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Altera_Forum's avatar
Altera_Forum
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8 years ago

Are the LVDS terminations react on Pins in which no signal pass ?

Hi, I run simulation of cyclone 5 LVDS signal in Hyperlynx SI using IBIS model created by Quartus compilation. According to the Assignment Editor/PinPlanner the input termination on that pin...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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I see lvds_crin_t100 and lvds_rrin_t100 referenced in .ibs model for the terminated Cyclone 5 LVDS inputs, with or without connected logic. Did you check your IBIS file?

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Yes, I have already checked it before and "lvds_crin_t100" is written near each of the diff pins in the IBIS model.