SLAZ758D November   2024  – December 2025 MSPM0G1518 , MSPM0G1519 , MSPM0G3518 , MSPM0G3518-Q1 , MSPM0G3519 , MSPM0G3519-Q1 , MSPM0G3529-Q1

 

  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_06
    2. 6.2  ADC_ERR_10
    3. 6.3  AES_ERR_01
    4. 6.4  CPU_ERR_02
    5. 6.5  CPU_ERR_03
    6. 6.6  FLASH_ERR_01
    7. 6.7  FLASH_ERR_03
    8. 6.8  FLASH_ERR_04
    9. 6.9  FLASH_ERR_05
    10. 6.10 FLASH_ERR_08
    11. 6.11 GPIO_ERR_03
    12. 6.12 GPIO_ERR_04
    13. 6.13 I2C_ERR_04
    14. 6.14 I2C_ERR_05
    15. 6.15 I2C_ERR_06
    16. 6.16 I2C_ERR_07
    17. 6.17 I2C_ERR_08
    18. 6.18 I2C_ERR_09
    19. 6.19 I2C_ERR_10
    20. 6.20 I2C_ERR_13
    21. 6.21 KEYSTORE_ERR_01
    22. 6.22 MATHACL_ERR_01
    23. 6.23 MATHACL_ERR_02
    24. 6.24 PMCU_ERR_09
    25. 6.25 PMCU_ERR_10
    26. 6.26 PMCU_ERR_11
    27. 6.27 RST_ERR_01
    28. 6.28 RTC_ERR_01
    29. 6.29 SPI_ERR_02
    30. 6.30 SPI_ERR_04
    31. 6.31 SPI_ERR_05
    32. 6.32 SPI_ERR_06
    33. 6.33 SPI_ERR_07
    34. 6.34 SRAM_ERR_03
    35. 6.35 SYSCTL_ERR_01
    36. 6.36 SYSCTL_ERR_02
    37. 6.37 SYSCTL_ERR_03
    38. 6.38 SYSCTL_ERR_04
    39. 6.39 SYSOSC_ERR_01
    40. 6.40 SYSOSC_ERR_02
    41. 6.41 SYSOSC_ERR_04
    42. 6.42 SYSPLL_ERR_01
    43. 6.43 TIMER_ERR_04
    44. 6.44 TIMER_ERR_06
    45. 6.45 TIMER_ERR_07
    46. 6.46 UART_ERR_01
    47. 6.47 UART_ERR_02
    48. 6.48 UART_ERR_04
    49. 6.49 UART_ERR_05
    50. 6.50 UART_ERR_06
    51. 6.51 UART_ERR_07
    52. 6.52 UART_ERR_08
    53. 6.53 UART_ERR_10
    54. 6.54 UART_ERR_11
  9. 7Trademarks
  10. 8Revision History

6.14 I2C_ERR_05

I2C Module

Category

Functional

Function

I2C SDA can get stuck to zero if we toggle ACTIVE bit during ongoing transaction

Description

If ACTIVE bit is toggled during an ongoing transfer, the state machine will be reset. However, the SDA and SCL output which is driven by the controller will not get reset. There is a situation where SDA is 0 and the controller has gone into IDLE state, here the controller won't be able to move forward from the IDLE state or update the SDA value. The target's BUSBUSY is set (toggling of the ACTIVE bit is leading to a start being detected on the line) and the BUSBUSY won't be cleared as the controller will not be able to drive a STOP to clear it.

Workaround

Do not toggle the ACTIVE bit during an ongoing transaction.