User Guide
***Draft*** Glossary
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part outline
Consists of the symbol for a part (graphics and pins), minus any text.
pin
Contained in parts, ports and off-page connectors. Parts can contain
multiple pins. Each part contains specific pin names associated with
the part. Pins may connect to a wire, a bus or another pin.
pin definition
Provides the pin number, the location of each pin relative to the
symbol origin and the electrical attributes of the pin.
pin name
A name that uniquely identifies the pin on a part.
pin number
The physical device pin number.
pin-to-pin spacing
Determines the size of the symbols as they appear on the printed page.
The distance between pins is set during the initial installation, but may
be changed.
port
Provides connectivity across schematic pages. A port provides the
anchor for a single pin. Ports are chosen from library files, placed,
moved, and deleted in the same way as are parts. Ports may have
multiple connections. Ports consist of three types: global, interface, and
off-page (defined in this Appendix).
primitive symbol
A symbol that is an individual component for a specific netlister. That
is, it is completely specified electrically for the purpose it is required to
perform.
reference designator
An attribute used as a unique name on a given schematic level. For
example, a resistor with the reference designator “R5,” would indicate
that it is the 5th instance of the resistor (R) on a particular schematic.
For package parts, it consists of concatenation of the package’s
reference designator followed by the gate name assigned to the part.
The reference designator is used as a base for the simulation netlist.
Reference designators can be either automatically or manually
assigned. Reference designators represent a unique name used to
reference a physical device. Parts with the same reference designator
are packaged into the same physical device.
schematic
A drawing consisting of the following components: one or more pages,
a set of symbols representing local part definitions, or parts in a library
file and text.