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Altera_Forum
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12 years ago

EPM7128S jtag configuration... pull-ups/downs?

Hi All, The EPF10k10 fpga needs a couple of pull-ups / downs on most of the JTAG pins. Does the same hold for the EPM7128S series? I can't find a document detailing the nitty gritty... Che...
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Altera_Forum
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12 years ago

I can't find anything specific for MAX7000 parts either. However...

These devices work perfectly well in JTAG chains containing Altera FPGAs which do, generally, have guidance on how to pull up/down the JTAG signals. Therefore, they must clearly operate quite happily with the same resistors.

General rule off thumb: 1k pull down on TCK, 1k-10k pull up on TDI and TMS.