The
Linley Wire
Independent
Analysis of the Networking-Silicon Industry
Volume 6, Issue 16
September 27,
2006
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Editor: Linley
Gwennap
Contributors: Bob Wheeler, Jag
Bolaria, Joseph Byrne
In
This Issue
Missed
our seminar on Embedded Network Security Design? You can download
the proceedings for FREE and get the latest information from Freescale,
AMCC, SafeNet, Cavium, Hifn, Sensory, Tarari, and The Linley Group.
For a complete program listing and download instructions, visit our web
site.
Core
2 Goes Embedded
Yesterday
at IDF, Intel announced its first embedded processor based on its
Core 2 Duo processor. Code-named Merom, this 65nm
processor includes two CPUs operating at 2.16GHz. More important,
these CPUs implement Intel's new 64-bit architecture and deliver
about 10% better per-clock and per-watt performance than the
Pentium-M CPU used in earlier "Dothan" and "Yonah" products.
At 34W TDP and $423, the 2.16GHz Merom targets high-end
control plane, storage, and security applications.
Intel also announced
a less expensive version ("Conroe"), which costs
$217 but burns 65W, mainly for kiosks and other PC-like applications.
Merom offers better single-thread performance than any other
embedded product under 40W, and it includes a fast FPU, SIMD
(SSE3) processing,
64-bit compatibility, and a generous 4MB cache.
Although the new processor fills out the high end of Intel's
embedded line, we expect Merom derivatives to eventually
filter down to
lower price and performance points. For example, a 1.66GHz
version with 2MB of cache should dissipate less than 20W
while offering
better performance than the equivalent Yonah while adding
SSE3 and 64-bit support. Prices for Merom should fall to
about $200
by next summer, although the chip's relatively large die
size may prevent further drops.
Now
that Intel has put more emphasis on performance per watt rather
than just performance, its processors are
becoming more competitive.
Dothan and Yonah compare well against high-end PowerPC
and
AMD processors, and Merom does a bit better. Intel still
lags in integration,
but customers willing to add system logic will get a
performance boost from Merom. —Linley
New
PCI Express Switch Chips
The market for PCI Express (PCIe) switch chips continues to
heat up with two product announcements yesterday at IDF. PLX
Technology
introduced the first 48-port switch chip, and Pericom expanded
its product line with the introduction of multiple switches as
a part of its Packet24 family. These products can be used in
servers, blade servers, embedded systems, and networking applications.
In
servers, these switches can fan-out the PCIe bus to provide more
adapter slots, and in blade servers they can be used on the backplane.
For networking and embedded applications, PCIe switches connect
various peripherals to the host processor. PLX was one of the first companies to introduce PCIe switch
and bridge chips. The company currently offers the broadest
family
of PCIe switches, ranging from 8 lanes to the new 48-lane switch,
the PEX 8548. The PEX 8548 will be useful for high-performance
applications such as peer-to-peer switching and dual-ported
graphics for multi-monitor systems. This device also connects
multiple
coprocessors and I/O devices to an embedded or network processor.
Compared with
PLX's earlier devices, the PEX 8548 improves latency and the
maximum payload size, improving performance.
Pericom is adding a family of PCIe switches to its earlier
4-lane switch. The Packet24 family includes 24-lane, 16-lane,
and 12-lane
devices, each of which can be configured to support different
number of ports. Compared with the PEX 8548, the Packet24
chips support
a similar set of features, including peer-to-peer switching
and cut-through or store-and-forward modes. Pericom plans
to differentiate
its products with features such as weighted-round-robin arbitration
and power-management modes.
Driven
by the economies of scale of the PC platform, PCI Express is
being adopted in non-PC platforms as well as
in embedded
processors. This broad deployment creates opportunities
for PCIe switch vendors
and should create a growing market for the next few years.
With the broadest product line and major design wins, PLX
is the early
leader and continues to expand its product line. Pericom
is following up on its commitment to broaden its product
line
for PCIe switches.
In the next six months, we expect IDT and NEC to deploy
new switch products that offer OEMs more choices for using
PCIe
switching
and thereby increasing the interconnect's deployment across
a diverse range of applications. —Jag
Additional
coverage of PLX and Pericom appears in our report A
Guide to High-Speed Interconnects.
News In Brief Today
at IDF, Intel announced its first 90nm XScale
products, single- and dual-CPU processors that operate as fast
as 1.2GHz. The IOP340
family also provides XOR and RAID6 acceleration, PCI-X and
PCI Express, and 512KB of L2 cache per CPU, making them ideal
for storage
HBAs and high-end RAID controllers. Despite selling most of
its XScale products and design team to Marvell this summer, Intel
says
it will continue to produce IOP products for the storage market.
The fact that Intel codeveloped the new chips with Emulex,
however, shows that Intel's interest in this market may be driven
more by
partners in the future. —Linley
Complete
coverage of Intel's new IOP340 family appears in our new report
A Guide to High-Speed Embedded Processors.
