SLAZ231O October   2012  – May 2021 MSP430F47176

 

  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.      PZ100
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  CPU19
    2. 6.2  CPU44
    3. 6.3  DMA3
    4. 6.4  DMA4
    5. 6.5  DMA13
    6. 6.6  EEM20
    7. 6.7  FLASH19
    8. 6.8  FLASH24
    9. 6.9  FLASH27
    10. 6.10 FLL3
    11. 6.11 FLL8
    12. 6.12 JTAG23
    13. 6.13 LCDA5
    14. 6.14 LCDA6
    15. 6.15 LCDA7
    16. 6.16 TA12
    17. 6.17 TA16
    18. 6.18 TA21
    19. 6.19 TAB22
    20. 6.20 TB2
    21. 6.21 TB16
    22. 6.22 TB24
    23. 6.23 USCI20
    24. 6.24 USCI21
    25. 6.25 USCI22
    26. 6.26 USCI23
    27. 6.27 USCI24
    28. 6.28 USCI25
    29. 6.29 USCI26
    30. 6.30 USCI28
    31. 6.31 USCI30
    32. 6.32 USCI34
    33. 6.33 USCI35
    34. 6.34 USCI40
    35. 6.35 XOSC5
    36. 6.36 XOSC8
    37. 6.37 XOSC9
  7. 7Revision History

USCI40

USCI Module

Category

Functional

Function

SPI Slave Transmit with clock phase select = 1

Description

In SPI slave mode with clock phase select set to 1 (UCAxCTLW0.UCCKPH=1), after the first TX byte, all following bytes are shifted by one bit with shift direction dependent on UCMSB. This is due to the internal shift register getting pre-loaded asynchronously when writing to the USCIA TXBUF register. TX data in the internal buffer is shifted by one bit after the RX data is received.

Workaround

Reinitialize TXBUF before using SPI and after each transmission.
If transmit data needs to be repeated with the next transmission, then write back previously read value:


UCAxTXBUF = UCAxTXBUF;