SPRUJ91A april   2023  – may 2023 AM68 , AM68 , AM68A , AM68A , TDA4AL-Q1 , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VE-Q1 , TDA4VL-Q1 , TDA4VL-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Contributions to Power
  5. 2How to Use the Tool
  6. 3Use Case
    1. 3.1 Core Processor Utilization
    2. 3.2 Key IP Frequency Selection
    3. 3.3 Memory Interfaces
    4. 3.4 PHYs
    5. 3.5 High Speed Serial Interface
    6. 3.6 Environmental
    7. 3.7 LVCMOS IOs
    8. 3.8 Buttons
    9. 3.9 Starting Use Case
  7. 4Results Sheet
    1. 4.1 Thermal Power Estimate
    2. 4.2 Peak / PDN Power Estimate
  8. 5Three Specific Pre-Loaded Use Case Results
    1. 5.1 ARM Only
    2. 5.2 Superset
    3. 5.3 Valet Park
  9. 6Summary of Power for Pre-Populated Use Cases
  10. 7Revision History

Buttons

The buttons initialize different phases of the power estimation.

  • Reset clears and resets the form as well as clearing results.
  • Populate Use Case – Start any power estimate by using one of the pre-configured representative use cases. This helps to highlight how the tool can be used in a reasonable way (i.e., do not enter 100% for all of the IP on the SoC).
  • Calculate – once the form is completed, calculate to populate data into the results sheet.
  • Save current UC – once the user gets a test case competed, the case can be saved if a UC Name has been supplied. Once saved with a unique name, the case is part of the “Starting Use Case” list and is re-populated with the populate use case button. One particular note about re-populating use cases involves the SerDes and Display Sub-System. A SerDes bandwidth cannot map to the driving IP. As an example, an 8G Lane can be driven by the DSS or PCIe GEN 3. The user must, therefore, configure the SerDes IP and define what outputs the DSS is using. The tool applies loading to the IP designated by the SerDes and the DSS based upon these manual changes.

When each button is pushed, the cells underneath the button (H8:I11) record the start and stop times.


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