Hi Team,
We are using MIMXRT1176CVM8A in our design whose SNVS bank's GPIO are not Tamper pins. We are not connecting battery to VDD_SNVS_IN since we have separate battery backed up RTC interface to the controller.
We have connected 3.3V external supply to VDD_SNVS_IN. The output of the VDD_SNVS_ANA is 1.8V which is given to NVCC_SNVS supply.
However, owing to GPIO shortage in our design, we are thinking of using the SNVS Bank's GPIO as normal GPIO pins.
But if we connect the VDD_SNVS_ANA to NVCC_SNVS, then the max source/sink capability of the all the pins of SNVS bank comes to 1mA which is way below what we need.
Hence, we are thinking of connecting external VDD_1V8 to the NVCC_SNVS.
Can you please look into this and suggest if it can be done.?
Our intention is to connect external 1.8V to NVCC_SNVS and make use of the SNVS Bank's GPIO to have higher current drive capability to drive the MOSFET drivers of LEDs
