From: Aloke Bhattacharya ([email protected])
Date: Mon Sep 04 2000 - 05:40:20 PDT
Hello,
I have a simple topology like this:
Driver ------TL1---------/\/\/\/\-------TL2----------Receiver
33ohm
The driver is connected to the receiver through a 33ohm series
termination resistor. This Xnet is a part of
a group of source synchronous signals and I need to apply the following
constraints to the above topology in Sigxp:
(i) the length of (TL1+TL2) has to match across all the signals within
50 mils.
(ii)TL1+TL2 length should be between 1 inch and 6 inches
In the set constraints menu of Sigxp, I don't see any option of applying
delay or matched delay constraints
to the sum of lengths of two or more transmission lines. Currently I am
able to apply the delay or the matched delay constraint to only a single
segment of a transmission line(like TL1 or TL2 in the above diagram).
Does anybody know how to assign such a constraint in Sigxp? If it is not
possible to assign it in Sigxp, is it possible to do it in Allegro?
With regards,
Aloke
-- ********************************************************************** * Aloke Bhattacharya, * * Senior Engineer-VLSI/System Design, * * * Wipro Infotech, * * Global R&D, * * 88, M.G. Road, 5th Floor, * * S.B. Towers, * * Bangalore- 560 001 , * * INDIA * * Tel : 91-80-5588422(Ext. 520) * * email: [email protected] * * ************************************************************************** To unsubscribe from si-list or si-list-digest: send e-mail to [email protected]. In the BODY of message put: UNSUBSCRIBE si-list or UNSUBSCRIBE si-list-digest, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu ****
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