Reference Listing Field; Difference Listing Field - HP 1660CS-Series User Manual

The Analyzer Compare Menu

Reference Listing field

Reference Listing field
The Reference listing and Difference listing field is a toggle field that
switches the listing type between the Reference image listing and the
Difference listing.
The Reference listing is a display of the image (or template) that acquired
data is compared to during a comparison measurement. The boundaries of
the image (or size of the template) are controlled by using the channel
masking and compare range functions. Any bits in the reference listing
displayed as "X" have been set to don't care bits during bit editing.
When the data listing is rolled, the difference data listing and the data listing
in the Listing menu are also rolled.

Difference Listing field

The Reference listing and Difference listing field is a toggle field that
switches the listing type between the Reference image listing and the
Difference listing.
The Difference listing is a display of the acquired data listing with the data
that differs, if any, from the Reference listing, highlighted with inverse video.
If the base is inverse-assembled symbols, the entire line is highlighted with
inverse video.
The controls that roll the listing in all three menus (the normal State listing,
the Reference listing, and the Difference listing) are synchronized unless the
number of pre-trigger states differ between the Reference listing and the
acquired data. This means that when you change the current row position in
the Difference listing, the analyzer automatically updates the current row in
the acquired State listing and Reference listing, and vice-versa.
If the three listings are synchronized and you acquire data again, the
Reference listing may have a different number of pre-trigger states
depending on the trigger criteria. The Reference listing can be
resynchronized to the State and Difference listings by entering the desired
state (acquisition memory) location from the front-panel keypad.
This allows you to view corresponding areas of all lists, to cross check
alignment, and to analyze the bits that do not match.
7-68