Configuration
33
Changing Bit Pattern - Each bit of the signal can be toggled between the 3 states of '0', '1' and 'x'
(don't care) by simply clicking on the bit position in the pattern edit area. To set all bits for a signal
to one of these 3 values, use the X, 0 and 1 buttons to the upper-right of the pattern edit area.
Identifier - Change the identifier to something meaningful for the match condition if you do not
want the default "Match #" to be displayed in the formula and the graphical configuration area of
the trigger screen.
Duration - Enter the stability duration by selecting the units then typing the value. The Maximum
Duration period for Model DV3200, DV3209, DV3400 and DV3409 is 5 ms; 10ms for Models
DV3100 and DV3109. The Trigger condition will not be considered as "True" until the selected
signals (and bits) match the pattern for the indicated duration period.
2.3.2.1.1.2 Edge Match
The edge trigger circuit is a 36 (or 72) input OR of rising edge and falling edge detectors. You can
specify a trigger on rising, falling or transition on any combination of channels (rising edge of ALE
or falling edge of OE or falling edge of WT or transition on clock...). All '-' entries for a channel
means "don't care". The Edges Match Editor is displayed below
ADD a Signal - Highlight a defined signal from the left portion of the window and click the "+"
button to add it to the Edges Match. You can also just "Double-Click" the defined signal to
automatically add it. NOTE: High Level signal definitions (such as State, I2C, or etc) cannot be
added directly as a complete signal. However, the individual portions of the signal (such as :CLK
above) can be added in the same manner. To see the sub-portions of a signal, click the "expand"
button in the left column next to the signal's name, then add the sub portions in the same manner
as any other signal.
? 2014 TechTools
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