Specifications

150 Chapter 8—Device Symbol Editing
The Add Pins command displays the following box:
Pin names, and optionally their pin numbers, may be entered into the box. The
pins are created and merged with the contents of the pin list when a carriage
return or enter key is pressed or when the Add button is clicked. The Add Pins
palette does not create graphic pins, only pins for the pin list.
The created pins are merged with the names in the pin list. If a like named pin
already exists in the list then it may be reordered to appear in the same order as
in the Add Pins palette. If a pin being added has a pin number defined then this
pin number will replace the pin number in the like named pin.
Syntax for Pin Names in Add Pins
Here are the rules for how a list of pin names is entered:
 Pin names may be up to 16 characters long.
 Normal pin names (that is, not bus pins or bus internal pins) may be
specified as individual names, e.g.: A B C D, or as sequences, e.g.: A0..3.
After each pin name or pin name sequence an optional pin number
specification is allowed.
 A pin number specification defines the pin number(s) associated with the
proceeding pin name or pin name sequence. The specification starts with an
( and ends with an ). For a single pin name the pin number specification
should contain a single number. For a pin name sequence multiple numbers
and sequences may appear between the brackets.
 In the picture above CLK and OE both define normal pin names which have
pin numbers 10 and 17, respectfully. The sequence A0..7 defines the pin
LW Reference.bk Page 150 Monday, December 15, 2003 5:59 PM