Earlier
this week, Rambus demonstrated and announced
availability of its IP
for PCI Express Gen2, which increases the data rate from
2.5Gbps to 5Gbps. Expected to be finalized at the end
of the year, the
Gen2 standard should be attractive for graphics coprocessors
and 10G Ethernet controllers. The IP from Rambus includes
the PHY and
the digital controller. Rambus was one of the first vendors
to offer IP cores for PCIe PHYs and consequently captured
the most
design wins. Its IP enabled vendors like PLX Technology
to introduce the first PCIe switch products. As a proven
PCIe
supplier and the
first vendor to offer Gen2 IP, Rambus offers a safe path
and is in a good position to win the first wave of Gen2
designs. —Jag
Additional
coverage of Rambus and PCIe Gen2 appears in our report A
Guide to High-Speed Interconnects.
Last week, Solarflare offered
the industry's first demonstration of 10GBase-T or 10Gbps Ethernet
over copper cabling. The startup
demonstrated operation over up to 100m of Cat6a cable and up
to 55m of Cat6 cable. This proof-of concept demonstration
sets the
stage for 10GBase-T products to appear next year. Solarflare
plans to sample a three-chip set, and we expect Teranetics
to sample
competing devices by the end of 2007. Although Solarflare should
be able to generate revenue from reference platforms, the success
of its first commercial product will hinge on its power dissipation.
This initial product will be challenged to meet the industry's
requirement for 5W or less for a 10GBase-T PHY. Further optimizations,
from Solarflare or competitors, are likely to be required before
OEMs commit greater volume to 10GBase-T PHYs. —Jag Additional
coverage of Solarflare and 10GBase-T appears in our report
A Guide to High-Speed Interconnects.
Linley Tech Seminar: Programmable Devices for Network System Design
Join
us on November 1 for a Linley Tech seminar on processors and
FPGAs for network systems. The seminar is designed to help system
designers who are seeking a high-speed embedded processor or
a high-end FPGA for use in networking or communications equipment.
The program features technical presentations from leading suppliers
of these devices as well as new and innovative entrants.
Linley
Gwennap, principal analyst at The Linley Group, will begin the
day with an overview of the embedded processor market and technology
trends, including multicore and multithreaded designs and integrated
coprocessors. AMCC, Cavium, Freescale, IBM, and others will present
their newest processors, including a product that has not yet
been announced, and explain how they can be used in typical networking
applications.
The
afternoon session will begin with Joe Byrne, senior analyst at
The Linley Group, discussing how FPGA vendors are customizing
their products and creating advanced architectures specifically
for network systems. We will then hear Cswitch and other vendors
describe the products and technologies. The day will close with
a panel discussion covering trends in network system design.
The
seminar is targeted at system designers, OEMs, network-equipment vendors,
software developers, service providers, carriers, press,
and the financial community. The seminar is not targeted at chip companies.
Regular
admission is $495, but is free to qualified individuals who register
by October 27. The Linley Group reserves the right to determine
attendee qualification. This
Linley Tech seminar will be held at the Marriott Hotel in Santa
Clara. Space is limited; register today to reserve your place.
This seminar is sponsored by Freescale, AMCC, Cavium, Cswitch, and
The Linley Group.
Report Highlights: High-Speed Embedded Processors
Now
in its 3rd edition, A
Guide to High-Speed Embedded Processors has been extensively revised to cover new products and trends
in the embedded market. In particular,
we examine the shift from standalone to integrated processors
and the shift from single-CPU to multicore. We also provide
market size and market share by vendor, instruction set,
and application.
This edition covers many recent products and events:
- AMCC
expanded its PowerPC lineup with the 405EZ, 440GRx, and 440EPx.
- Freescale
capped off its PowerPC line with the 7448 while introducing
several PowerQuicc
processors, such as the 8349, 8548, 8641, and 8572.
- Intel
introduced the embedded Merom (Core 2 Duo) and new XScale
products such as the dual-core IOP342.
- PMC-Sierra
revised its processor strategy and introduced the MSP7130
and MSP8520.
- Cavium
extended its Octeon line with single- and dual-CPU products.
- Raza
Microelectronics rolled out its XLR processor family, then
acquired the Alchemy MIPS line
from AMD.
- AMD
shipped embedded Sempron, Turion, and Opteron chips.
- Startup
PA Semi disclosed its first product, the PWRficient 1682M.
- SafeNet
entered the processor market with its ARM-based SafeXcel
line.
- Toshiba
dropped the TX9956 but added the TX4939 and TX4951.
- Via
delivered a 2GHz C7 processor for embedded.
Unlike typical market research, this
report provides technology analysis
and head-to-head
product
comparisons. Which processors
will perform best on your application?
What features do they offer to
simplify your design
task? How
is likely is the
company to deliver on its roadmap?
Only The Linley Group's unique
technology analysis can provide this forward-looking
view. We separate the fact from
fiction
and provide
the technology
analysis
you need to make informed business
decisions.
For more information on this new edition, visit our web site.
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