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Altera_Forum's avatar
Altera_Forum
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13 years ago

JTAG/IO Clamping and Hot-swapping

I am putting Cyclone IV GX on a new board that will be configured using PS. Since all the VCCIOs are 3.3V, I am planning on clamping the the JTAG and PS config signals using a pair of schottkys betw...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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You are correct, those resistors are for source termination.

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Note that if you happen to have to JTAG loads, eg., TCK going to two devices, then use a dual-source termination. See examples in the design I referenced.

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Thank you for your help.

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You're welcome.

Cheers,

Dave