From: owner-ibis-users@eda.org (ibis-users) To: ibis-users-digest@eda.org Subject: ibis-users V1 #201 Reply-To: Sender: owner-ibis-users@eda.org Errors-To: owner-ibis-users@eda.org Precedence: bulk ibis-users Wednesday, May 9 2012 Volume 01 : Number 201 ---------------------------------------------------------------------- Date: Mon, 7 Nov 2011 17:59:26 -0800 From: "Bob Ross" Subject: [IBIS-Users] Asian IBIS Summit (Shanghai) - Agenda This is a multipart message in MIME format. - ------=_NextPart_000_0110_01CC9D76.FE119A50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit All: Attached is the Agenda for a full meting 13 presentations. We look forward to seeing you in Shanghai. Bob and Lance - ------------------------------------------------------------------ A S I A N I B I S S U M M I T I N F O R M A T I O N Time/Date: 8:15 - 17:30, Tuesday November 15, 2011 Location: Parkyard Hotel Shanghai 699 Bibo Road Zhangjiang Hi-Tech Park Shanghai 201203 P.R. China Rooms: Ballroom ABC (Look for signs) Sponsors: Huawei Technologies (Primary) Agilent Technologies ANSYS Cadence Design Systems Intel Corporation IO Methodology Sigrity Synopsys ZTE Corporation - ------------------------------------------------------------------ I B I S S U M M I T M E E T I N G A G E N D A 8:15 REFRESHMENTS & SIGN IN - Vendor Tables Open at 8:30 8:45 Welcome - Li, JinJun (Huawei Technologies, China) - Mirmak, Michael (Chair, IBIS Open Forum, Intel Corporation, USA) 9:00 IBIS Status and Future Direction Mirmak, Michael (Intel Corporation, USA) 9:15 IBIS Model as De-Facto Standard Kusunoki, Kazuhiko* and Dai, WenLiang** (*Wadow Co., Japan and **Xpeedic, China) 9:40 IBIS VT Waveform and Over Clocking Chen, XueFeng (Synopsys, China) 10:10 BREAK (Refreshments and Vendor Tables) 10:30 IBIS Parsers Ross, Bob (Teraspeed Consulting Group, USA) 11:00 DDR3 System Timing Budget Analysis by SI&PI Co-Simulation Yi, Bi; Wang, Ping; and Zhu, Shunlin (ZTE Corporation, China) 11:30 Modeling the On-die De-cap of IBIS 5.0 PDN-aware Buffers Wang, Lance* and Wolff, Randy** (*IO Methodology, and **Micron Technology, USA) 12:00 FREE BUFFET LUNCH (Hosted by Sponsors) - Vendor Tables 13:30 Power-aware I/O Modeling for High-speed Parallel Bus Simulation Qin, ZuLi#; Wang' HaiSan#; Lin, Jack W.C.#; and Chen, Raymond Y.## (Sigrity, #China, ##USA) 14:05 The Application of of IBIS-AMI Model Cascaded Simulation for 10 Gigabit Repeater Serial Link Analysis Xu, ZhengRong*; Ma, LuYu*; Willis, Ken**#; Wang, HaiSan**##; Sledjeski, Lee***; and Unger, Nate*** (*Huawei Technologies, China, **Sigrity, #USA, ##China, ***Texas Instruments, USA) 14:30 AMI Applications in High-speed Serial Channel Analysis and Measurement Correlation Jia, Wei; Sun, AnBing; and Zhu, ShunLin (ZTE Corporation, China) 15:00 BREAK (Refreshments and Vendor Tables) 15:20 Pseudo Transient Eye Analysis by Convolution Method Li, BaoLong (ANSYS, China) 15:45 Introduction of FEC IL Gain Estimation Method in High Speed Link Dong, XiaoQing and Huang, ChunXing (Huawei Technologies, China) 16:15 Supporting External Circuit as Spice or S-parameters in Conjunction with I-V/V-T Tables Drumstad, Kent*; Hawes, Adge*##; Kukal,Taranjit**###; Al-Hawari, Feras**#; Varma, Ambrish**#; and Jernberg, Terry**# (*IBM, #USA, ##United Kingdom, **Cadence Design Systems, ###India, #USA) 16:50 Board-Only Power Delivery Prediction for Voltage Regulator and Mother Board Designs He, JiangQi# and Li, Y.L.## (Intel, #USA, ##China) 17:25 Concluding Items 17:30 END OF IBIS SUMMIT MEETING - ------------------------------------------------------------------ To Register by November 10, 2011: Name: E-mail address: Company: Top-level Web Link: Country: Telephone: Send to BOTH: Bob Ross, Teraspeed Consulting Group bob@teraspeed.com Lance Wang, IO Methodology Inc. lwang@iometh.com - -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - ------=_NextPart_000_0110_01CC9D76.FE119A50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

All:

 

Attached is = the Agenda for a full meting 13 presentations.

