the analog ports of the SPICE, VHDL-A(MS), or
| Verilog-A(MS) model. The details behind these declarations are explained
| in the keyword definitions below.
I will try to write a draft next.
Thanks,
Arpad
==============================================================================
-----Original Message-----
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Muranyi, Arpad
Sent: Tuesday, April 17, 2012 11:27 AM
To: IBIS-ATM
Subject: [ibis-macro] IBIS-ATM teleconference - Agenda for 4/17/2012
Time: April 17, 2012 Noon US Pacific Time
=====
Audio:
======
Voice dial-in: (800) 637-5822
International: +1 (647) 723-3937 <--- (For Canada)
0114501530 <--- (For Sweden)
0201400572 <--- (For Sweden Toll Free)
069509594672 <--- (For Germany)
08001014542 <--- (For Germany Toll free)
Access Code: 685-0440
Web
===
Click Here to Join Live Meeting:
http://tinyurl.com/yvmesj
or:
https://www.livemeeting.com/cc/sisoft/join?id=NKQQN3&role=attend&pw=TP8j%23-%25%7E5
Mentor Global Crossing Teleconference commands:
http://www.globalcrossing.com/customer/collaboration/cust_ready_access_tips.aspx
FIRST TIME USERS: To save time before the meeting, check your
system to make sure it is compatible with Microsoft Office Live
Meeting.
---------------------------------------------------------------------
Agenda
======
1) Opens
2) Call for any related patent disclosures
3) Review of ARs:
Arpad: Send an email to the ATM reflector about the vote on BIRD 144
- done
Arpad: Propose IBIS spec changes to clarify ISS D2A & A2D interfaces
- no update
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
- in progress
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) Analog BIRDs discussion
- BIRD 144.3 Direct S-parameters under [External Model] (Cadence)
- take a vote on whether to end the discussions on BIRD 144.3 in
the ATM teleconferences and to make a recommendation to the
IBIS Open Forum to reject the BIRD.
- BIRD 145.2 Cascading [Model] with [External Model] (Cadence)
- questions, comments?
- BIRD 117.4/118.3 draft2
- 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)
5) BIRD 121.1, data management parameters (file support) (Walter)
- questions, comments?
6) BIRD 150, dependency table (Walter)
- questions, comments?
7) New BIRD draft on Naming Rules (Walter)
- comments, questions?
8) 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?
9) Eye Mask definition
10) What is the purpose of the specification? Describe the syntax
and rules of the syntax, or tell the reader how to make models?
Thanks,
Arpad
=====================================================================
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
Other related posts:
