SLAZ211I October   2012  – May 2021 MSP430F439

 

  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.      PN80
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC18
    2. 6.2  ADC25
    3. 6.3  CPU4
    4. 6.4  DAC4
    5. 6.5  EEM20
    6. 6.6  FLL3
    7. 6.7  TA12
    8. 6.8  TA16
    9. 6.9  TA21
    10. 6.10 TAB22
    11. 6.11 TB2
    12. 6.12 TB16
    13. 6.13 TB24
    14. 6.14 US14
    15. 6.15 US15
    16. 6.16 WDG2
    17. 6.17 XOSC5
    18. 6.18 XOSC9
  7. 7Revision History

6.10 TAB22

TAB Module

Category

Functional

Function

Timer_A/Timer_B register modification after Watchdog Timer PUC

Description

Unwanted modification of the Timer_A/Timer_B registers TACTL/TBCTL and TAIV/TBIV can occur when a PUC is generated by the Watchdog Timer(WDT) in Watchdog mode and any Timer_A/Timer_B counter register TACCRx/TBCCRx is incremented/decremented (Timer_A/Timer_B does not need to be running).

Workaround

Initialize TACTL/TBCTL register after the reset occurs using a MOV instruction (BIS/BIC may not fully initialize the register). TAIV/TBIV is automatically cleared following this initialization.

Example code:

   MOV.W #VAL, &TACTL
or
   MOV.W #VAL, &TBCTL

Where, VAL=0, if Timer is not used in application otherwise, user defined per desired function.