We look forward to seeing you i= n Shanghai.

 

Bob and Lance

 

----= - --------------------------------------------------------------

 

=        A S I A N   I B I S &nb= sp; S U M M I T    I N F O R M A T I O N

 

Time/Da= te:  8:15 - 17:30, Tuesday November 15, 2011

 

Location:&nbs= p;  Parkyard Hotel Shanghai

= &n= bsp;           699 Bibo R= oad

     &= nbsp;      Zhangjiang Hi-Tech Park

        &n= bsp;   Shanghai 201203

= &n= bsp;           P.R. China=

 

Rooms:      Ballroom ABC   = (Look for signs)

 <= /span>

Sponsors:   Huawei Technologies (Pri= mary)

     = ;       Agilent Technologies

        &nb= sp;   ANSYS

  &= nbsp;         Cadence Design System= s

     &nb= sp;      Intel Corporation

  = ;          Sigrity<= /span>

       &nbs= p;    Synopsys

 = ;           ZTE Corporati= on

 

------------------------------------------------------------= - ------

 

=

          I= B I S  S U M M I T  M E E T I N G  A G E N D A

 

= 8:15    REFRESHMENTS & SIGN IN

         - Vendor Ta= bles Open at 8:30

 =

8:45    Welcome

         = - - Li, JinJun

   &nbs= p;       (Huawei Technologies, China)

       =   - Mirmak, Michael

 &nbs= p;         (Chair, IBIS Open Forum,= Intel Corporation, USA)

 = ;

9:00    IBIS Status and= Future Direction

   = ;       Mirmak, Michael (Intel Corporation, U= SA)

 

9:15    IBIS Model as De-Facto Standard=

      &nb= sp;   Kusunoki, Kazuhiko* and Dai, WenLiang**

         = (*Wadow Co., Japan and **Xpeedic, China)

 

9:40   = ; IBIS VT Waveform and Over Clocking

10:10   BREAK (Refreshments and Vendor Table= s)

 

10:30   IBIS Parsers

          Ross, Bob= (Teraspeed Consulting Group, USA)

=  

11:00   DDR3 Syste= m Timing Budget Analysis by SI&PI Co-Simulation

 

11:3= 0   Modeling the On-die De-cap of IBIS 5.0 PDN-aware Buffers=

      &nb= sp;   Wang, Lance* and Wolff, Randy**

          (*IO Me= thodology, and **Micron Technology, USA)

 

12:00   FREE= BUFFET LUNCH (Hosted by Sponsors)

=           - Vendor Tables=

 

13:30   Power-aware I/O Modeling for High-speed Parallel = Bus Simulation

    &= nbsp;     Qin, ZuLi#; Wang' HaiSan#; Lin, Jack W.C= .#;

     &= nbsp;    and Chen, Raymond Y.##

          (Sigrity= , #China, ##USA)

 <= /span>

14:05   The Application of of IBIS-A= MI Model Cascaded Simulation

 =        for 10 Gigabit Repeater Serial Link An= alysis

    &nbs= p;     Xu, ZhengRong*; Ma, LuYu*; Willis, Ken**#; Wang,= HaiSan**##;

   &nbs= p;      Sledjeski, Lee***; and Unger, Nate***=

      &nb= sp;   (*Huawei Technologies, China, **Sigrity, #USA, ##China,

      &n= bsp;   ***Texas Instruments, USA)

 

14:30  = AMI Applications in High-speed Serial Channel Analysis and

        Measure= ment Correlation

   =        Jia, Wei; Sun, AnBing; and Zhu, ShunLi= n

     &nb= sp;    (ZTE Corporation, China)

 

15:00  = ; BREAK (Refreshments and Vendor Tables)

 

15:20   Pseu= do Transient Eye Analysis by Convolution Method

          Li, Bao= Long (ANSYS, China)

