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144User Manual 1317.4726.02 ─ 01
Hold Time
Sets the minimum time after the clock edge while the data signal must stay steady above
or below the data level. The hold time can be negative. In this case, the hold time ends
before the clock edge, and the setup time must be positive and longer than the absolute
value of the hold time.
Remote command:
SEARch:TRIGger:DATatoclock:HTIMe on page 369
10.3.8 Pattern Search
The settings for pattern search are provided in two menus: in the "Setup" menu you define
the channel states, their logical combination and the time range for keeping up the true
result of the state pattern condition; and in the "Source Setup" menu you define the
threshold levels and hysteresis for each channel.
10.3.8.1 Pattern Source Setup
Access: SEARCH MENU > "Search type = Pattern" > "Source Setup"
For pattern search, up to four channels can be used as source. For each channel, the
threshold level and the hysteresis can be set individually.
Source
Selects the channel for which the pattern search is defined.
Level
Sets the threshold value for the selected source channel. If the signal value is higher than
the trigger level, the signal state is high (1 or true for the boolean logic). Otherwise, the
signal state is considered low (0 or false) if the signal value is below the trigger level.
Remote command:
SEARch:TRIGger:PATTern:LEVel<n> on page 371
Hysteresis
Sets a hysteresis range to the level of the selected source channel in order to avoid
unwanted search results caused by noise oscillation around the level. For a rising edge,
the hysteresis is below the search level. Otherwise, for a falling edge the hysteresis is
above the level.
Remote command:
SEARch:TRIGger:PATTern:LEVel<n>:DELTa on page 371
Reference for Search Menu
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