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

Advisory

During DCAN FIFO Mode, Received Messages May be Placed Out of Order in the FIFO Buffer

Revisions Affected

0, A

Details

In DCAN FIFO mode, received messages with the same arbitration and mask IDs are supposed to be placed in the FIFO in the order in which they are received. The CPU then retrieves the received messages from the FIFO via the IF1/IF2 interface registers. Some messages may be placed in the FIFO out of the order in which they were received. If the order of the messages is critical to the application for processing, then this behavior will prevent the proper use of the DCAN FIFO mode.

Workaround

Use the DMA to read out the FIFO via the IF3 register. Each time a message is received into the FIFO, the data is also copied to the IF3 register, and a DMA request Is generated to the DMA module to read out the data.