 

15:45   Introduction of FEC IL = Gain Estimation Method in High Speed Link

          Dong, XiaoQin= g and Huang, ChunXing

  &= nbsp;       (Huawei Technologies, China)=

 

16:15   Supporting External Circuit as Spice or S-paramet= ers in

    &nbs= p;   Conjunction with I-V/V-T Tables

          Drumstad= , Kent*; Hawes, Adge*##; Kukal,Taranjit**###;

          Al-Hawari= , Feras**#; Varma, Ambrish**#; and Jernberg, Terry**#

=

          (= *IBM, #USA, ##United Kingdom,

 = ;         **Cadence Design Systems,= ###India, #USA)

 <= /span>

16:50   Board-Only Power Delivery Pr= ediction for Voltage Regulator and

=         Mother Board Designs<= /span>

       &nbs= p;  He, JiangQi# and Li, Y.L.## (Intel, #USA, ##China)

 

<= span style=3D'font-size:10.0pt;font-family:"Courier New";color:#1F497D'>17:= 25   Concluding Items

<= span style=3D'font-size:10.0pt;font-family:"Courier New";color:#1F497D'> 

17:30   END OF IBIS S= UMMIT MEETING

 

-------------------------------------------------= - -----------------

 =

To Register by November 10, 2011:<= /span>

 

     Name:

<= span style=3D'font-size:10.0pt;font-family:"Courier New";color:#1F497D'>&nb= sp;    E-mail address:

 

     = Company:

     T= op-level Web Link:

 

     Country:=

     Telephone:

 

   Send to BOTH:

