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Glossary
instrument tool. Multiple data sets
can be displayed together when
sourced into a single display tool. The
Filter tool is used to pass on partial
data sets to analysis or display tools.
debug mode
See
monitor
.
delay
The delay function sets the
horizontal position of the waveform
on the screen for the oscilloscope and
timing analyzer. Delay time is
measured from the trigger point in
seconds or states.
demo mode
An emulation control
session which is not connected to a
real target system. All windows can
be viewed, but the data displayed is
simulated. To start demo mode,
select
Start User Session
from the
Emulation Control Interface and
enter the demo name in the
Processor Probe LAN Name
field.
Select the
Help
button in the
Start
User Session
window for details.
deskewing
To cancel or nullify the
effects of differences between two
different internal delay paths for a
signal. Deskewing is normally done
by routing a single test signal to the
inputs of two different modules, then
adjusting the Intermodule Skew so
that both modules recognize the
signal at the same time.
device under test
The system
under test, which contains the
circuitry you are probing. Also known
as a
target system
.
don't care
For
terms
, a "don't care"
means that the state of the signal
(high or low) is not relevant to the
measurement. The analyzer ignores
the state of this signal when
determining whether a match occurs
on an input label. "Don't care" signals
are still sampled and their values can
be displayed with the rest of the data.
Don't cares are represented by the
X
character in numeric values and the
dot (.) in timing edge specifications.
dot (.)
See
edge terms
,
glitch
,
labels
, and
don't care
.
double-click
When using a mouse
as the pointing device, to double-click
an item, position the cursor over the
item, and then quickly press and
release the
left mouse button
twice.
drag and drop
Using a Mouse:
Position the cursor over the item, and
then press and hold the
left mouse
button
. While holding the left mouse
button down, move the mouse to
drag the item to a new location. When
the item is positioned where you
want it, release the mouse button.
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