11 | Keysight | Infiniium V-Series Oscilloscopes - Data Sheet
Industry’s Leading Hardware Serial Trigger
Challenges identifying and debugging high-speed
serial buses
In today’s high-speed serial application debug, it is not
always easy to find errors that happen rarely or occasionally�
Conventional oscilloscopes usually have limitations because of
the long dead time between acquisitions, which cause infrequent
errors or events to be missed� Furthermore, it is becoming more
difficult to identify and debug the root cause of design problems,
whether it is physical or protocol layer related�
Industry’s longest 160-bit sequence and sixteen-
8b/10b symbols hardware serial trigger
The Infiniium V-Series’ 12�5 Gb/s hardware serial trigger with
the industry’s longest 160-bit sequence provides an effective
event trigger to find and debug the most challenging problems
in your design� You can specify to trigger on bit 1 (high), 0 (low)
and X (don’t care) conditions when searching for a specific event�
The 160-bit sequence length is critical to trigger at the longest
symbol in an application such as USB 3�1 and PCI Express® Gen
3 symbols that are 132-bit and 130-bit long� If the trigger bit
sequence is insufficient, you will not be able to reliably trigger on
an event you want to identify, making the debug process more
challenging�
V-Series’ hardware serial trigger finds a PCI Express Gen 3 compliance
ordered set symbol that is 130-bit long (PCIe Gen 3 uses 128b/130b
encoding)�
The hardware serial trigger also provides 8b/10b triggering
of up to 16 symbols of “K” and “D” codes� Since the 8b/10b
symbols can be transmitted with either disparity to maintain the
DC-balanced on the line, the hardware serial trigger is designed
to trigger on both disparities so you do not miss an event� In
additional, the V-Series can decode the data packet at the
application level such as PCIe Gen 3, USB 3�0 and SATA packets,
providing deeper protocol insight into the application� When
there is an error, you can now go in and debug the issue whether
it is related to the physical layer, where the signal integrity
is corrupted, or protocol layer, where the data is incorrectly
transmitted�
The V-Series’ 8b/10b hardware triggers at 16 “K” and “D” symbols of the
SATA signal� The software protocol decoder further decodes the symbols
into higher-level data packets such as the SATA ALIGN packets�
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