TMS320F28P650DK: FSI communication. Quick question.

Part Number: TMS320F28P650DK

HI guys, I'd like to send data from F28P650DK to F28075 (LQFP 176 pins)  via the highspeed FSI using the P650DK as the Master.

Unfortunatley the F28075 does not have the FSI peripheral but it does have SPI.

I can configure the F28P650DK FSI to use SPI mode but then I lose the high speed of the FSI.

I can't use the McBSP on the F28075 as this uses 6x pins for communication.

Is there another hi-speed communication format between MCU's I could use or am I stuck with SPI protocol because of the F28075 doesn't have FSI.

Please let me know and thanks guys, hope to hear from you soon.

Peter