Help: Best use of DCM in Spartan-3A?

For my design I must use two DCMs in series. How do I best use the CLKIN,
RST, CLKFX and the LOCKED pin of the DCM?

Should i AND togheter the CLKFX and LOCKED before connecting it to the CLKIN
of the following DCM?

I read that the CLKFX can give glitches, spikes, or other spurious movement
when LOCKED is low. How should I do to avoid these entering the rest of my
design that are clocked from the second DCM?



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Relevant Pages

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  • Re: Best use of DCM in Spartan-3A?
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