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Using the Trigger Menu
Specifying a Basic Trigger
To define a term
Both default triggers trigger on term "a". If you only need to look for the
occurrence of a certain state, such as a write to protected memory,
then you only need to define term "a" to make the measurement you
want.
1In the Trigger menu, select the field at the intersection of the
term and the label whose value you want to trigger on.
You set labels in the Analyzer Format menu. If the channels you want
to monitor are not attached to a label, they will not appear in the
trigger menu.
2Enter the value or pattern you want to trigger on.
If the label’s base is Symbol, a pop-up menu appears offering a choice
of symbols. For other bases, use the keypad. An "X" stands for "don’t
care".
If there are two conditions that need to be present at the same time, for
example a protected address on the address bus and a write on the
read/write line, define both values on the same term. See the figure
below.
3Press Done.
Term "a" Defined as a Data Write to Read-Only Memory