Wakeable GPIOs on NX

Hello,

We are looking for wakeable GPIOs which can wake up NX from SC7 deep sleep mode. In tegra194-gpio.h, there are 5 GPIOs implemented by AON GPIO controller. In “Jetson_Xavier_NX_Pinmux_Configuration_Template_v1.06.xlsm”, there are 5 GPIOs which are wake pins. Can you please tell us if those 5 wake pin GPIOs are the 5 GIPOs implemented by AON GPIO controller? And are those 5 GPIOs the only GPIOs which can wake up NX from SC7 sleep mode?

Thanks!

hello hecnl4o,

it’s power-on, GPIO3_PEE.04 you may used to wake-up from deep sleep.
you may also check developer guide, please access Chipset Power States and refer to [Deep Sleep (SC7)] session for the wake sources.
please also access pinmux spreadsheets from download center to review the pin configuration.
thanks

Hi, JerryChang,

Thank you for pointing out GPIO3_PEE.04 can be used to wake up NX from SC7!
In our use case, we have multiple peripherals as wake up sources for NX. So we are looking for another GPIO on NX side which can wake up NX from SC7.

Table 12 in Xavier AGX’s OEM product design guide lists all signal wake events on Xavier AGX. However, Xavier NX Product Design Guide does not have information about wake events.

The Chipset Power States section in the developer guide lists 6 wake up sources, which already have their own use cases and cannot be used by new peripherals in OEM board design to wake up NX.

We found GPIO10 is a wake pin from pinmux spreadsheet. Can you please confirm if we can use this GPIO10 to wake up NX from SC7?

Signal name Pin # Ball name Wake Pin
GPIO00 87 USB_VBUS_EN0 Yes
SLEEP/WAKE* 240 POWER_ON Yes
GPIO10 212 SOC_GPIO21 Yes
GPIO02 124 SOC_GPIO23 Yes
HDMI_CEC 94 HDMI_CEC Yes

Thanks for your help!

yes, you’re able to use GPIO10 to wake up NX from SC7.

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Thank you for confirming this!