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Altera_Forum
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16 years ago

DCLK after config in PS mode

We're doing a design where we're planning on configuring a EP3C5 using passive serial from a micro controller. We're limited by the number of interconnects and I was wondering about the possibi...
Altera_Forum's avatar
Altera_Forum
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16 years ago

Oh yes, it seems that only the DATA[0] can be used as a dual purpose pin in the PS configuration.

If you have a look at the cyclone iii configuration (http://www.altera.com/literature/hb/cyc3/cyc3_ciii51016.pdf) in the handbook, page 9-37, you can see that the Cyclone III on the left continues to see it's DCLK toggling after it has been configured, when the one on the right is receiving its own configuration. So I would guess that it would be ok. It would need to be tested to be sure it's not a problem, though.