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Chapter 2: Task Guide
To select transitional timing or store qualified
To select transitional timing or store qualified
1. In the Sampling tab with Timing Mode selected, select the Transitional
Timing with Store Qualification configuration.
Transitional Timing
In Conventional Timing Acquisition mode, the analyzer stores
measurement data at each sampling interval. In Transitional Timing
Acquisition mode, the timing analyzer samples data at regular intervals,
but only stores data when there is a threshold level transition. Each
time a level transition occurs on any of the bits, data on all channels is
stored. A time tag is stored with each stored data sample so the
measurement can be reconstructed and displayed later.
NOTE: Transitional timing or store qualified timing, requires time tags to recreate the
data. Time tags are either stored in the memory resources of an unused pod
pair, or they are interleaved with the data in memory. If tags are interleaved
with the data, available memory depth is reduced by half.
Store Qualified Timing
Store qualified timing allows you to specify what data is stored during
the course of an acquisition. The level of data qualification can be
simple (Store Anything or Store Nothing), or more complex (Custom).
For information on setting up store qualification, refer to To specify
default storing (see page 71)
See Also
“More on Storing Transitions” on page 38
“Transitional Timing Considerations” on page 39
“Default Storing Subtab” on page 156