Agilent Technologies 93000 SOC Series Training Manual page 131

7-4 Defining Pin Groups
Pin Group Definition Editor
New expression based definition
Agilent 93000 SOC Series User Training Part 1, October 2004
Normally it is a good idea to always define groups with:
• all inputs (including the input part of IO pins)
• all outputs (including the output part of IO pins)
These groups are particularly useful for defining level setups.
Consider the following aspects when building pin groups:
• IO pins are listed twice, once as an i, once as an o. For the Levels
setup you may only want one, for Timing and Vector setup you will
typically include both.
Expression-Based Pin Group Definitions
The expression-based pin group definition allows you to define pin
groups by expressions. The expressions are composed of individual
pins, already defined pin groups and operators.
You define the pin group as an expression composed of the pins and
pin groups displayed in the Pinlist and Grouplist and the operators +
(add pin/pin group), - (remove pin/pin group) and * (intersection).
For example, you could define a pin group out_nobus containing all
output pins of the group all_out except for the pins of the group
io_pins:
out_nobus = all_out - io_pins
You define an expression-based in group as follows.
1 Double-click on the Pins icon in the Data Manager setup page.
This brings up the Pin Configuration window.
2 In the Pin Configuration window. select
This brings up the Pin Group Definition Editor
3 In the Pin Group Definition Editor, click on
definition.
This brings up the Expression Based Pin Group Definition window
(Figure 73).
Defining the Pins
Select - groups....
71).
(Figure
new expression based
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