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16
Chapter 1: Getting Started
Probing and Sampling Mode Selection Steps
Step 2. Choose the sampling mode
There are three logic analyzer sampling modes to choose from: timing
mode, state mode, and eye scan mode.
In timing mode, the logic analyzer samples asynchronously, based on
an internally-generated sampling clock.
In state mode, the logic analyzer samples synchronously, based on a
sampling clock signal from the device under test. Typically, the signal
used for sampling in state mode is a state machine or microprocessor
clock signal.
In eye scan mode, the logic analyzer samples small windows of time
and voltage on data channels around a clock signal from the device
under test. The resulting eye diagrams let you validate and
characterize the data valid windows of signals latched on the clock.
To choose the sampling mode
1. In the Sampling tab, choose Timing Mode, State Mode, or Eye Scan
Mode.