how to set SPC582B DSPI 40bit data frame size?

[TomJRLiu]

Dear ，

       Would you teach me how to set SPC582B DSPI 40bit data frame? 

I use the SPC5Studio-6.0.0-Doyle, you can see my attached picture.

The biggest setting of SPI frame is 32 bits.  

but the data sheet says "programmable serial frame size of 4 to 64 bits, expandable by software control"

Would you teach me how to set SPI frame 40bit?