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SPRZ412N December 2013 – May 2024 TMS320F28374D , TMS320F28375D , TMS320F28376D , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28378D , TMS320F28379D , TMS320F28379D-Q1

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Abstract
1Usage Notes and Advisories Matrices
1. 1.1 Usage Notes Matrix
2. 1.2 Advisories Matrix
2Nomenclature, Package Symbolization, and Revision Identification
3Silicon Revision C Usage Notes and Advisories
1. 3.1 Silicon Revision C Usage Notes
2. 3.2 Silicon Revision C Advisories
  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Advisory
  6. Advisory
  7. Advisory
  8. Advisory
  9. Advisory
  10. Advisory
  11. Advisory
  12. Advisory
  13. Advisory
  14. Advisory
  15. Advisory
  16. Advisory
  17. Advisory
  18. Advisory
  19. Advisory
  20. Advisory
  21. Advisory
  22. Advisory
  23. Advisory
  24. Advisory
  25. Advisory
  26. Advisory
  27. Advisory
  28. Advisory
  29. Advisory
  30. Advisory
  31. Advisory
  32. Advisory
  33. Advisory
  34. Advisory
  35. Advisory
  36. Advisory
  37. Advisory
  38. Advisory
4Silicon Revision B Usage Notes and Advisories
1. 4.1 Silicon Revision B Usage Notes
2. 4.2 Silicon Revision B Advisories
  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Advisory
  6. Advisory
  7. Advisory
  8. Advisory
  9. Advisory
5Silicon Revision A Usage Notes and Advisories
1. 5.1 Silicon Revision A Usage Notes
2. 5.2 Silicon Revision A Advisories
  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Advisory
  6. Advisory
  7. Advisory
  8. Advisory
  9. Advisory
  10. Advisory
  11. Advisory
6Silicon Revision 0 Usage Notes and Advisories
1. 6.1 Silicon Revision 0 Usage Notes
2. 6.2 Silicon Revision 0 Advisories
  1. Advisory
7Documentation Support
8Trademarks
9Revision History

Advisory

SDFM: Comparator Filter Module may Generate Spurious Over-Value and Under-Value Conditions

Revisions Affected

0, A, B, C

Details

When interrupts are enabled in the SDFM comparator module, it may trigger spurious over-value (SDIFLG.IEHx, x = 1 to 4) or under-value (SDIFLG.IELx, x = 1 to 4) conditions. These are depicted as IELx and IEHx interrupt outputs in the “Block Diagram of One Filter Module” figure in the TMS320F2837xD Dual-Core Real-Time Microcontrollers Technical Reference Manual.

Workarounds

For silicon revisions 0 and A – Disable SDFM comparator interrupt sources to avoid spurious events.

For future silicon revisions – These erroneous interrupts can be eliminated by implementing the following workaround:

Comparator OSR (COSR) value should be greater than or equal to 5.
After changing COSR, wait for at least latency of comparator filter and 5 SD-Cx cycles before enabling comparator interrupts SDCPARMx.IEH and SDCPARMx.IEL.