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Altera_Forum's avatar
Altera_Forum
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13 years ago

Cyclone III Configuration Advice Required...

Hi All, I am just about to start the design & layout for my first CYCLONE III based board using the EP3C10E144C8N device. I have read a good deal on the EPCS app notes but would like some feedb...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Your design sounds good.

Regarding the JTAG interface; my personal preference is to buffer it using TinyLogic buffers from Fairchild (TI have similar parts). They can handly 7V overshoot and so are very tolerant of JTAG cable over-shoot due to poorly terminated transmission lines. At a minimum add 100-ohm series resistor on each of the signals.

Cheers,

Dave