SLAZ759A December   2024  – November 2025 MSPM0L1116 , MSPM0L1117

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Functional Advisories
  5. 2Preprogrammed Software Advisories
  6. 3Debug Only Advisories
  7. 4Fixed by Compiler Advisories
  8. 5Device Nomenclature
  9. 6Advisory Descriptions
    1. 6.1  PMCU_ERR_10
    2. 6.2  PMCU_ERR_11
    3. 6.3  PMCU_ERR_13
    4. 6.4  ADC_ERR_05
    5. 6.5  GPIO_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 UNICOMMI2CC_ERR_01
    14. 6.14 I2C_ERR_13
    15. 6.15 SPI_ERR_04
    16. 6.16 SPI_ERR_05
    17. 6.17 SPI_ERR_06
    18. 6.18 SPI_ERR_07
    19. 6.19 SYSOSC_ERR_01
    20. 6.20 SYSOSC_ERR_02
    21. 6.21 TIMER_ERR_04
    22. 6.22 TIMER_ERR_06
    23. 6.23 TIMER_ERR_06
    24. 6.24 TIMER_ERR_07
    25. 6.25 UART_ERR_01
    26. 6.26 UART_ERR_02
    27. 6.27 UART_ERR_03
    28. 6.28 UART_ERR_04
    29. 6.29 UART_ERR_05
    30. 6.30 UART_ERR_06
    31. 6.31 UART_ERR_07
    32. 6.32 UART_ERR_08
    33. 6.33 UNICOMMUART_ERR_09
    34. 6.34 UART_ERR_11
    35. 6.35 FLASH_ERR_02
    36. 6.36 FLASH_ERR_03
    37. 6.37 FLASH_ERR_05
    38. 6.38 FLASH_ERR_08
    39. 6.39 SYSCTL_ERR_01
    40. 6.40 SYSCTL_ERR_02
    41. 6.41 SYSCTL_ERR_04
    42. 6.42 CPU_ERR_02
    43. 6.43 CPU_ERR_03
    44. 6.44 AES_ERR_01
    45. 6.45 KEYSTORE_ERR_01
    46. 6.46 RST_ERR_01
  10. 7Revision History

6.6 I2C_ERR_04

I2C Module

Category

Functional

Function

When SCL is low and SDA is high the Target i2c is not able to release the stretch.

Description

1: SCL line grounded and released, device indefinitely pulls SCL low.

2: Post clock stretch, timeout, and release; if there is another clock low on the line, device indefinitely pulls SCL low.

Workaround

If the I2C target application does not require data reception in low power mode using Async fast clock request, disabling SWUEN by default is recommended, including during reset or power cycle. In this case, bug description 1 and 2 does not occur.

If the I2C target application requires data reception in low power mode using Async fast clock request, enable SWUEN just before entering low power and clear SWUEN after low power exit. Even in this scenario, bug description 1 and 2 can occur when the I2C target is in low power, it will indefinitely stretch the SCL line if there is a continuous clock stretching or timeout caused by another device on the bus. To recover from this situation, enable the low timeout interrupt on the I2C target device, reset and re-initialize the I2C module within the low timeout ISR.