Hi,
I've got question about datasheet's 9.2.1.2 part:
Because the LED acts as a diode, when the LED is off, the I/O VIN is about 1.2 V less than VCC.
My understanding is I/O is configured as input, and LED is off. But why VIN is about 1.2V less than VCC?
Vin is VCC-Vdiode, Vdiode should be less than 0.7V when off, 1.2V is almost on from my understanding.