Stats

  • Locked Locked
  • Replies 10
  • Subscribers 91
  • Views 15796
  • 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

How to connect endcap cell vertically in soc encounter?

Renee

" mce_src="" alt="end cell leftend rightend" border="" hspace="" vspace="" width="" height="" align="" />

  I had some problems with soc encounter's endcap cells.

    In the design, after adding endcap cells to the each end of the row, I want end cells on each row to be connected vertically, for example, left_end_cell1 on row 1 to connect to left_end_cell2 on row 2 and they are both connected to vdd!. 


   As a experiment, I created two cells: ENDCAPL  and ENDCAPR, which contained only nwell, power/ground rails and metal2 pins as vdd! and gnd!, but in soc encounter, when I did sroute, it still route horizontally to the ring, not connecting endcells vertically.

  If I can route power/ground nets like shown in the attached file, then I should use cells as leftend and rightend to do power distribution.
 
 How can I make it connect power/ground nets vertically?

 Thank you very much!

Parents

  • I am sorry that although I inserted the file, it seemed that it is not visible, and I don't know why.

    My idea is :

     It is like after adding stripes, there are power stripes going through the whole design vertically, I want my design to have endcap cells(ENDCAPL(L for left, as Vdd! connection) and ENDCAPR (R for right, as GND! connection)) connected vertically, then in the hierachical view, it looks as if there is a stripe to connect the Vdd! and GND! net from the top of the design to the bottom. 

    I saw that some information about endcap cells the soc encounter user guide, it said that "They are placed at the ends of the site rows, and are used in some technology for power distribution." So, is it possible to force SRoute to route vertically for endcap cells?

     

    Thank you for your help!

     

    Renee

Reply

  • I am sorry that although I inserted the file, it seemed that it is not visible, and I don't know why.

    My idea is :

     It is like after adding stripes, there are power stripes going through the whole design vertically, I want my design to have endcap cells(ENDCAPL(L for left, as Vdd! connection) and ENDCAPR (R for right, as GND! connection)) connected vertically, then in the hierachical view, it looks as if there is a stripe to connect the Vdd! and GND! net from the top of the design to the bottom. 

    I saw that some information about endcap cells the soc encounter user guide, it said that "They are placed at the ends of the site rows, and are used in some technology for power distribution." So, is it possible to force SRoute to route vertically for endcap cells?

     

    Thank you for your help!

     

    Renee

Children
No Data

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.