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

6.42 USCI50

USCI Module

Category

Functional

Function

Data may not be transmitted correctly from the eUSCI when operating in SPI 4-pin master mode with UCSTEM = 0

Description

When the eUSCI is used in SPI 4-pin master mode with UCSTEM = 0 (STE pin used as an input to prevent conflicts with other SPI masters), data that is moved into UCxTXBUF while the UCxSTE input is in the inactive state may not be transmitted correctly.  If the eUSCI is used with UCSTEM = 1 (STE pin used to output an enable signal), data is transmitted correctly.

Workaround

When using the STE pin in conflict prevention mode (UCSTEM = 0), only move data into UCxTXBUF when UCxSTE is in the active state.  If an active transfer is aborted by UCxSTE transitioning to the master-inactive state, the data must be rewritten into UCxTXBUF to be transferred when UCxSTE transitions back to the master-active state.