Specifications

Saving Frequently-Used Graphics and Pins 165
TIP: You can also set the pin name, number and function by right-clicking
on the pin graphic or on the name in the list and selecting the Properties
command.
Setting the Pin Number
A four character identifier is displayed in the pin number field. Even though this
is referred to as a number it may contain any valid character. For example, “10”,
“Q4”, “E123”, and “In” are all valid pin numbers. The value entered for the
number is displayed on the stem of a pin.
Setting the Pin Type
The pin type (e.g. input, output, etc.) is selected using the Pin Function pop-up
menu. The pop-up will only be displayed for pins of type “Normal” or “Bus
Internal”. Pins of type “Bus” do not have their own type.
Using the pop-up menu the following functions may be assigned to the pin:
Input, Output, Tristate, Bidirectional, Open Collector, Open Emitter, Tied High,
Tied Low, Latched Input, Latched Output, Clocked Input, Clocked Output,
Clock Input, and No Connect.
The pin type is important to simulation - is this pin driving or driven, and addi-
tionally can be important in error checking and report and netlist generation.
 See Appendix B— Device Pin Types on page 239 for more
information on pin types.
You can apply a new pin type setting to any number of selected pins. If more
then one pin is selected in the pin list then the function pop-up menu will show a
current value only if all selected items are the same. In any case, selecting a new
setting will affect all selected pins.
Displaying the Pin Name
To automatically display the name of a pin next to the pin graphic, you can
either:
 Select the pin and choose the Properties command, then check or uncheck
the Visible box, as desired.
 Right-click on the pin and check or uncheck the Show Pin Name command,
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