I am trying to use the port 10 as an input on the Pioneer Kit L. But for some reason I am not able to use them since something, or for some reason they are high every time. I believe the U10 (the level translator) has something to do. And I am wondering if removing this level translator would fix this? Why are these ports high (from 10.0 to 10.3) high when nothing is connected to the level translator?
The level translator has an internal pull-up resistor as mentioned in the datasheet (Page 19) -
This might be the reason why a logic high is observed when the Port 10 pins are in high impedance state. But I was still able to use it as an input pin. When the pin is pulled down, logic 0 is detected.
Hope this helps,
Thanks and Regards,
Rakshith M B