SLAZ239Q October   2012  – May 2021 MSP430F477

 

  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.      ZQW113
      2.      PN80
      3.      ZCA113
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  CPU4
    2. 6.2  CPU19
    3. 6.3  EEM20
    4. 6.4  FLASH19
    5. 6.5  FLASH24
    6. 6.6  FLASH27
    7. 6.7  FLL3
    8. 6.8  FLL6
    9. 6.9  JTAG23
    10. 6.10 LCDA5
    11. 6.11 LCDA7
    12. 6.12 SDA6
    13. 6.13 TA12
    14. 6.14 TA16
    15. 6.15 TA21
    16. 6.16 TAB22
    17. 6.17 TB2
    18. 6.18 TB16
    19. 6.19 TB24
    20. 6.20 USCI20
    21. 6.21 USCI22
    22. 6.22 USCI23
    23. 6.23 USCI24
    24. 6.24 USCI25
    25. 6.25 USCI26
    26. 6.26 USCI28
    27. 6.27 USCI30
    28. 6.28 USCI34
    29. 6.29 USCI35
    30. 6.30 USCI40
    31. 6.31 XOSC5
    32. 6.32 XOSC8
    33. 6.33 XOSC9
  7. 7Revision History

6.5 FLASH24

FLASH Module

Category

Functional

Function

Write or erase emergency exit can cause failures

Description

When a flash write or erase is abruptly terminated, the following flash accesses by the CPU may be unreliable resulting in erroneous code execution. The abrupt termination can be the result of one the following events:
1) The flash controller clock is configured to be sourced by an external crystal. An oscillator fault occurs thus stopping this clock abruptly.
or
2) The Emergency Exit bit (EMEX in FCTL3) when set forces a write or an erase operation to be terminated before normal completion.
or
3) The Enable Emergency Interrupt Exit bit (EEIEX in FCTL1) when set with GIE=1 can lead to an interrupt causing an emergency exit during a Flash operation.

Workaround

1) Use the internal DCO as the flash controller clock provided from MCLK or SMCLK.
or
2) After setting EMEX = 1, wait for a sufficient amount of time before Flash is accessed again.
or
3) No Workaround. Do not use EEIEX bit.