Xilinx Spartan 3 DCM/DFS

I noticed that for Spartan 3 the DCM status does not define bit 2 any more. In Virtex II it meant that the DFS was stopped. Does this mean the DFS never stops? I want to use DFS mode (no CLKFB). How do I know if I need to reset the DCM?



Reply to
Tony C
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STATUS[2] is still the "CLKFX or CLKFX180 Output Stopped Indicator", as shown in XAPP462.

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I see, however, that it's missing from the latest data sheet! I'll file a bug report.

--------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/II/IIE FPGAs

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--------------------------------- Spartan-3: Make it Your ASIC

Reply to
Steven K. Knapp

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