User`s guide

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System Performance Analysis (SPA) Software
System Performance Analysis Software
Start and end conditions need not be adjacent in the data stream. For
example, when the state analyzer sees the specified start condition, it
starts the timer. If the start condition occurs again before the end
condition occurs, the timer will not be reset.
For measurement purposes, the analyzer measures the time between
the first occurrence of the start condition and the first occurrence of
the stop condition.
Time Interval ranges. A maximum of 8 time interval ranges are
available. Each range has a lower and upper limit which can be entered
manually. The Auto-range feature will automatically scale the eight
ranges. The minimum allowable limit is 0ns, the maximum 9,999,999
seconds.
Ranges do not have to be contiguous. However, gaps between ranges
increase the risk of missed data. If two ranges overlap, data will be
counted in both ranges. This applies to any number of overlapping
ranges, or any portions of overlapping ranges. Common boundaries of
adjacent ranges are not considered to be overlapped.
A range can be turned off by setting the lower and upper values to zero.
Auto-range. The Time Interval ranges can be scaled quickly by
selecting "Auto-range." This option requires a global Minimum time and
Maximum time for the eight time interval ranges. The eight ranges are
then scaled using either a log scale or linear scale.
All the ranges may be quickly initialized to off by selecting Auto-range,
setting Minimum time and Maximum time to zero, and performing a
linear scale.
The smallest increment allowable using Auto-scale is 10 ns. If the time
interval defined by the minimum and maximum times is too small to
scale8 ranges, Auto-range will scale as many as possible and exclude
some upper time interval ranges. The maximum resolution of each time
interval is 10 ns.