SLAZ367Q October   2012  – May 2021 MSP430FG4617

 

  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.      PZ100
      3.      ZCA113
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC18
    2. 6.2  ADC25
    3. 6.3  CPU8
    4. 6.4  CPU16
    5. 6.5  CPU19
    6. 6.6  DMA3
    7. 6.7  DMA4
    8. 6.8  FLL3
    9. 6.9  FLL6
    10. 6.10 LCDA5
    11. 6.11 LCDA7
    12. 6.12 RTC1
    13. 6.13 TA12
    14. 6.14 TA16
    15. 6.15 TA18
    16. 6.16 TA21
    17. 6.17 TAB22
    18. 6.18 TB2
    19. 6.19 TB16
    20. 6.20 TB18
    21. 6.21 TB24
    22. 6.22 USCI16
    23. 6.23 USCI19
    24. 6.24 USCI20
    25. 6.25 USCI21
    26. 6.26 USCI22
    27. 6.27 USCI23
    28. 6.28 USCI24
    29. 6.29 USCI25
    30. 6.30 USCI26
    31. 6.31 USCI27
    32. 6.32 USCI30
    33. 6.33 USCI34
    34. 6.34 USCI35
    35. 6.35 USCI40
    36. 6.36 WDG2
    37. 6.37 XOSC5
    38. 6.38 XOSC8
    39. 6.39 XOSC9
  7. 7Revision History

6.13 TA12

TA Module

Category

Functional

Function

Interrupt is lost (slow ACLK)

Description

Timer_A counter is running with slow clock (external TACLK or ACLK)compared to MCLK. The compare mode is selected for the capture/compare channel and the CCRx register is incremented by one with the occurring compare interrupt (if TAR = CCRx). Due to the fast MCLK the CCRx register increment (CCRx = CCRx+1) happens before the Timer_A counter has incremented again. Therefore the next compare interrupt should happen at once with the next Timer_A counter increment (if TAR = CCRx + 1). This interrupt gets lost.

Workaround

Switch capture/compare mode to capture mode before the CCRx register increment. Switch back to compare mode afterwards.