OV7670 ttl camera module interfacing with arduino

Hi friends,

I want to interface my ov7670 ttl camera module with arduino uno which doesn't have Rx-Tx pins.I am using 18 pin 0v7670 camera module.How to interface this with arduino uno i am not getting sample code also for this module.Please give some hint and code how to interface this module.

Regard's Subbu

Camera is VGA CMOS camera.