memory mapping 78KOR in CubeSuite++

I am attempting to access the dataflash memory on an R5F100LJ by setting up a memory segment.  The statement "MEMORY MY_FLASH : ( 0F1000H, 02000H )" in the linker directive file results in an error, "RA78KOR error E3116: memory area 'MY_FLASH' definition out of range".  The target file used is DR5F100LJ.DVF.

Can anyone think of what must be set incorrectly?