Thanks for your reply.
Yes, I realize that cc2420 is discrete and the new cc2430 is the Zigbee with 8051 core. Although I have experience with 8051, it is not my current interest to use that instead of PIC.
So my question then is, does Microchip also offer System-On-Chip for Zigbee?
Unfortunately, microchip.com is down (at the time of my writing), and I am rather in hurry. I would like to know if Microchip indeed offers System-On-Chip for Zigbee.
Thanks alot.