Hello, Thank you for contacting the Technical Support Team,
Yes, it is possible if you write on the register ADM_SHFT “10100” you will have IFC with 20 bit Address,
On the other hand writing on the register ADM_SHFT_ MODE “0” or “1”you will be able to you can switch to less significant and more significant directions.
I attach some referenced images obtained from the reference manual.
Best Regards,
Hector Villarruel S