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Behavior
Use the Pattern trigger to trigger the instrument when the logic inputs cause the selected function
to become True or False. You can also time qualify the trigger—specify that the logic conditions
must be satisfied for a specific amount of time before the instrument triggers.
The instrument input channels represent the data inputs. You can set each channel to be logic high,
logic low, or "don't care". Use the multipurpose knobs to change the threshold voltages for logic
levels other than TTL.
The Pattern Type buttons set the Boolean logic function for the trigger.
Note
The Ch3 and Ch4 controls are only available on 4-channel models.
Logic State Trigger Control Window
To Use
Use these controls to set the State trigger parameters.
Behavior
Use the Logic State trigger to trigger the instrument when all of the logic inputs to the selected
logic function cause the function to be True or False when the clock input changes state.
Channels 1, 2, and 3 represent the data inputs, and channel 4 represents the clock input. (The clock
input is channel 2 on the 2-channel models.) You can set each data channel to be logic high, logic
low, or a "don't care" value. You can set the channel 4 input to a rising or falling clock edge. Use
the multipurpose knobs to change the threshold voltages for logic levels other than TTL.
The Pattern Type buttons set the Boolean logic function for the trigger.
Summary of Contents for TDS5000B Series
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