SLAZ220P October   2012  – May 2021 MSP430F46171

 

  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.      ZQW113
      2.      PZ100
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  CPU8
    2. 6.2  CPU16
    3. 6.3  CPU19
    4. 6.4  DMA3
    5. 6.5  DMA4
    6. 6.6  FLL3
    7. 6.7  FLL6
    8. 6.8  LCDA5
    9. 6.9  LCDA7
    10. 6.10 RTC1
    11. 6.11 TA12
    12. 6.12 TA16
    13. 6.13 TA18
    14. 6.14 TA21
    15. 6.15 TAB22
    16. 6.16 TB2
    17. 6.17 TB16
    18. 6.18 TB18
    19. 6.19 TB24
    20. 6.20 USCI16
    21. 6.21 USCI19
    22. 6.22 USCI20
    23. 6.23 USCI21
    24. 6.24 USCI22
    25. 6.25 USCI23
    26. 6.26 USCI24
    27. 6.27 USCI25
    28. 6.28 USCI26
    29. 6.29 USCI27
    30. 6.30 USCI30
    31. 6.31 USCI34
    32. 6.32 USCI35
    33. 6.33 USCI40
    34. 6.34 WDG2
    35. 6.35 XOSC5
    36. 6.36 XOSC8
    37. 6.37 XOSC9
  7. 7Revision History

6.20 USCI16

USCI Module

Category

Functional

Function

UART/IrDA Mode Lost Characters

Description

When configured for UART/IrDA mode, the USCI baud rate generator may halt operation under the following conditions:
1 - IrDA mode: repeated invalid start bits on the receive line
or
2 - UART/IrDA modes: positive pulse on the receive line during break character reception inside the stop bit time slot (the second stop bit time slot in case of UCSPB=1) with a pulse width that passes the deglitch filter but is shorter than half a bit time.

After halting, additional characters will be ignored. Transmit functionality is not affected.

Workaround

Check the UCBUSY flag status periodically in software. If the flag is set and no character has been received in the expected time, reset the USCI module in software. To reset the USCI module, toggle UCSWRST and re-enable the USCI interrupts.