SLAZ194L October   2012  – May 2021 MSP430F4152

 

  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.      RGZ48
      2.      PM64
    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  LCDA3
    9. 6.9  LCDA5
    10. 6.10 LCDA7
    11. 6.11 TA12
    12. 6.12 TA16
    13. 6.13 TA18
    14. 6.14 TA21
    15. 6.15 TAB22
    16. 6.16 USCI20
    17. 6.17 USCI22
    18. 6.18 USCI23
    19. 6.19 USCI24
    20. 6.20 USCI25
    21. 6.21 USCI26
    22. 6.22 USCI28
    23. 6.23 USCI30
    24. 6.24 USCI34
    25. 6.25 USCI35
    26. 6.26 USCI40
    27. 6.27 XOSC5
    28. 6.28 XOSC8
    29. 6.29 XOSC9
  7. 7Revision History

6.11 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.