I need help on implementing C code on msp430f2272 for I2c communication with TCA6507 LED controller
While this might no longer be useful to the original poster:
http://www.ti.com/download/aap/zip/ReadMe_and_TCA6507_Gerber.zip
TI has a buried example code for the TCA6507. It is intended for a Stellaris mcu, but is abstract and commented enough to serve as very useful example code.