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SPI Peripheral Pin Multiplex?

Hi-

I am using the TMS3206674 DSP and have a problem with the SPI interface to our NOR flash.  I have inadvertently swapped the DIN and DOUT lines going into the processor.  Based on SPRUGP2A, it appears that there is a MUX at the pin level; is there any way of using this to correct the routing issue (i.e., can I change SPISIMO to master data in and SPISOMI to master data out within the processor)?

I'm really hoping I can avoid a PCB revision if at all possible.

Thank you for your assistance,

Nate