SPRZ466C March   2020  – February 2024 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1

 

  1.   1
  2.   TMS320F28002x Real-Time MCUs Silicon ErrataSilicon Revisions A, 0
  3. 1Usage Notes and Advisories Matrices
    1. 1.1 Usage Notes Matrix
    2. 1.2 Advisories Matrix
  4. 2Nomenclature, Package Symbolization, and Revision Identification
    1. 2.1 Device and Development-Support Tool Nomenclature
    2. 2.2 Devices Supported
    3. 2.3 Package Symbolization and Revision Identification
  5. 3Silicon Revision A Usage Notes and Advisories
    1. 3.1 Silicon Revision A Usage Notes
      1. 3.1.1 PIE: Spurious Nested Interrupt After Back-to-Back PIEACK Write and Manual CPU Interrupt Mask Clear
      2. 3.1.2 Caution While Using Nested Interrupts
      3. 3.1.3 Security: The primary layer of defense is securing the boundary of the chip, which begins with enabling JTAGLOCK and Zero-pin Boot to Flash feature
    2. 3.2 Silicon Revision A Advisories
      1.      Advisory
      2.      Advisory
      3. 3.2.1 Advisory
      4.      Advisory
      5.      Advisory
      6.      Advisory
      7. 3.2.2 Advisory
      8.      Advisory
      9.      Advisory
      10.      Advisory
      11. 3.2.3 Advisory
      12.      Advisory
      13. 3.2.4 Advisory
      14.      Advisory
      15. 3.2.5 Advisory
      16. 3.2.6 Advisory
  6. 4Silicon Revision 0 Usage Notes and Advisories
    1. 4.1 Silicon Revision 0 Usage Notes
    2. 4.2 Silicon Revision 0 Advisories
      1.      Advisory
  7. 5Documentation Support
  8. 6Trademarks
  9. 7Revision History

3.2.1 Advisory

Boot-ROM, MPOST: Longer Boot Time With MPOST Enabled

Revisions Affected

0, A

Details

When MPOST functionality is enabled through user OTP, the boot-ROM execution time is around 5 seconds. This is because the boot-ROM executes MPOST with INTOSC clock of 10 MHz, which results in longer boot time.

Workaround

Avoid using boot-ROM supported MPOST and perform necessary memory self-tests as part of application initialization.