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Design Languages >> Verilog-AMS >> question about the connectRules
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Message started by Aigneryu on Mar 27^th, 2007, 5:20pm

Title: question about the connectRules
Post by Aigneryu on Mar 27^th, 2007, 5:20pm

Hi,

Recently while I tried to simulate my circuit with AMS, I realized that I need 2 different voltage level in the digital domain, say, high swing and low swing. Not like spectreVerilog, I do not know how to assign different connect modules or rules to different A/D interfaces. Can anybody point out which document I should refer to? I read some of the help files, and was confused because it is said that the discipline will affect the connect rules.

Sincerely,

Title: Re: question about the connectRules
Post by jbdavid on Apr 4^th, 2007, 1:51am

the discrete discipline determines the connect module used..
what I generally do is use 2 logic disciplines.. - (neither is "logic" because thats a reserved work in systemverilog)
so I use a cmos_logic15 for the core, and cmos_logic33 for the io
a pretty full description of different cml swing discipline types is described in a paper presented at BMAS in 2006, which lists example connect rules, and connect models I used recently..

http://www.bmas-conf.org/2006/4.1_paper.pdf

HTH

Title: Re: question about the connectRules
Post by Aigneryu on Apr 7^th, 2007, 7:09pm

Thank you so much, this is exactly what I need.

Sincerely,