RE: [SI-LIST] : Need assistance. ICX User.

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From: Lai, Ricky (Eng Hou) (Ricky.Lai@compaq.com)
Date: Thu Jul 06 2000 - 11:36:28 PDT


To answer some of your questions:

(1) You have defined the pulse train in the design data sheet. But you
probably have not defined which pulse train(s) to use in your rule checking
sheet.

(2) Here is your 10-pin Rpack model:
|
[Component] 5R1K
[Manufacturer] xxx
[Package]
| typ min max
R_pkg 0 NA NA
L_pkg 0 NA NA
C_pkg 0 NA NA
|
|
[Pin] signal_name model_name R_pin L_pin C_pin
|
 1 1-To-10 R_1K
10 1-To-10 R_1K
 2 2-To-9 R_1K
 9 2-To-9 R_1K
 3 3-To-8 R_1K
 8 3-To-8 R_1K
 4 4-To-7 R_1K
 7 4-To-7 R_1K
 5 5-To-6 R_1K
 6 5-To-6 R_1K
|
[Model] R_1K
Model_type Terminator
| typ min max
C_comp 0.0 NA NA
[Voltage range] 5.0 NA NA
|
[Rseries] 1000.0 NA NA
|

(3) Probably one side of the series resistor is connected to a net, but the
other side is not.

-----Original Message-----
From: In-myung Song [mailto:imsong@itx03.internex.co.kr]
Sent: Thursday, July 06, 2000 12:26 PM
To: si-list@silab.eng.sun.com
Subject: [SI-LIST] : Need assistance. ICX User.

Hello readers.

I have a big problem during shnthesis in ICX made by MentorGrahpics.

1. When I optimze the selected nets, "Warning : Pulse train not found in
this design. Using DefaultPulseTrain" appear. But I already set the
pulse train in design data. What is the problem?

2. I need the IBIS model of the array resistor 10pin such as

pin1 ---R----------------pin10
               |
pin2 ---R------------R---pin9
               |
pin3 ---R------------R---pin8
               |
pin4 ---R------------R---pin7
               |
pin5 ----------------R---pin6
How can I make the IBIS model of above array resistor of which each
value R=1k ?

3. What does "Warning: A series resistor at design/1/pinInst/RA15-9 is
not attached to
any other net." mean? PinInst RA15-9 is attached the electrical net
A(4).

4. How can I setup the skew control of on driver to multiple buses ? Is
it possible to synthesize of the physical net instead of electrical net?

5. How can ICX calculate the Actual Min. delay and Actual Max. delay?

6. What is the different meaning between flight time(Delay/Unit Length)
and delay on timing rule chart?

Please help me as soon as possible.

        Inmyung Song.

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