User Guide

ADD
Add a symbol to a device. Gate name, swaplevel, and addlevel can be de
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fined in the ADD command in the parameter toolbar, or redefined later
withtheCHANGEcommand.
Theswaplevelspecifieswhetherthereareequivalentgates.
The addlevel defines, for instance, if a gate is to be added to the sche
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matic only on the users request. Example: the power gate of an inte
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gratedcircuitwhichisnormallynotshownontheschematic.
NAME
Changegatename.
CHANGE
Changeswapleveloraddlevel.
PACKAGE
Define and name package variant(s). The PACKAGE command is
started by clicking on the New button in the Device Editor window, or
bytypingonthecommandline. Choosetherequestedpackagevariant.
Moreinformationaboutthiscanbefoundonpage 199.
CONNECT
Definewhichpins(gate)relatetowhichpads(package).
PREFIX
Provide prefix for the component name in the schematic (e.g. R for re
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sistors).
VALUE
In the device mode, VALUE is used to specify whether the component
value can be freely selected from within the schematic diagram or the
layout,orwhetherithasafixedspecification.
On: The value can be changed from within the schematic (e.g. for resi
-
stors). The component is not fully specified until a value has been
assigned.
Off: The value corresponds to the device name, including, when present,
assignmentofthetechnologyandthepackageversion(e.g.74LS00N).
Even if the value is Off, the value of a component can be changed. The
new value is specified after a query checks that the action is intended. If,
however, the technology or the package version is altered at a later stage
by means of CHANGE PACKAGE or CHANGE TECHNOLOGY,
thenthevalueofthecomponentreturnstotheoriginalvalue.
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AFirstLookatEAGLE