When I push many descriptors into Queue , how does Queue work?

Hi!

I use FFTC, when I push many(32) descriptors into Queue to set FFTC, and each PKTDMA packet  carry 2048words+header,  how does Queue work?

in other words, push, push, push,...descriptors into Queue, and to get result of FFT by pop, pop, pop...

I want to know is that right?

I know the memory buffer of the FFT engine is divided into three banks and each bank can hold a maximum of 4096 FFT words.

I want to know if all FFT blocks are carried into FFTC buffer simultaneously?

Can you give me some guide or reference about  it?

Thanks!