SPRABF9 March   2019 TMS320C6742 , TMS320C6742 , TMS320C6746 , TMS320C6746 , TMS320C6748 , TMS320C6748

 

  1.   1
  2.   Trademarks
  3. 1Introduction
  4. 2Model Activity
    1. 2.1 Activity-Based Models
    2. 2.2 Baseline Power
    3. 2.3 Activity Power
    4. 2.4 Modules
  5. 3Using the Power Estimation Spreadsheet
    1. 3.1 Choosing Appropriate Values
      1. 3.1.1 Utilization
      2. 3.1.2 % Writes
      3. 3.1.3 % Switching
  6. 4Using the Results
    1. 4.1 Adjusting I/O Power Result
  7. 5Thermal Considerations
  8. 6Example
  9. 7Limitations
  10. 8References

7 Limitations

The current implementation of the power estimation spreadsheet has the following limitations:

  • All measurements have been performed with a 24 Mhz CLKIN provided by an external oscillator. The spreadsheet does not provide a capability of estimating power based on a different CLKIN value.
  • All measurements and calculations are performed with default PLLDIV values. The spreadsheet does not have the capability to change individual PLLDIV values. For example, all modules supplied by SYSCLK2 will operate at half of the input device frequency.