Specifications

170 Chapter 8—Device Symbol Editing
of the symbol.
Auto-creating Rectangular Symbols
The Auto Create Symbol command will create standard rectangular symbols
given a list of the desired input and output pin names. For maximum flexibility,
the symbol generated consists of separate graphic objects and is completely edit-
able after it is generated.
The current settings for line width, fill patterns, color, text font, size and style,
etc. are used in generating the symbol. The only exception to this is the type
name text placed in the center of the symbol, which is written 3 points larger
than the current setting and in bold.
Selecting the Auto Create Symbol command displays this box:
The pin name boxes will contain the information entered the last time the device
symbol editor was invoked for this part. These can be modified as desired. The
new settings will be merged with pin list when the Generate button is pressed.
Entering Pin Names
The four pin name boxes allow you to specify the names of pins to appear on the
left, right, top and bottom of the device symbol. The syntax described in the sec-
tion, “Adding Sequential Pin Names” on page 149, is also used to define the pin
names and numbers with the following extensions:
 Pins with an inversion bubble can be specified using the “~” character in
front of the name. The “~” will not appear in the symbol.
LW Reference.bk Page 170 Monday, December 15, 2003 5:59 PM