Yes, the I2C communication and the 1-wire IO communication are two separate protocols controlled by the Master (DS2482-100 in this case). The slave devices will only log data to the master when a request to do so has been made.
This request will be made on the 1-wire data rate of 15kbps-115kbps, and only when the request is finished the master will communicate it through the I2C protocol at whatever data rate has been set.