Hi Leily,
CC2543 is a 2.4GHz SoC designed and manufactured by Texas Instruments. This is a Freescale forum and is related to Freescale devices only.
Nevertheless, if you landed on our community page maybe you want to take a look at our Wireless Connectivity products. It cost you nothing and maybe you will choose Freescale for your future projects:
Connectivity|Freescale
Thanks!
Best Regards,
Mihai.