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Standard
In the standard mode, the timing analyzer samples data on the external
analyzer probe at the selected sample rate. Up to 1024 samples can be
stored, and the maximum sample rate is 100 MHz (10 ns intervals).
See figure 5-4.
Glitch
This is the same as the standard acquisition mode except that glitch
information is also stored at each sample. A glitch is detected when
there are two or more transitions on a signal between samples. The
storing of glitch information reduces the number of samples that can be
stored to 512, and the maximum sample rate is 50 MHz (20 ns
intervals). See figure 5-5.
Sample Period
The sample period in the transitional acquisition mode is always 10 ns.
Valid periods in the standard acquisition mode are between 10 ns and
50 ms in a 1/2/5 sequence.
Valid periods in the glitch acquisition mode are between 20 ns and 50
ms in a 1/2/5 sequence.
The accuracy of the sample rate is that of the crystal oscillator,
approximately +/- 0.01%.
Armed By
The "Armed by" field reflects the arm condition of the external
analyzer.
Begin
When "Armed by Begin" is shown, the external analyzer is always
armed. This means that the analyzer can perform measurements at any
time.
Using the External Timing Analyzer 5-9
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