Hi Srikanth,
Assuming you are using XMC4200-F64F256 AB model, here is its datasheet: http://www.infineon.com/dgdl/Infineo...3b3cf9b2816573
On page 34 it indicates that fSYS - system frequency - is 80 MHz.
However, you may want to take a look at the reference manual (http://www.infineon.com/dgdl/xmc4100...3b3c44ccd35c20). Starting from page 478 it talks about the Clock Control Unit of SCU - it offers more flexibility in terms of adjusting system clock frequency and, based on system clock frequency fSYS, other clocks (e.g. fCPU).
Hope that helps.
Assuming you are using XMC4200-F64F256 AB model, here is its datasheet: http://www.infineon.com/dgdl/Infineo...3b3cf9b2816573
On page 34 it indicates that fSYS - system frequency - is 80 MHz.
However, you may want to take a look at the reference manual (http://www.infineon.com/dgdl/xmc4100...3b3c44ccd35c20). Starting from page 478 it talks about the Clock Control Unit of SCU - it offers more flexibility in terms of adjusting system clock frequency and, based on system clock frequency fSYS, other clocks (e.g. fCPU).
Hope that helps.