how can I merge 66mhz pci clock to 33mhz clock?

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Hi,
  I want to design a pci target chip in cpld, and I want it work both in
66mhz and 33mhz pci environment, how can I translate 66mhz pci clock in
33mhz clock in the chip? thanks! I have try 2-bit counter but it seems that
the delay between newlock and original clock posedge is large..
  Thanks a lot!

rat



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