"Tony C" <tony.casorso@quantum.com> wrote in message
news:92989e5a.0408271105.56c6d4bc@posting.google.com...
> 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?

STATUS[2] is still the "CLKFX or CLKFX180 Output Stopped Indicator", as
shown in XAPP462.
http://www.xilinx.com/bvdocs/appnotes/xapp462.pdf

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
http://www.xilinx.com/spartan3
---------------------------------
Spartan-3:  Make it Your ASIC

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?

Thanks,

Tony