SLAZ216H October   2012  – May 2021 MSP430F4491

 

  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  ADC9
    2. 6.2  ADC10
    3. 6.3  ADC13
    4. 6.4  ADC18
    5. 6.5  ADC25
    6. 6.6  CPU4
    7. 6.7  FLL3
    8. 6.8  MPY2
    9. 6.9  PORT3
    10. 6.10 TA12
    11. 6.11 TA16
    12. 6.12 TA21
    13. 6.13 TAB22
    14. 6.14 TB2
    15. 6.15 TB14
    16. 6.16 TB16
    17. 6.17 TB24
    18. 6.18 US13
    19. 6.19 US14
    20. 6.20 US15
    21. 6.21 WDG2
    22. 6.22 XOSC9
  7. 7Revision History

MPY2

MPY Module

Category

Functional

Function

Multiplier Result register corruption

Description

Depending on the address of the write instruction, writing to the multiplier result registers (RESHI, RESLO, or SUMEXT) may corrupt the result registers. The address dependency varies between a 2-word and a 3-word instructions.

Workaround

Ensure that a write instruction to an MPY result register (for example, mov.w #200, &RESHI) is not located at an address with the four least significant bits shown in Table 1:

Table 1. Sensitive Addresses for Write Access to MPY Result Registers MAB[3:0]


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