John,
As indicated by the above responses, the Chipcon 8051 devices are only supported by IAR and we do not have any support in CCS for these parts. There is an evaluation version of the tools available from IAR for free, but I believe this is limited to 30 days (looks like they've recently changed the way they handle evaluation versions again.) You would need to check with IAR to see what options are available. Go to www.iar.com for more info.
John