=  

     Bob Ross= , Teraspeed Consulting Group    bob@teraspeed.com=

     Lance Wang, IO Metho= dology Inc.         lwang@iometh.co= m

<= br />--=20
This message has been scanned for viruses and
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believed to be clean. - ------=_NextPart_000_0110_01CC9D76.FE119A50-- - -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Fri, 30 Mar 2012 11:50:17 -0700 From: "Bob Ross" Subject: [IBIS-Users] European IBIS Summit at SPI 2012 - Second Call for Papers/Participation (Resent due to possible reflector issues) All: We are holding the 15th European IBIS Summit Meeting along with the 16th IEEE Workshop on Signal and Power Integrity (SPI 2012), formerly Signal Propagation and Interconnects) on Wednesday, May 16, 2011 in Sorrento, Italy The purpose is to promote communication among users and developers of IBIS models in Europe. The meeting is FREE and OPEN to everyone. Below is some information on the IBIS Summit and the SPI2012 Workshop. You are invited to register and also to submit presentation proposals. We already plan for several topics listed below Antonio Girardi Micron Technology Lance Wang IO Methodology ====================================================================== European IBIS Summit at SPI 2012 Second Call for Participation and Presentations ====================================================================== http://www.eda.org/ibis/summits/may12/announcement.pdf - ---------------------------------------------------------------------- E U R O P E A N I B I S S U M M I T M E E T I N G - ---------------------------------------------------------------------- Time/Date: 13:00 - 18:00, Wednesday, May 16, 2012 Location: Parco dei Principi - Sorrento Hotel http://www.royalgroup.it/eng/parco_dei_principi_hotel_sorrento/ Via Rota, 1, 80067 Sorrento (NA) Italy Tel. + 39 081 8784644 Fax + 39 081 8783786 Meeting-Room: To Be Determined Content: Presentations and Discussions Purpose: Solicit and Exchange IBIS Model Related Information and Ideas Sponsors: Micron Technology, Nokia Siemens Network and Zuken If your company would be interested in sponsoring this event, please contact Bob Ross bob@teraspeed.com SPI 2011: May 13 - 16, 2012. Location: Grand Hotel Parco dei Principi - Sorrento, Italy URL: http://www.spi2012.org/ Program: http://www.spi2012.org/images/SPI2012_preprogram.pdf Registration: http://www.spi2012.org/?who=registration - ----------------------------------------------------------------------- BACKGROUND We have had successful IBIS meeting along the DATe conference for many years, and more recently the IEEE Workshop on Signal Propagation on Interconnects. This meeting will be conducted as a formal IBIS Summit Meeting. Presentations are expected to be available and archived in an electronic format, and minutes of the meeting will be issued. The meeting is FREE and OPEN to everyone. Refreshments & coffee breaks are planned. CALL FOR PARTICIPANTS People involved in IBIS Model development, EDA tool development, and digital circuit design are invited to participate. If you want to participate, please register with the information below: Name: E-mail address: Company: Telephone: Send to BOTH: Antonio Girardi (agirardi@micron.com) Lance Wang (lwang@iometh.com) Deadline: May 9, 2012 CALL FOR PRESENTATIONS We are seeking presentations from individuals who have IBIS experiences or issues. Some suggested subjects of interest are: - IBIS Model Development Experiences - Company IBIS Standards and Requirements - Generating & Validating IBIS Models - Future IBIS Developments and Requirements (e.g., IBIS-AMI) - Modeling of dedicated technology issues (e.g., connectors, and very high speed interfaces) - EMC/EMI and Power Integrity Issues - Related modeling issues (e.g., SPICE, S-Parameter modeling) - Experiences using IBIS in the PCB Design process Format of Presentation: LCD Projections Time: 15-30 Minutes Electronic Archival: We require electronic versions for so they can be archived and also made available to non-attendees. We prefer Power Point or Acrobat formats. Please send presentations for processing and brief review. Otherwise please bring 20 copies to the meeting. If you plan a presentation, please supply: Title: Presenter: E-mail address: Company: Telephone: Estimated Time: Send this to BOTH: Lance Wang (lwang@iometh.com) Bob Ross (bob@teraspeed.com) Deadline: May 4, 2012. Note, Vendor-specific or product promotional material is forbidden at IBIS Summits. We strongly advise that the presentations be submitted by the deadline for review. The IBIS Open Forum reserves the right to stop or reject a scheduled presentation that has not been reviewed. AGENDA The agenda includes presentations, discussions, breaks and refreshments. This will be developed as presentation proposals are received. LIST OF NEARBY HOTELS http://www.spi2012.org/?who=accomodation - ---------------------------------------------------------------------- - -- Bob Ross Teraspeed Consulting Group, LCC http://www.teraspeed.com bob@teraspeeed.com Direct : 503-246-8048 Teraspeed Labs: 503-430-1065 Headquarters: 401-284-1827 Teraspeed is a registered service mark of Teraspeed Consulting Group LLC - -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Fri, 6 Jan 2012 00:22:15 +0000 From: "Mirmak, Michael" Subject: [IBIS-Users] IBIS Summit at DesignCon 2012 - Second Call for Participation and Presentations The IBIS Open Forum is holding an IBIS Summit meeting at DesignCon 2012 at the Santa Clara Convention Center in Santa Clara, California on February 2. IBIS Summits are designed to enable face-to-face interactions between model users, model makers and tool developers in the IBIS community. Those interested in