Unused outputs

[thunderace7]

Hi.
Using a 28X2, I have defined Port A as being all outputs except A.3 which I will use as ADC input. I then send data to the port using let porta=%00000111, for example. As port A only has 4 pins (5, including the one shared with the programming port), and one of them is an input, what happens to the data for the extra pins? Is it just ignored?

 

[inglewoodpete]

The data is stored in the output latches but the outputs of these latches are not connected to the physical pins. Refer to the Microchip data sheet for the PIC18F25K22

 

[thunderace7]

Thank you.