SLAZ497H January   2013  – March 2021 MSP430G2744

 

  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.      DA38
      2.      RHA40
      3.      YFF49
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  BCL12
    2. 6.2  BCL16
    3. 6.3  CPU19
    4. 6.4  CPU45
    5. 6.5  EEM20
    6. 6.6  FLASH24
    7. 6.7  FLASH27
    8. 6.8  FLASH36
    9. 6.9  PORT10
    10. 6.10 SYS15
    11. 6.11 TA12
    12. 6.12 TA16
    13. 6.13 TA21
    14. 6.14 TAB22
    15. 6.15 TB2
    16. 6.16 TB16
    17. 6.17 TB24
    18. 6.18 USCI20
    19. 6.19 USCI21
    20. 6.20 USCI22
    21. 6.21 USCI23
    22. 6.22 USCI24
    23. 6.23 USCI25
    24. 6.24 USCI26
    25. 6.25 USCI27
    26. 6.26 USCI30
    27. 6.27 USCI34
    28. 6.28 USCI35
    29. 6.29 USCI40
    30. 6.30 XOSC5
  7. 7Revision History

6.6 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.