LEF syntax description

[192.115.106.27]

Hi,
Does anyone know where on the web or in Cadence/Synopsys documentation a
LEF syntax description can be found?
Thanks,
Joshua Schwartz

 

[192.115.106.27]

Hi again,
I answered my own question. Apparently LEF and DEF are proprietatry formats
of Cadence. However, I think they are open or at least open in the way
Liberty from Synopsys is . Anyway the definitions can be found on the
Cadence sourcelink site by using the following search expression with "All
Products" selected:

LEF library exchange format language reference

I hope I save someone a lot of Web poking around.
Joshua


"192.115.106.27" <josh@wisair.com> wrote in message
news:424a5f2b$1@news.bezeqint.net...

Hi,
Does anyone know where on the web or in Cadence/Synopsys documentation a
LEF syntax description can be found?
Thanks,
Joshua Schwartz

 

[James Lu]

Hi Joshua,

There is this document online about the VCLEF format.

http://3c.nii.org.tw/3c/silicon/SOC/vclef51.pdf

VCLEF is a subset of LEF. Most of them are compatible. If you really
want the entire LEF definition, I am sure you can just use google and
there will be plenty.

James