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IBIS Models Support in Eldo<br />

IBIS Electrical Board Description<br />

digit of the version number is checked, for example 4.x. Setting to YES releases ibischk<br />

constraints on the IBIS version number. Default is NO.<br />

Description<br />

Equivalent subcircuit<br />

For each IBIS instance that represents an IBIS EBD model, Eldo will create an equivalent<br />

subcircuit that contains sets of loss-less/lossy transmission lines and/or discrete RLC<br />

components.<br />

Naming rules<br />

External nodes of the equivalent subcircuit will be generated automatically by Eldo. Each pin in<br />

the EBD model, and each component pin, will be connected to the node in the netlist. The<br />

naming of these pins follows the rules below:<br />

• Board pins:<br />

_<br />

• Component nodes:<br />

_<br />

Note<br />

If a reference designator name is used within the IBIS file, but not mapped in the<br />

IBIS instance then the name used in the EBD file will be used without mapping.<br />

778<br />

Eldo® User's Manual, 15.3

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