How to Interface Arduino Severino with RTC 8563P

i'm a novice in this field so need help so far i've been able to work on led, lcd, timer, interrupt and serial comm of arduino severino with ATmega168 now i want to interface 8563 with it so that i can set a time in it, and display the time on lcd for a beginning. on hardware part everything is ready, and i've connected SDA and SCL of 8563 to arduino but on the softwar part, neither i know about instructions nor the libraries(if any) which are to be used. please help me.