Even I am looking for code help. Its Similar to the ISD4002 and if you check / search the forum for ISD4002. Nick has got something on it.

I have just got the PCB's made for the APR60xx and would be testing my code on it. Remember its 4.5V Supply. IO pins should be lower than 4V, Won't work otherwise. I also understand that MISO does not work. Please check.

regards