Specifications

Editing Symbol Graphics 161
moved and set as desired. You then “link” it back to the pin by right-
clicking on the text item and selecting the Link to Pin command. This
associates it with the pin so that it again follows the pin when moved.
IMPORTANT: The Link to Pin command searches for a pin with exactly the
same name as the given text. You cannot link an arbitrary text item to any
pin.
NOTE: There is no rule that says you have to use the “Show Pin Name” feature to
display pin names on the symbol. This is a convenient way of labelling
pins, but does restrict the label to be exactly the same as the logical pin
name. If you wish to use normal text objects to create pin notations, you
can certainly do that, but you will then be responsible for keeping
everything aligned if you move the pins.
 To edit a pin’s name or function, right-click on the pin on the symbol
and select the Properties command. Use the settings on the Pin tab to
change the pin name and function. Alternatively, you can modify a
pin’s name by double-clicking on it in the pin list. See “Setting the Pin
Name” on page 164 for more information on name usage and
restrictions.
Setting the Default Pin Name Prefix
By default, when a new pin is added to the symbol, it is named PINx,
where x is a number that will be incremented automatically. For bus pins,
the default prefix is BUS.
When pins are added from the Symbol Gallery, the existing name of the pin
(i.e. the name it was stored with) is used as the prefix when creating a new
name. See “Using Elements from the Symbol Gallery” on page 163 for
more information.
Placing a Bus Pin
Bus pins allow busses to be connected to the part. A bus pin's functionality
is determined by the internal pins it contains. These can be specified when
the symbol is created, or modified later on the schematic using the Bus Pin
Info command described in “Bus Pins” on page 41.
LW Reference.bk Page 161 Monday, December 15, 2003 5:59 PM