# :TRIGger Edge Transition Commands

:TRIGger Edge Transition Commands

- :TRIGger:TRANsition:DIRection
- :TRIGger:TRANsition:MODE
- :TRIGger:TRANsition:REND
- :TRIGger:TRANsition:RSTart
- :TRIGger:TRANsition:SOURce
- :TRIGger:TRANsition:TIME

The Edge Transition trigger mode finds any edge in your waveform that violates a rise time or fall time specification.

Edge transitions are identified by looking for signals that cross through two different vertical thresholds in a particular direction, in a certain amount of time. You can configure the direction and time.

Rising edge transitions are measured from the time your waveform crosses the low threshold until the time it crosses the high threshold.

Falling edge transitions are measured from the time the waveform crosses the high threshold until the time it crosses the low threshold.

Use the `:TRIGger:CHANnel:LTHReshold` command to set the low threshold.

Use the `:TRIGger:CHANnel:HTHReshold` command to set the high threshold.