SLAZ196I October   2012  – May 2021 MSP430F423

 

  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.      PM64
    3. 5.3 Memory-Mapped Hardware Revision (TLV Structure)
  6. 6Advisory Descriptions
    1. 6.1  CPU4
    2. 6.2  EEM20
    3. 6.3  ESP1
    4. 6.4  ESP2
    5. 6.5  ESP3
    6. 6.6  ESP4
    7. 6.7  ESP5
    8. 6.8  FLL3
    9. 6.9  MPY2
    10. 6.10 SD1
    11. 6.11 SD2
    12. 6.12 TA12
    13. 6.13 TA16
    14. 6.14 TA21
    15. 6.15 TAB22
    16. 6.16 US15
    17. 6.17 WDG2
  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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