User's Manual

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Chapter 2: Task Guide
To select transitional timing or store qualified
To select the state mode
1. Open the logic analyzer Setup window.
2. Select the Sampling tab.
3. Choose the State Mode option.
You can also select the state sampling mode in the “Pod Assignment
Dialog” on page 130.
To select the 200 MHz/400 MHz state speed configuration
1. In the Sampling tab, with State Mode selected, select the state analyzer
configuration. You can choose between:
• 200 MHz / 4M State
In this configuration, all pods are available.
Memory depth is 4M samples per channel. If time or state count is
turned on in Trigger Settings, the total memory is split between data
acquisition storage and time or state count storage. To maintain the full
memory depth of 4M samples per channel, leave one pod pair
unassigned. (To unassign a pod pair, select the Pod Assignment button
in the Format tab, then drag a pod pair to unassigned.)
State clock speed matches your device under test's clock, up to 200
MHz.
• 400 MHz / 4M State
This configuration is similar to the 200 MHz State mode, except
clocking is restricted to the J clock on Pod 1 of the master card of the
module, and triggering is restricted to two trigger functions.
NOTE: When Store Qualification is performed in the 400 MHz State mode, there may
be the case where data occupying memory is further disqualified. As a result,
you may see a non-contiguous listing of states as well as a reduction of usable
memory.
To change the sampling clock mode
Normally, in the Master only sampling clock mode, there is one
sampling clock signal. When a clock edge occurs, data is captured and