CCS/MSP430G2553: FLASH

Short answer is yes. using information memory segments B-D is pretty easy but don't expect the segments to last beyond a few thousand erase/write cycles; they're not what I would call ultra-durable. using segment A is little trickier, as misuse can result in loss of calibration data. See chapter 7 of SLAU144J. Controlling the flash controller clock frequency is critical to get proper operation of the erase and write operations and failure to get it right is perhaps the most-often-encountered error wrt flash operations.