SLAZ162J October   2012  – May 2021 MSP430F2131

 

  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.      DGV20
      2.      PW20
      3.      DW20
      4.      RGE24
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  BCL6
    2. 6.2  BCL8
    3. 6.3  BCL9
    4. 6.4  BCL10
    5. 6.5  BCL11
    6. 6.6  BCL12
    7. 6.7  BCL13
    8. 6.8  BCL14
    9. 6.9  BSL5
    10. 6.10 CPU4
    11. 6.11 CPU5
    12. 6.12 CPU6
    13. 6.13 CPU11
    14. 6.14 CPU12
    15. 6.15 CPU13
    16. 6.16 CPU14
    17. 6.17 CPU19
    18. 6.18 CPU45
    19. 6.19 EEM20
    20. 6.20 FLASH16
    21. 6.21 FLASH17
    22. 6.22 FLASH18
    23. 6.23 FLASH19
    24. 6.24 FLASH20
    25. 6.25 FLASH22
    26. 6.26 FLASH24
    27. 6.27 FLASH27
    28. 6.28 FLASH36
    29. 6.29 JTAG15
    30. 6.30 PORT8
    31. 6.31 PORT10
    32. 6.32 SYS15
    33. 6.33 TA12
    34. 6.34 TA16
    35. 6.35 TA21
    36. 6.36 TAB22
    37. 6.37 XOSC5
    38. 6.38 XOSC8
  7. 7Revision History

CPU45

CPU Module

Category

Functional

Function

CPU speed performance limitation

Description

The CPU register contents may become unpredictable during CPU register operations if the device operates at minimum Vcc required for system speed performance above 6MHz when using LFXT1 in HF mode (BCSCTL1.XTS = 1) and sourcing MCLK to clock the CPU under certain conditions. This is dependent on voltage and CPU clock (MCLK) frequency and duty-cycle.

Workaround

With respect to the system speed performance above 6MHz versus minimum required Vcc

1.            Use external clocks with 50% positive duty cycle when sourced to MCLK
                OR
2.            Use internally divided clock for MCLK (BCSCTL2.DIVMx > 00)
                OR
3.            Reduce LFXT1 (used in HF mode) or external clock frequency by 20%  when sourced to MCLK