presenting at or attending the event may register using the information below. Note that a 30% discount on DesignCon registration is available to IBIS Summit attendees. Please consult the links below for more information. The IBIS Open Forum is sponsoring the event, but we welcome additional sponsors to cover some of the meeting expenses, including the FREE lunch and refreshments. We look forward to seeing you in Santa Clara! Best regards, Michael Mirmak Intel Corp. Chair, IBIS Open Forum - ----------------------------------------------------------------------- I B I S S U M M I T M E E T I N G SECOND CALL FOR PARTICIPATION & PRESENTATIONS - ----------------------------------------------------------------------- Time/Date: Thursday, February 2, 2012 8:00 AM to 5:00 PM Location: Santa Clara Convention Center 5101 Great America Parkway, Santa Clara, California, USA Room: Great America Ballroom 1 (look for signs) Santa Clara Convention Center Content: Presentations and Discussions Cost: FREE Sponsors: IBIS Open Forum, DesignCon We are seeking more co-sponsors. The benefits to sponsors include recognition at the meeting and acknowledgement in the Calls for Papers and meeting minutes. Your financial support strengthens the organization by allowing IBIS to focus resources on industry activities rather than raising money. You will receive generous thanks and public acknowledgement for your support. Please contact Lance Wang (lwang@iometh.com) for co-sponsorship information. DesignCon 2012: January 30 - February 2, 2012 (Conference) January 31 - February 1, 2012 (Exhibition) Santa Clara Convention Center Santa Clara, CA http://www.designcon.com/ Exhibits registration: http://www.designcon.com/how_to_register Conference Schedule: http://www.designcon.com/conference Discount Registration for IBIS Summit Attendees https://designcon.reg.ubmelectronics.com/2012/registrations/registration?_mc=IBIS30 (please ensure you also register for the Summit itself as described below) BACKGROUND DesignCon is the premier annual Silicon Valley event for the electronic design automation (EDA) and semiconductor industry. Topics of current interest to the IBIS Open Forum are addressed at DesignCon. This meeting will be conducted as a formal IBIS meeting. Presentations are expected to be available and archived in an electronic format, and minutes of the meeting will be issued. Any pending formal decisions (votes) will be announced at least two weeks prior to the meeting. CALL FOR PARTICIPANTS People involved in IBIS or related model development, EDA tool development, and digital circuit design are invited to participate in the Summit meeting. If you plan to participate, please register with the information below: Name: E-mail address: Company: Telephone: Send your registration information to Lance Wang (lwang@iometh.com). Registration deadline is Wednesday, January 25, 2012 to receive the free lunch. CALL FOR PRESENTATIONS We are seeking presentations from individuals who have experiences of interest to the IBIS modeling community. These can include, but are not limited to: Demonstrations of modeling techniques Explanations of behavioral algorithms Descriptions of difficulties encountered Model building and correlation experiences Comparisons to other modeling methods New technologies for modeling buffers, components, packaging and interconnects Algorithmic modeling topics Etc. Presentations may be addressed to any and all levels of IBIS experience, from beginner to expert. Presentation Format: Microsoft PowerPoint* or Adobe Acrobat* electronic formats are favored and will be pre-loaded on a Microsoft Windows*-based meeting laptop prior to the meeting. Materials will be projected but handouts or other physical media are welcome. Time: Usually 15-45 minutes (allow time for questions) Electronic Archival: Presentations will be archived under the IBIS Summit website. Final submission deadline is: Wednesday, January 25, 2012 If you plan a presentation, please supply the following information as soon as possible: Presentation Title: Presenter Name: E-mail address: Company: Telephone: Estimated Time: Send to Michael Mirmak (michael.mirmak@intel.com). Note, vendor-specific or product promotion material is forbidden at IBIS summits. Presentations MUST be submitted by the deadline for review. The IBIS Open Forum reserves the right to reject submitted presentations or stop a scheduled presentation containing content that has not been reviewed. AGENDA The agenda includes presentations, discussions, breaks, and a FREE lunch. A formal list of speakers and topics will be released one week prior to the event. HOTEL AND TRAVEL INFORMATION The Hotel and Travel Link below provides a conference hotel discount, as well as transportation suggestions: http://www.designcon.com/travel_information - -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Wed, 21 Sep 2011 10:52:53 +0530 From: Nagarjuna Vallamkonda Subject: [IBIS-Users] IBIS Delay Model - --_000_22EE49FD69B6EE4D8F543B18C25448F21449453182IN01WXMBX1int_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi As we know that, rm_dly_* keywords are used to remove the initial and flat = tail delay for rising and falling waveforms in HSPICE. Does these keywords = have any impact on rising and falling times of waveforms? When we compare the results of HSPICE with Mentor ICX Pro explorer, I see d= ifferent results for the two tools. Why is it happening so for such a simpl= e circuit? Can anyone help me regarding this ASAP. Thanks & Regards Nagarjuna - --=20 This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - --_000_22EE49FD69B6EE4D8F543B18C25448F21449453182IN01WXMBX1int_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi

