Triggering 4
InfiniiVision Oscilloscopes User’s Guide 139
Hex Bus Pattern Trigger
You can specify a bus value on which to trigger. To do this, first define the bus. See “To
display digital channels as a bus” on page 381 for details. You can trigger on a bus value
whether you are displaying the bus or not.
To trigger on a bus value:
1 Press the [Pattern] key on the front panel.
2 Press the Channel softkey and rotate the Entry knob to select Bus1 or Bus2.
3 Press the Digit softkey and rotate the Entry knob to select a digit of the selected bus.
4 Press the Hex softkey and rotate the Entry knob to select a value for the digit.
5 You can use the Set all Digits softkey to set all digits to a particular value.
When a hex bus digit contains one or more don’t care (X) bits and one or more bit with a
value or 0 or 1, the “$” sign will be displayed for the digit.
For information regarding digital bus display when Pattern triggering see “Bus values are
displayed when using Pattern trigger” on page 384.
If a digit is made up of less than four bits, then the value of the digit will be limited to the
value that can be created by the selected bits.
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