Hello

I know that PICs can be powered on through their port diodes.
I have a circuit that uses the USART on a 16F874 to connect to a PC com =
port.
The PIC has the WDT enabled and so if a WDT reset occurs while the comms =
cable
is connected, the PIC is powered up through the port diode while =
resetting.

This seems to cause screwy behaviour after the reset and I'm wondering =
if there is a way around this
problem without electrically isolating the PIC USART pins when =
resetting?

Thanks

Alan=20

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