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Starterware/MSP430FR6972: the question of LPM module

Part Number: MSP430FR6972


Tool/software: Starterware

Hi,sir

 

       I  have some confusion about the difference of LPM0 and LPM1 ,as the same as  the difference of LPM2 and LPM3.  I found  that LPM0 and LPM1 's  function is same identically. Similarly, LPM2 and LPM3 's function is same too. You could find it  from MSP430FR6972's User Guide (Page 48 Table1-2 Operation Modes).  So , I want to know how the differnce is between LPM0 and LPM1,  LPM2 and LPM3 ?

 

 

Best regards

Jent

  • Hello Jent,

    The best place to see the difference between the operating modes is to see which clocking-system bits in the "Status Register" are affected in each LPM. Reference the screenshots below for more information, but the difference between LPM0 and LPM1 is that in LPM1, the SCG0 bit is set, which in turn turns off the FLL. The same difference can be seen for LPM2 and LPM3.

    Hope this answers your question!

    Best regards,

    Matt Calvo

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