Hello Fernando !
Do you want to store Data in a SRAM,
Flash-EPROM or even on an Harddisk ?

If you want to store data in an SRAM
you have to use the "movx"-command or something equal...

If you want to store data in a FLASH-
eprom you have to decide, what kind of
flash you want to use...

You see, just like Hans wrote, we need
more details...