Yes - I saw there is an internal pullup resistor, but would that not be used if you are using the pin for input/output?
I have a few battery powered gadgets that don't have an external pull-up and they have been very reliable.
The other problem is that by default the pull up resistors are not enabled. Therefore you can't use it until the code is running. The code can't run unless this pin is high. See the problem?
The other problem is that by default the pull up resistors are not enabled
What you mean is that you have not detected any problems with the limited use you have given this project
if the data sheet says something is needed
I meant what I said. In 2.5 years of use the gadgets have all been reliable. Any problem would be recognized by the human.
Sorry but this is a very naive view of reliability.
Which is why I chose to not use an external pull-up on RESET. There is no indication in the datasheet that it is required.
Damn!! Now I am really confused. :~
I have fitted a 10k pullup resistor to the pin...
I have fitted a 10k pullup resistor to the pin... I guess if I have problems I will remove it.
The datasheet also implies that the external-reset signal is directly connected to pin PC6