Now you are complicating things again by writing "and write others". So your single wire is not just used for one-wire protocol - you are also going to write other information using the same wire.

It is often advantageous to use two processor pins for the Dallas/Maxim one-wire interface. This allows both higher drive current and better protection of the processor pins from ESD. One processor pin can drive an open-collector transistor that is used with a pull-up resistor to 5V. The other processor pin can be used as a digital input - possibly with a transistor as level converter. If your processor can work as a SPI master, then you might use the MOSI and MISO pins to handle the one-wire interface.