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The power domain transition of C6678

YUCHAO WANG
Expert 1265 points


Hello,

        I read some user guide and is confused by some description:

       In Power Sleep controller user guide 2.3.1,it describes that:Always On Power domain is always in the ON state when the device is powered-on,and therefore it is not possible to transition this domain to the OFF state.Conversely,the other domains are in the OFF state when the device is powered-on.Transitions from ON to OFF are never allowed.

       But in C6678 guide 7.3.1,a table show that most of the power domain "Logic can be powered down"or"RAMs can sleep".Is it a contradiction?Or power down is different from power off?

       If they are different,how can we power down a power domain?Can we do it in PSC?

      Thank you very much.

  • 0
    TI__Mastermind 30825 points

    The Power Sleep Controller guide needs to be updated.  Our previous generation of devices did not allow for multiple On/Off transistions.  Domains once turned on must be left on if they were intended to be used in the future (i.e. no turning them on/off/on/off/on ...)

    Best Regards,
    Chad