Initial and Idle States

NI Digital Waveform Generator/Analyzer Help

Edition Date: June 2013

Part Number: 370520P-01

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The Initial state configures the state of the data generation channels after a session has been configured but before the device starts generating the waveform. The Initial state is often useful while the device is waiting for a Start trigger.

Note Note  The Initial state is not the same as the channel power-up state. For more information about the channel power-up state, refer to the device specifications.

The Idle state configures the state of the data generation channels after the waveform generation has begun and the generation has paused or stopped.

The Initial state and Idle state are per channel selectable. You can select the following values on all NI digital waveform generator/analyzers for data generation channels:

  • 1—Drive the channel to a high level.
  • 0—Drive the channel to a low level.
  • X—Hold last value/Leave the channel at its current state.
  • Z—(NI 654x/655x only) Put the channel in a high-impedance state.
Note  If you use an X Idle state in double data rate (DDR) mode, the last value held is the last valid state of the channel.

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