E-paper with xbee

I am trying to configure the XBIB board (SMC) with an e-paper display.
The RAM size of programmable xbee is 2kb while the flash memory is 32kb.

The e-paper(1.54inch) on the other hand requires a frame memory which is more than the RAM but less than flash memory( around 5000 bytes). Is it possible to use the flash memory instead of RAM or are there any other possibilities for xbee and e-paper to integrate?

Khawaja Mustafa