Multiple SPI

Dear Gammon,

Thanks for guiding us through your knowledge.
I am working with Arduino Due and it has 2 SPI modes where I am able to use only one spi i.e.. SPI MODE0 and unable to access MODE1. I came to know that, USART as SPI is another SPI module in Due.

Due to complexity involved in 32 bit SAM3X8E Arm processor, i am unable to achieve this. Please guide me on how to use one of USART in Due as SPI.

Thanks in advance
Omkar