SLAZ437K October   2012  – May 2021 MSP430G2453 , MSP430G2453-Q1

 

  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.      RHB32
      2.      N20
      3.      PW20
      4.      PW28
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  BCL12
    2. 6.2  CPU4
    3. 6.3  EEM20
    4. 6.4  SYS15
    5. 6.5  TA12
    6. 6.6  TA16
    7. 6.7  TA21
    8. 6.8  TAB22
    9. 6.9  USCI20
    10. 6.10 USCI22
    11. 6.11 USCI23
    12. 6.12 USCI24
    13. 6.13 USCI25
    14. 6.14 USCI26
    15. 6.15 USCI29
    16. 6.16 USCI30
    17. 6.17 USCI34
    18. 6.18 USCI35
    19. 6.19 USCI40
    20. 6.20 XOSC5
  7. 7Revision History

6.14 USCI26

USCI Module

Category

Functional

Function

Tbuf parameter violation in I2C multi-master mode

Description

In multi-master I2C systems the timing parameter Tbuf (bus free time between a stop condition and the following start) is not guaranteed to match the I2C specification of 4.7us in standard mode and 1.3us in fast mode. If the UCTXSTT bit is set during a running I2C transaction, the USCI module waits and issues the start condition on bus release causing the violation to occur.
Note: It is recommended to check if UCBBUSY bit is cleared before setting UCTXSTT=1.

Workaround

None
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