( ESNUG 442 Item 15 ) ------------------------------------------- [03/24/05]

From: Vishal Gera <vishal.gera=user domain=st spot calm>
Subject: My PrimeTime Generated Constrants Won't Play Nice With PrimePower

Hi John,

I've using PrimePower for power estimation of a chip.  The constraints
file I'm giving to PrimePower has been generated from PrimeTime.  My
problem is the constrants contains commands like create_generated_clock;
which is not supported by PrimePower.

  1) What should be done?  To use create_clock would mean foregoing
     -source and -divide_by options.

  2) What are aspects of constrains that effect power calculations?
     Are aspects such as false paths and multicycle paths affecting
     power calculations?

Is there a good doc for power calculations/estimation on the web?

    - Vishal Gera
      STmicroelectronics

   !!!     "It's not a BUG,
  /o o\  /  it's a FEATURE!"
 (  >  )
  \ - / 
  _] [_     (jcooley 1991)