How to implement long delay with SPI-RAM in ADAU1452

Hi everyone,


          I'm developing the audio device,for which the long delay(more than 8s at the sample rate of 96K),with ADAU1452.Obviously,this kind of delay samples is not allowed to storage to the on-chip RAM of the 1452.

          And it seems the off-chip RAM with SPI interface is supported in 1452.But I can hardly find any document about how to realize it.

          Can anyone offer me any suggestion about it?And it will be very much appreciated.

Best Regards,