FuturePlus ®Systems Corporation
Fall 2004
The Bus Analyzer
New Low-cost PCI-X 1.0 Analysis
The FS2338 FBD slot analysis probe features a low vertical profile and minimal circuit loading.
New Probes offer Comprehensive Analysis Solution for FBD
Memory Designers
FuturePlus Systems now offers
three new products for the Fully
Buffered DIMM (FBD) memory
system designer. These versatile
products enable designers to use
their Agilent Technologies logic
analyzer as a FBD memory bus
analyzer. The FBD analysis probes,
coupled with the powerful triggering and analysis capabilities of
Agilent’s state and timing analyzers, provide an extremely effective
and efficient tool for debugging,
testing and verifying products
incorporating FBD memory systems.
FBD systems incorporate a combination of a serial bus and a parallel
bus between the memory controller and the DRAMs. The serial bus
is used for communications between the memory controller and
the Advanced Memory Buffer (AMB)
ASIC on the DIMM. A standard
parallel bus is used from the AMB
chip to the DRAMs on the DIMMs.
FuturePlus developed two types
of products to enable memory
designers to probe activity on both
the serial and the parallel bus,
Choose from two serial-bus styles
Two serial bus models probe the
North and South bound communications between the memory
controller and the AMB chip. Users
may select one or both styles to
accommodate a variety of physical
and electrical constraints on their
particular application.
The FS2338 slot analysis probe
has a low vertical profile and
minimal circuit loading. It is the
best solution for applications that
do not require a fully populated
memory bus.
The FS2343 Interposer Probe
can accomodate a memory device
in its straddle-mount DIMM socket,
allowing users to
Continued on page 2
FuturePlus is a registered trademark of FuturePlus Systems Corporation
FuturePlus Systems now offers a
new passive PCI-X 1.0 Analysis
Probe. The is the latest offering in
the PCI and PCI-X product family.
The FS2010 is designed to connect
to the new Agilent 1680-, 1690and 16900-series logic analyzer
family, as well as many of the
older Agilent state/timing
The FS2010 operates up to 133
MHz for either 32- or 64-bit PCI-X
buses. The analysis probe is
completely passive, enabling
simultaneous protocol decode and
timing analysis.
(Continued on Page 2)
In This Issue
New Probes offer Comprehensive
Analysis Solution for FBD Memory
New Low-cost PCI-X 1.0
Analysis Probe
Connectorless Probing for
TransView – A New Way To Display
Protocol On A Logic Analyzer
© 2004 FuturePlus Systems Corp.
Fully Buffered DIMM Probes
(Continued from page 1)
Related FBD Products from
Agilent Technologies
test a fully populated memory bus.
However, the extender socket
increases the probe’s vertical
profile, and it introduces some
additional circuit loading.
Agilent Technologies now offers
several related FBD tools. They
Both products are connected by 1meter cables to an external logic
analyzer interface board. The external logic analyzer interface
board connects to the Agilent logic
analyzer with standard termination adapters.
The FS2338 and FS2343 both use
the Logic Analyzer Interface (LAI)
function of the AMB to analyze
High Speed Channel transactions
at up to 4.8 Gb/s. The AMB is
controlled with the probe-control
software running on the Agilent
16900 logic analysis system.
Validation DIMM probes traffic
between AMB chip and DRAMs
The FS2340 Validation DIMM lets
you analyze AMB communications
with the SDRAMs on the DIMM.
The FS2340 includes a raw PC
board, similar to the DIMM form
factor. It is designed to allow the
user to install specific DRAMs and
AMBs for their particular testing
purposes. The FS2340 includes
straddle mount logic analyzer connectors, which minimize loading
and allow probing of adjacent
slots. This feature also allows
probing systems with limited
vertical clearance.
Embedded probing resistors minimize stub loading from the routing of the logic analysis connectors, insuring a high potential of
success when using this product in
your system. The FS2340 offers
complete and accurate 800 MT/s
state and timing analysis and provides functional integrity validation of addr/cmd and data transactions. Optional software displays
the addr/cmd and data transactions in standard DDR format.
Please contact FuturePlus Systems
for more details.
The N4234A 4x resistor pack
flying lead probe provides a
convenient method to attach an
Agolent 16900 Series logic analysis system to standard fully buffered DIMM resistor packs.
The N4235A AMB parametric
test fixture provides standard
interfaces to an Agilent logic
analyzer, oscilloscope, vector
network analyzer (VNA), bit error
rate tester (BERT) and pulse generator for characterizing and
troubleshooting AMB’s.
with a PCI-X card inserted into the
probe’s extender socket, a
straddle-mount connector located
at the top edge of the analysis
probe. There are no buffers
between the PCI-X bus and the
interposer/extender card
connector. The etch length from
the system connector to the
interposer is about 1inch and has
matched trace lengths, minimizing
channel-to-channel skew.
The FS2010 can also make PCI bus
measurements. For PCI protocol
decode a separate software
package is required. The FS1103
or FS1110 should be purchased
depending on which logic analysis
system is being used.
The N4236A parametric test
fixture provides a stan-dard
interface to an Agilent oscilloscope, vector network analyzer
(VNA), bit error rate tester (BERT)
and pulse gen erator for characterizing and troubleshooting
standalone FB-DIMMs.
The N4237A interposer probe
enables viewing of data traffic on
industry standard FB-DIMMs with
the Agilent 16900 Series logic
analysis system.
