Giving Demos of Advanced Tektronix 4000 Features
17. Push the lower-bezel Type button and turn
multipurpose knob a to select Bus.
Type
Bus
Source Bus
B1 (I2C)
Trigger On
Address
Address
50
Direction
Write
Mode
Normal
& Holdoff
18. Push the lower-bezel Source Bus button and
turn multipurpose knob a to select the specific
bus.
Youonlyhavetodefine a bus once. The rest
of the oscilloscope, like the trigger menu, now
knows what it is so yo u do not have to assign
channels or thresholds again in this menu.
19. Push the lower-bezel Trigger On b utton.
Notice the list of trigger choices. The key thing
is th at you can trigger on all the important
components of an I
2
C packet. Prior to this,
you had to hope that the acquisition you were
making contained t he data of interest. Now
you can guarantee it by specifying the trigger
condition.
20. Turn multipurpose knob a to select Address.
21. Push the lower-bezel Address button.
22. The side -bezel Addre s s button should already
be selected.
Address
XX
Tektronix 4000 Oscilloscope Demo In struction Manual 47