Triggers 10
Agilent InfiniiVision 3000 X-Series Oscilloscopes User's Guide 173
USB Trigger
USB trigger will trigger on a Start of Packet (SOP), End of Packet (EOP)
signal, Reset Complete (RC), Enter Suspend (Suspend), or Exit Suspend
(Exit Sus) on the differential USB data lines (D+ and D- ). USB Low Speed
and Full Speed are supported by this trigger.
1 Press [Default Setup].
2 Press the [Label] key to switch labels on.
3 Turn on any analog or digital channels that you will be using for the
USB signals.
4 Press the [Trigger] key.
Figure 32 Using Field Holdoff to Synchronize to Color Field 1 or 3 (Field 1 mode)
End of packet trigger
D-,+
D+,-
Bus Idle
SEO portion of EOP
SOP
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