The N4238A slot parametric
probe provides visibility into the
analog characteristics of the
Transmit and Receive channels
from the memory controller to the
AMB using an Agilent oscilloscope,
vector network analyzer (VNA), bit
error rate tester (BERT) or pulse
generator, depending on the type
of measurement needed.
Please contact Agilent Technologies for full details of these products. §
PCI-X (Continued from Page 1)
The FS2010’s interposer/extender
card functionality allows singleslot operation, while also
accommodating full-load testing
The FS2010 PCI-X analysis probe is probing
a tartet system. The PCI-X card under test
is inserted into the FS2010 extender socket.
The FS2010 supports Protocol
Decode of PCI-X bus transactions
with the Agilent 1670G, 16700,
1680, 1690 and 16900-series
logic analysis systems. 32-bit PCI-X
buses (four logic analyzer connectors) require two termination adapters, while 64-bit buses (six logic
analyzer connectors) require three
termination adapters.
To learn more about the FS2010,
the wide variety of Agilent logic
analyzer solutions supported and
which configuration is right for
your measurement needs please
visit the FuturePlus web site at
www.futureplus.com, or call (719)
278-3540. §
TransView – A New Way To Display Protocol On A Logic Analyzer
TransView, a transaction viewer is an exciting new addition to the capabilities of FuturePlus Systems protocol
decode tools. This additional display function shows bus transactions at a higher level of abstraction when
used with Agilent 16900 series of logic analyzers.
FuturePlus TransView Transaction Viewer
The Transaction Viewer as shown in Figure 1 is displaying on a single line (sample 0) 96 ns of data capture. A
traditional logic analyzer display requires 12 separate lines of state information to display the same
A quick glance at the decode transaction in Sample Number 0 shows that the Command is a Memory Read
block, the value of the Address, the value of the Attribute phase is 20FFF800 and that the Termination is a
split response
Figure 1
To view the details regarding the PCI-X Attribute a new line of information can be quickly seen by clicking on
the + symbol in the Attribute box. In Figure 2 we see the display with the details of the Attribute expanded
on a second line. To display the values of the Attribute phase a typical logic analyzer display would require 6
lines to display this same information.
Figure 2
The first bus to include the TransView is PCI-X 2.0 Mode 1. FuturePlus is currently looking for a select group
of users who would be willing to Beta test this exciting new capability. If you are currently using the
FuturePlus FS2009 PCI-X 2.0 analysis probe and an Agilent 16900 series logic analysis system and are
interested in participating in this program please call (719) 278-3540. We would also like to hear from you
regarding other buses that would like to see supported by this exciting new capability. §
Soft Touch Probing for
HyperTransport ™ Apps
FuturePlus now offers the FS2243
HyperTransport analysis probe,
featuring the Agilent Soft Touch
“connectorless” probing technology.
A connectorless probing solution
requires the designer only to place
solder pads on the traces of the
link. This method is easier to
implement on targets with low
layer counts and tight space
For 8-bit links, one connector
attaches to the TX path, while
another connector carries the RX
path. For a 16-bit link both
connectors are used.
then connected to the target by
placing the probe head into the
retention clip, taking care to
maintain polarity, and screwing
down the captive fasteners.
The smaller connectors, simplified
routing, and the ability to place
the connectors on top and on the
bottom of the printed circuit board
provides a maximum flexibility for
probe placement.
Layout guidelines are available on
the FuturePlus website at http://
appnotes/fs2240an.PDF §
Achieve quick, easy, and
repeatable signal access,
without designing in a
Agilent soft touch probes
provide an accurate, reliable
connectorless attachment to
your device.
This probing method also can be
implemented using standard PCB
pad features. Therefore, it can be
designed into a target board at no
additional cost. Connectorless
probing requires no tip resistors
on the target. Soft Touch probing
is capable of operating with a 1.2
GHz clock (2.4 GT/s data rate).
To measure both directions of 16bit links requires two FS2243
analysis probes.
The connectorless probe requires
a retention module to provide its
mechanical support on the target
board. The module is simply
attached to the board by soldering
its legs to the plated throughholes that are part of the footprint
described above. The FS2243 is
Tips and Tricks
When loading our configuration
files onto a 1680- 1690- or 16900series machine, and an information
box pops up reading "The probe
definition in this configuration file
needs to be updated to be compatible with the general purpose
probe feature", this message can
be ignored, just click ok and
continue. The configuration file
will work just fine.
This information box appears
because the Define Probes feature
was replaced by a much better
feature called the General Purpose
Probe feature. The new feature
will be incorporated in new configuration files by the end of this
year. It will show the user which
analyzer pod attaches to each
connector on our probe. It will also
show the signal name and pin
connector number. The user will
be able to access the General
Purpose Probe feature through the
Overview page of the analyzer.
Using the General Purpose Probe
feature, no matter what slot the
cards are in, the pods will automatically be re-mapped and shown
correctly according to the slots in
which the analyzer cards are
installed. §
How to contact Us
The FS2243 HyperTransport Analysis Probe
provides a mechanical connection, electrical
interface and deserializiation of the data
from a HyperTransport link to an Agilent
logic analyzer.
USA Sales Office:
Email: See www.futureplus.com
6455 N. Union Blvd., Suite 202
Colorado Springs, CO 80918 USA
TEL: (719) 278-3540
FAX: (719) 278-9586
Technical Support
15 Constitution Drive
Bedford, NH 03110 U.S.A.
TEL: (603) 471-2734
FAX: (603) 471-2738