SLAZ648S February   2015  – May 2021 MSP430F6734A

 

  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
      2.      PN80
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  ADC39
    2. 6.2  ADC42
    3. 6.3  ADC69
    4. 6.4  AUXPMM2
    5. 6.5  BSL7
    6. 6.6  BSL14
    7. 6.7  CPU21
    8. 6.8  CPU22
    9. 6.9  CPU36
    10. 6.10 CPU40
    11. 6.11 CPU46
    12. 6.12 CPU47
    13. 6.13 DMA4
    14. 6.14 DMA7
    15. 6.15 DMA9
    16. 6.16 DMA10
    17. 6.17 EEM8
    18. 6.18 EEM17
    19. 6.19 EEM19
    20. 6.20 EEM23
    21. 6.21 JTAG26
    22. 6.22 JTAG27
    23. 6.23 LCDB5
    24. 6.24 LCDB6
    25. 6.25 PMM7
    26. 6.26 PMM11
    27. 6.27 PMM12
    28. 6.28 PMM14
    29. 6.29 PMM15
    30. 6.30 PMM18
    31. 6.31 PMM20
    32. 6.32 PMM26
    33. 6.33 PORT15
    34. 6.34 PORT19
    35. 6.35 SD3
    36. 6.36 UCS11
    37. 6.37 USCI36
    38. 6.38 USCI37
    39. 6.39 USCI41
    40. 6.40 USCI42
    41. 6.41 USCI47
    42. 6.42 USCI50
  7. 7Revision History

6.15 DMA9

DMA Module

Category

Functional

Function

DMA stops transferring bytes unexpectedly

Description

When the DMA is configured to transfer bytes from the eUSCI_A or eUSCI_B transmit or receive buffers, the transmit or receive triggers (TXIFG and RXIFG) may not be seen by the DMA module and the transfer of the bytes is missed. Once the first byte in a transfer sequence is missed, all the following bytes are missed as well. All eUSCI_A modes (UART, SPI, and IrDA) and all eUSCI_B modes (SPI and I2C) are affected.

Workaround

1) Use Interrupt Service Routines to transfer data to and from the eUSCI_A or eUSCI_B.
OR
2) When using DMA channel 0 for transferring data to and from the eUSCI_A or eUSCI_B, use DMA channel 2 (lower priority than DMA channel 0) to read the same register of the eUSCI_A or eUSCI_B  that DMA channel 0 is working with. Use the same USCI IFG (e.g. UCA0RXIFG) as trigger source for these both DMA channels.