SLAZ761C July   2025  – October 2025 MSPM0C1105 , MSPM0C1106

 

  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  CPU_ERR_02
    2. 6.2  CPU_ERR_03
    3. 6.3  FLASH_ERR_02
    4. 6.4  FLASH_ERR_04
    5. 6.5  FLASH_ERR_05
    6. 6.6  FLASH_ERR_08
    7. 6.7  I2C_ERR_04
    8. 6.8  I2C_ERR_05
    9. 6.9  I2C_ERR_06
    10. 6.10 I2C_ERR_07
    11. 6.11 I2C_ERR_08
    12. 6.12 I2C_ERR_09
    13. 6.13 I2C_ERR_10
    14. 6.14 PMCU_ERR_13
    15. 6.15 RST_ERR_01
    16. 6.16 RTC_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 SYSCTL_ERR_01
    22. 6.22 SYSCTL_ERR_02
    23. 6.23 SYSCTL_ERR_03
    24. 6.24 SYSOSC_ERR_02
    25. 6.25 TIMER_ERR_04
    26. 6.26 TIMER_ERR_06
    27. 6.27 UART_ERR_01
    28. 6.28 UART_ERR_02
    29. 6.29 UART_ERR_04
    30. 6.30 UART_ERR_05
    31. 6.31 UART_ERR_06
    32. 6.32 UART_ERR_07
    33. 6.33 UART_ERR_08
  9. 7Trademarks
  10. 8Revision History

6.7 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.