SLAZ763 July   2025 MSPM0H3216

 

  1.   1
  2.   Abstract
  3. 1Functional Advisories
  4. 2Preprogrammed Software Advisories
  5. 3Debug Only Advisories
  6. 4Fixed by Compiler Advisories
  7. 5Device Nomenclature
    1. 5.1 Device Symbolization and Revision Identification
  8. 6Advisory Descriptions
    1. 6.1  ADC_ERR_05
    2. 6.2  CPU_ERR_02
    3. 6.3  CPU_ERR_03
    4. 6.4  FLASH_ERR_02
    5. 6.5  FLASH_ERR_03
    6. 6.6  I2C_ERR_04
    7. 6.7  I2C_ERR_05
    8. 6.8  I2C_ERR_06
    9. 6.9  I2C_ERR_07
    10. 6.10 I2C_ERR_08
    11. 6.11 I2C_ERR_09
    12. 6.12 I2C_ERR_10
    13. 6.13 LFXT_ERR_03
    14. 6.14 LFXT_ERR_04
    15. 6.15 PMCU_ERR_13
    16. 6.16 RST_ERR_01
    17. 6.17 SPI_ERR_04
    18. 6.18 SPI_ERR_05
    19. 6.19 SPI_ERR_06
    20. 6.20 SPI_ERR_07
    21. 6.21 SWD_ERR_01
    22. 6.22 SYSOSC_ERR_02
    23. 6.23 TIMER_ERR_04
    24. 6.24 TIMER_ERR_06
    25. 6.25 UART_ERR_01
    26. 6.26 UART_ERR_02
    27. 6.27 UART_ERR_04
    28. 6.28 UART_ERR_05
    29. 6.29 UART_ERR_06
    30. 6.30 UART_ERR_07
    31. 6.31 UART_ERR_08
  9. 7Trademarks
  10. 8Revision History

6.15 PMCU_ERR_13

PMCU Module

Category

Functional

Function

MCU may get stuck while waking up from STOP2 & STANDBY0 at certain scenario

Description

When there is a pending prefetch access before device transitions to STOP2 & STANDBY0. A pending prefetch access such as a timer has just run to completion and DMA has received the event from the GPIO, in that scenario neither DMA transfer happens nor timer ISR execution takes place as well as CPU gets stuck. This issue arises when WFI instruction is half word aligned, wait state of device is 2 and there is a pending prefetch access before device transitions to LPM.

Workaround

Before going to LPM, customer can disable the prefetch and run some dummy instructions (like shutdown register read or any peripheral read) which doesn't access prefetch so that prefetch can get disabled and doesn't cause the device to hang when waking up from LPM as no prefetch access will be pending.