Stats

  • Locked Locked
  • Replies 1
  • Subscribers 125
  • Views 811
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

.cdl file - getting the TX length and width

cadence4help

Hi All

If I want to find out the n_width and p_width of a library cell (for example), can I open the .cdl file and add up the MN1, MN2, MN* ..  w= to get the n_width and MP0, MP1, MP* ... w= to get the p_width.

In the below ecample for "cellA"

.SUBCKT cellA pin1 pin2
MN2 ........ w=1u l=5u ....
MN0 ........ w=2u l=6u ....
MP0 ........ w=3u l=7u .....
MP1 ........ w=4u l=8u ...
.ENDS
 

Will the n_width of the cellA be: 1+2 = 3u and p_width of the cellA be: 3+4 = 7u

Similarly will the n_length of cellA be: 5+6 = 11u and p_length be: 7+8 = 15u?

Anyone can throw light on this? This is the first time me reading a .cdl file.

 

thanks

R

 

  • Hi,

    CDL is a spice-like netlist format and does not necessarily represent the true width of the cell, if this is what you are trying to calculate. What does summing the N / P length/width give you, what are you looking for?

    Lawrence.

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.