DRA829V: PMIC connections from SoC

Arun M1

Part Number: DRA829V

Team,

Where should the GPIO_4 (PMIC_WAKE1) of PMIC-1(TPS65941213-Q1) to be connected. I could not able to fetch the same from the PDN. Similarly for PMIC-B - GPIO 10 (PMIC_WAKE2).

Thanks

arun

over 3 years ago

0 Robert Eschler over 3 years ago

TI__Mastermind 43780 points

GPIO_4/PMIC_WAKE1 is an used as an external wake input. For example, if system in a low power mode (like Suspend to RAM), signal could be used to wake the system up and back to active mode. GPIO-10/PMIC_WAKE2 is similar function.

0 Arun M1 over 3 years ago in reply to Robert Eschler

Intellectual 665 points

If We are not using the option, can we pull the particular GPIO pin down or is it required to specify some state ?

0 Robert Eschler over 3 years ago in reply to Arun M1

TI__Mastermind 43780 points

Yes - these pins do not force INTO a low-power state, but used to WAKE from low-power state. If unused, the pins can be pulled low.

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DRA829V: PMIC connections from SoC