HP 16550A User Reference page 103

I
The Trigger Menu
Arming Control Field
Arming Control Between Analyzers
If
both analyzers in a module are turned on, you can configure one analyzer
to arm the other. An example of this is when a state analyzer triggers on a bit
pattern, then arms a timing analyzer which captures and displays the
waveform after it triggers.
When you select the analyzer name field in the Arming Control menu shown
below, a pop-up menu appears which you use to select where the Arm In
signal is coming from. In addition, a sequence level number field appears
which you use to select the sequence level in which an "arm" flag is placed.
When an analyzer receives an Arm In signal, an "arm" term is placed in a user
selected sequence level and the analyzer automatically begins evaluating its
trigger sequence instruction. If,
in
the sequence evaluation the "arm" term is
seen first, the analyzer will trigger. However, if the "arm" term is placed
down in the sequence level order, the preceding sequencing could trigger the
analyzer before the "arm" term is seen. Generally, the "arm" term is
evaluated and used the same as the other resource terms within the
sequence instruction.
After you configure the
Arming
Control menu, a graphical representation of
the analyzer arming configuration is displayed as shown below.
1iMifii!IMHel
Trigger- 1 )
Arming Control
~
( Run
Arm
Dll
t
sent. from
Not Used*
*This can be modified in the system Intermodule menu.
Two Analyzer Arming
5-34
Analyzer name