 

As we know = that, rm_dly_* keywords are used to remove the initial and flat tail delay = for rising and falling waveforms in HSPICE. Does these keywords have any im= pact on rising and falling times of waveforms?

 

When we compare the result= s of HSPICE with Mentor ICX Pro explorer, I see different results for the t= wo tools. Why is it happening so for such a simple circuit?

<= p class=3DMsoNormal> 

Can anyone he= lp me regarding this ASAP.

 

Thanks & Regards

Nagarjuna


--=20
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean. - --_000_22EE49FD69B6EE4D8F543B18C25448F21449453182IN01WXMBX1int_-- - -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 ------------------------------ Date: Thu, 03 Mar 2011 14:16:08 +0100 From: Petar Subject: [IBIS-Users] IBIS [Add Submodel] workaround This is a multi-part message in MIME format. - --------------070106060000020302090100 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi, I use EDA tool called Altium. It uses old version of ibis so every time I want to do analysis I need to modify IBIS file for Altium to accept it. I know for a fact that Altium does not support [series_switch], [Add Submodel] and [Model Selector]. I do not need to workaround [series_switch], and i have managed to work around [Model Selector]. Now the last thing I need to do is to work around [Add Submodel] keyword. I'm simulating DDR3 memory modules, and I want to use their On Die Terminations (ODT). Pin model looks like this: [Model] DQ34_ODT20_1066 Model_type I/O . . some normal stuff from . model definition here . [Add Submodel] | Submodel Name Mode 20Ohm_ODT_1066 Non-Driving | [Temperature Range] 85.00 110.00 0.00 [Voltage Range] 1.500V 1.425V 1.575V [Pullup Reference] 1.500V 1.425V 1.575V [Pulldown] . . Pulldown table here . [Pullup] . . Pullup table here . [GND Clamp] . . GND Clamp table here . [POWER Clamp] . . POWER Clamp table here . After this are other model definitions, and my submodel is defined after them: . . [Submodel] 20Ohm_ODT_1066 Submodel_type Dynamic_clamp | |*************************************************************************** | [GND Clamp] | . . Submodel's GND Clamp table here . [POWER Clamp] | . . Submodel's POWER Clamp table here . Since Altium does not support [Add Submodel], I can get correct results for this pin only if I set it to output (driving). If it is set to Input (Non-driving) a submodel should be used, and I will get wrong results. Now, I want to modify this IBIS file by "implementing" data from [Submodel] into [Model]. This way I would get correct results when doing analysis with this pin set as input. I know that by doing that I will not get correct results with this pin set as output, but that is OK. I will then combine two IBIS files based on the analysis that I'm doing. Do I have to simply replace [GND Clamp] and [POWER Clamp] tables from the [Model] with the ones from the [Submodel], or do I have to use some arithmetic functions in order to combine the two (or something third). I hope I was clear, since I find this very hard to explain :-) Regards Petar Perisin - -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. - --------------070106060000020302090100 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit  Hi,

I use EDA tool called Altium. It uses old version of ibis so every time I want to do analysis I need to modify IBIS file for Altium to accept it.

I know for a fact that Altium does not support [series_switch], [Add Submodel] and [Model Selector]. I do not need to workaround [series_switch], and i have managed to work around [Model Selector].

Now the last thing I need to do is to work around [Add Submodel] keyword.

I'm simulating DDR3 memory modules, and I want to use their On Die Terminations (ODT). Pin model looks like this:

[Model]          DQ34_ODT20_1066
Model_type       I/O
.
.   some normal stuff from
.   model definition here
.
[Add Submodel]
| Submodel Name        Mode
20Ohm_ODT_1066         Non-Driving
|
[Temperature Range]       85.00               110.00              0.00
[Voltage Range]           1.500V              1.425V              1.575V
[Pullup Reference]        1.500V              1.425V              1.575V
[Pulldown]
.
.  Pulldown table here
.
[Pullup]
.
.  Pullup table here
.
[GND Clamp]
.
.  GND Clamp table here
.
[POWER Clamp]
.
.  POWER Clamp table here
.

After this are other model definitions, and my submodel is defined after them:
.
.
[Submodel]  20Ohm_ODT_1066
Submodel_type   Dynamic_clamp
|
|***************************************************************************
|
[GND Clamp]
|
.
.   Submodel's GND Clamp table here
.
[POWER Clamp]
|
.
.   Submodel's POWER Clamp table here
.

Since Altium does not support [Add Submodel], I can get correct results for this pin only if I set it to output (driving). If it is set to Input (Non-driving) a submodel should be used, and I will get wrong results.

Now, I want to modify this IBIS file by "implementing" data from [Submodel] into [Model]. This way I would get correct results when doing analysis with this pin set as input. I know that by doing that I will not get correct results with this pin set as output, but that is OK. I will then combine two IBIS files based on the analysis that I'm doing.

Do I have to simply replace [GND Clamp] and [POWER Clamp] tables from the [Model] with the ones from the [Submodel], or do I have to use some arithmetic functions in order to combine the two (or something third).


I hope I was clear, since I find this very hard to explain :-)

Regards
Petar Perisin



--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean. - --------------070106060000020302090100-- - -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis | subscribe ibis-users | unsubscribe ibis | unsubscribe ibis-users | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 ------------------------------ End of ibis-users V1 #201 *************************