SLAZ627W September   2014  – August 2021 MSP430FR6972

 

  1. 1Functional Advisories
  2. 2Preprogrammed Software Advisories
  3. 3Debug Only Advisories
  4. 4Fixed by Compiler Advisories
  5. 5Nomenclature, Package Symbolization, and Revision Identification
    1. 5.1 Device Nomenclature
    2. 5.2 Package Markings
      1.      PM64
      2.      RGC64
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC38
    2. 6.2  ADC42
    3. 6.3  ADC43
    4. 6.4  ADC64
    5. 6.5  ADC66
    6. 6.6  ADC67
    7. 6.7  ADC69
    8. 6.8  ADC70
    9. 6.9  ADC71
    10. 6.10 AES1
    11. 6.11 COMP7
    12. 6.12 COMP10
    13. 6.13 CPU21
    14. 6.14 CPU22
    15. 6.15 CPU40
    16. 6.16 CPU46
    17. 6.17 CPU47
    18. 6.18 CS7
    19. 6.19 CS12
    20. 6.20 DMA7
    21. 6.21 EEM19
    22. 6.22 EEM23
    23. 6.23 EEM27
    24. 6.24 EEM30
    25. 6.25 EEM31
    26. 6.26 GC4
    27. 6.27 GC5
    28. 6.28 JTAG27
    29. 6.29 PMM24
    30. 6.30 PMM27
    31. 6.31 PMM31
    32. 6.32 PMM32
    33. 6.33 PORT28
    34. 6.34 REF9
    35. 6.35 RTC10
    36. 6.36 RTC12
    37. 6.37 TB25
    38. 6.38 USCI41
    39. 6.39 USCI42
    40. 6.40 USCI45
    41. 6.41 USCI47
    42. 6.42 USCI50
  7. 7Revision History

6.20 DMA7

DMA Module

Category

Functional

Function

DMA request may cause the loss of interrupts

Description

If a DMA request starts executing during the time when a module register containing an interrupt flags is accessed with a read-modify-write instruction, a newly arriving interrupt from the same module can get lost. An interrupt flag set prior to DMA execution would not be affected and remain set.

Workaround

1. Use a read of Interrupt Vector registers to clear interrupt flags and do not use read-modify-write instruction.

OR

2. Disable all DMA channels during read-modify-write instruction of specific module registers containing interrupts flags while these interrupts are activated.