SLAZ578V January   2014  – May 2021 MSP430F67491A

 

  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.      PEU128
      2.      PZ100
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC39
    2. 6.2  ADC42
    3. 6.3  ADC69
    4. 6.4  AUXPMM2
    5. 6.5  BSL7
    6. 6.6  BSL14
    7. 6.7  COMP10
    8. 6.8  CPU21
    9. 6.9  CPU22
    10. 6.10 CPU36
    11. 6.11 CPU37
    12. 6.12 CPU40
    13. 6.13 CPU46
    14. 6.14 CPU47
    15. 6.15 DMA4
    16. 6.16 DMA7
    17. 6.17 DMA9
    18. 6.18 DMA10
    19. 6.19 EEM17
    20. 6.20 EEM19
    21. 6.21 EEM23
    22. 6.22 JTAG26
    23. 6.23 JTAG27
    24. 6.24 LCDB6
    25. 6.25 PMM11
    26. 6.26 PMM12
    27. 6.27 PMM14
    28. 6.28 PMM15
    29. 6.29 PMM18
    30. 6.30 PMM20
    31. 6.31 PMM26
    32. 6.32 PORT15
    33. 6.33 PORT19
    34. 6.34 PORT26
    35. 6.35 SD3
    36. 6.36 SYS16
    37. 6.37 UCS11
    38. 6.38 USCI36
    39. 6.39 USCI37
    40. 6.40 USCI41
    41. 6.41 USCI42
    42. 6.42 USCI47
    43. 6.43 USCI50
  7. 7Revision History

6.26 PMM12

PMM Module

Category

Functional

Function

SMCLK comesup fast on exit from LPM3 and LPM4

Description

The DCO exceeds the programmed frequency of operationon exit from LPM3 and LPM4 for up to 6 us. When SMCLK is sourced by the DCO, it is not masked on exit from LPM3 or LPM4. Therefore, SMCLK exceeds the programmed frequency of operation on exit from LPM3 and LPM4 for up to 6 us. The increased frequency has the potential to change the expected timing behavior of peripherals that select SMCLK as the clock source.

Workaround

- Use XT2 as the SMCLK oscillator source instead of the DCO

or

- Do not disable the clock request bit for SMCLKREQEN in the Unified Clock System Control 8 Register (UCSCTL8). This means that all modules that depend on SMCLK to operate successfully should be halted or disabled before entering LPM3 or LPM4. If the increased frequency prevents the proper function of an affected module, wait 32, 48, 80 or 100 cycles for core voltage levels 0, 1, 2, or 3, respectively, before re-enabling the module. (for example,  __delay_cycles(100)