Peipei Yang

Is the internal reference clock accurate enough to use in the serial communication?

Discussion created by Peipei Yang on May 26, 2007
Latest reply on Aug 4, 2007 by David Payne
Hello, I'm a beginner of HCS08. In my design I have to use the serial communication, but there isn't a external reference clock or oscillator and my program runs in the FLL engaged internal(FEI) mode. In the document of the HCS08, it says we could get a good clock accuracy in this mode rather than a high clock accuracy. Usually the serial communication needs a higher accuracy of the clock, then I want to know whether I could use SCI in the FEI mode. If it is possible to use SCI in the FEI mode, what I should pay attention to?
Any suggestion or explanation will be greatly appreciated. Thank you!