spartan3 DCM资料 Application Note: Spartan-3 and Spartan-3L FPGA Families R Using Digital Clock Managers (DCMs) in Spartan-3 FPGAs XAPP462 (v1.1) January 5, 2006 Summary Digital Clock Managers (DCMs) provide advanced clocking capabilities to Spartan-3 FPGA applications. DCMs optionally multiply or divide the incoming clock frequency to synthesize a new clock frequency. DCMs also eliminate clock skew, thereby improving system performance. Similarly,……