help me using Serial Peripheral Interface with AVR..

i have some trouble to interface ISD1760PY (soundrecorder IC) with AVR through SPI communication.. i've do some search in google to find some literature that provide information about SPI interfacing.. but i cant have a detail information on it..

i could solve this problem with using arduino as it's already has an SPI library on its IDE.. but.. I'll not get the basic of SPI communication..

could u help me ??

i've attach the datasheet of the device i've been used..