Custom Solutions Header SMI_SCI_GPIO Pin Source

Working with a NUC DE3815TYKE in Windows 8.1 Embedded Industry.

I have hardware attached to the I2C bus and now require an interrupt to the driver. The SCI_SMI_GPIO pin (10) on the Custom Solutions Header looks like a good candidate to use for this but there is no documentation on which pin this maps back to on the E3815 processor.

This is not documented in the Product Technical Specification, or been posted anywhere that I can find.

Does anyone know the pin?

Thanks

Mark