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DRA829 : questions on supply signals and naming

Colombo Carlo
Mastermind 24170 points

Hi everybody , 

-->   what is the diference between  VDD_xxx e VDDAR_xxx   ?   I cannot find it in the manual 

--> what is “VDDS*_MCU”   ?  it is mentioned in TRM  pag 1705  but I cannot find in table 4-124 del DM

thank you 

best regards

Carlo

  • 0
    TI__Mastermind 19030 points

    Hi Carlo,

    -->   what is the diference between  VDD_xxx e VDDAR_xxx   ?   I cannot find it in the manual

    VDDAR_xxx   ---> RAM power supply for the respective domain. Don't know much more, I guess this is to preserve internal RAMs during low power modes.

    --> what is “VDDS*_MCU”   ?  it is mentioned in TRM  pag 1705  but I cannot find in table 4-124 del DM

    Yes, this is not a good description in that section. The meaning should be all MCU domain power supplies must be ON for a sucessful booting.

    Regards,

    Stan