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Chapter 2: Task Guide
Choosing the Sampling Mode
Choosing the Sampling Mode
There are two logic analyzer sampling modes to choose from: timing
mode and state mode.
In timing mode, the logic analyzer samples asynchronously, based on
an internal sampling clock signal.
In state mode, the logic analyzer samples synchronously, based on a
sampling clock signal (or signals) from the device under test. Typically,
the signal used for sampling in state mode is a state machine or
microprocessor clock signal.
• “Selecting the Timing Mode (Asynchronous Sampling)” on page 36
• “Selecting the State Mode (Synchronous Sampling)” on page 43
• “In Either Timing Mode or State Mode” on page 52
• “Using 2 GHz Timing Zoom” on page 54
Selecting the Timing Mode (Asynchronous
Sampling)
In timing mode, the logic analyzer samples asynchronously, based on
an internal sampling clock signal.
• “To select the timing mode” on page 40
• “To select the full/half channel configuration” on page 41
• “To select transitional timing or store qualified” on page 37
• “To specify the sample period” on page 42