Home > Community > Forums > Digital Implementation > location of the level shifter in CPF

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 location of the level shifter in CPF 

Last post Mon, Apr 16 2007 7:23 PM by archive. 1 replies.
Started by archive 16 Apr 2007 07:23 PM. Topic has 1 replies and 1194 views
Page 1 of 1 (2 items)
Sort Posts:
  • Mon, Apr 16 2007 7:23 PM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    location of the level shifter in CPF Reply

    Hi, In CPF, there are two ways to define the location of the level shifters: 1. when defining the level shifter: define_level_shifter_cell -cells cell_list [-valid_location { from | to} 2. when updating the level shifter rule: update_level_shifter_rules -names rule_list -location {from | to} I have two questions: 1. which command option takes precedence over the other if both options have different values? 2. what is the reason behind having this option in both commands in the CPF specification? don't you think that the location option in 'update_level_shifter_rules' is enough to describe the user's intent? Thanks, Khaled


    Originally posted in cdnusers.org by khaled
    • Post Points: 0
  • Mon, May 7 2007 1:19 PM

    • archive
    • Top 75 Contributor
    • Joined on Fri, Jul 4 2008
    • Posts 88
    • Points 4,930
    RE: location of the level shifter in CPF Reply

    -valid_location is the preferred cell location based on the cell design. -location in update_*_rule command is to give user the flexibility to overwrite the -valid_location from cell definition. If both are set, -location takes the precedence. In most cases, -valid_location should be used and
    -location in update_*_rules should only be used in special cases. Hope it clarifies. Thanks
    Qi


    Originally posted in cdnusers.org by qwang
    • Post Points: 0
Page 1 of 1 (2 items)
Sort Posts:
Started by archive at 16 Apr 2007 07:23 PM. Topic has 1 replies.