Can we increase the data memory for BMXP342020 CPU.
No, Internal RAM Memory for M340 CPU is 4096Kb which contains 3584 KB of memory for Program, constants, symbols and 256 KB of memory for Located/unlocated data. And this memory sizes are fixed and can not be manageable or increased.
User can optimize the memory structure by purging unused variables, efb's & dfb's in your project. Also with the Pack command it is possible to reorganize the memory so as to optimize it.