SandCraft Delivers World's Highest Performance MIPS Processor
SAN JOSE, Calif.--(BUSINESS WIRE)--Oct. 15, 2001--SandCraft Inc.,
a leader in the design of high-performance MIPS® processors, today
announced its first product, a MIPS processor with speed grades up to
800MHz. The SR71000 is sampling now to qualified customers in 600MHz
and 500MHz speed grades, and samples of the 800MHz speed grade will be
available in Q1 2002. With its high frequency capability, large caches
and advanced pipeline architecture, the SR71000 provides the highest
performance of any embedded MIPS processor on the market today. This
scalable architecture will migrate to GHz rates and beyond.
``This is a major milestone in our company's history,'' said Paul
Vroomen, president and CEO of SandCraft. ``This accomplishment
validates our technology and vision, and establishes SandCraft as a
serious and viable vendor of high performance embedded devices for
communications networking and imaging markets.''
The SR71000 is SandCraft's own implementation of the MIPS64
Instruction Set Architecture and incorporates a deeply staged
multi-pipelined design with dynamic branch prediction and low power
consumption. At the heart of the processor is a single MIPS64 CPU
core.
``The performance of high-end embedded applications, such as
control plane management of routers and switches or control of
sophisticated imaging processes, are often constrained by the
performance of the CPU that manages the system,'' said Max Baron,
editor-in-chief, MicroProcessor Report. ``A high-performance,
general-purpose microprocessor such as SandCraft's SR71000 is ideal
for handling complex real-time operating systems in non-deterministic,
highly interrupt-driven environments and consequently can materially
increase the performance of such systems.''
The SR71000 is pin-compatible with current MIPS microprocessors of
lesser performance, which permits easy adoption. By relying on a
verified, stable, proven architecture, SandCraft reduces the risk of
development for its customers and lets them rapidly offer new product
enhancements, and improve system performance, while preserving their
current hardware and software platforms.
``We applaud SandCraft's innovative approach to MIPS-based SoC
design, which has resulted in this exciting new high-speed processor,''
said John Bourgoin, chairman and CEO of MIPS Technologies. ``MIPS
enjoys broad adoption and recognition as an 'industry standard'
architecture, especially within the networking segment of the embedded
electronics industry. By offering the only openly licensable
high-performance embedded architecture, MIPS Technologies gives its
customers, such as SandCraft, the greatest flexibility to develop
innovative next-generation designs. Ultimately, OEMs can also benefit
through reduced time to market.''
The SR71000 provides maximum system performance and reliability,
which are both critical to network equipment makers. This solution
lets OEMs shorten their product development cycles, offer higher value
and differentiate their products. The SR71000 will be followed by a
series of compatible and integrated processors, which will extend the
life cycle of customers' products and preserve their investments.
``The market segments that SandCraft is addressing, Internet
infrastructure equipment and high end office automation, continue to
be significant and advancing,'' said Eric Chen, Ph.D., senior
technology analyst for J. P. Morgan H&Q. ``Control plane processing, in
particular, remains one of the most tangible opportunities for silicon
suppliers aiming at the communications marketplace.''
About the SR71000
SandCraft has carefully crafted the SR71000 to achieve the maximum
speed and efficiency demanded by high performance embedded
applications, such as networking and imaging applications. This
MIPS64-class processor can issue and execute up to six instructions
per clock cycle, into a pipeline that uses out-of-order issue and
dispatch, and in-order retirement. Its highly efficient, two-way
superscalar architecture incorporates dual instruction fetch, dual
dispatch and dual commit, to maintain a throughput of two instructions
per cycle.
The processor has a nine-stage superscalar pipeline for high clock
frequency, with a pipeline-bypass architecture optimized for
minimizing instruction-independent stalls. Its sophisticated, dynamic
branch prediction capability sustains performance with 97 percent
accuracy, by keeping the pipeline fully utilized and minimizing branch
mispredictions. The implementation methodology of the CPU allows it to
be rapidly migrated to more advanced processes and therefore higher
clock frequencies, without necessitating changes to the pipeline
architecture. This ensures that a customer's investment in developing
with this architecture will be protected as process technology
advances.
The SR71000 optimizes system performance and reduces system cost
with integrated on-chip memory, including 32 KB each of primary
instruction and primary data cache; 512 KB of unified secondary cache;
and tertiary cache control, including on-chip tertiary cache tags that
can support up to 16 MB of external tertiary cache using commodity
SRAMs. The 4-way set associative primary caches and 8-way set
associative secondary and tertiary caches provide capacity and rapid
access to critical data and instructions. The processor also supports
cache line locking and prefetching for improved performance.
The SR71000's high performance 64-bit system interface is fully
compatible with existing implementations of the MIPS address and data
interface, known as SysAD, operating at an interface bus frequency of
up to 133 MHz, with split transactions and out-of-order return.
The SR71000 is a fully static design with dynamic energy-saving
features that provide very low power dissipation for its high level of
performance. For example, at clock speeds of 600 MHz, it consumes less
than four watts. At 800 MHz, it will consume less than five watts.
The chip's high performance floating-point unit is fully
MIPS64-compliant and is decoupled from the integer pipeline for
autonomous integer and floating-point operations.
The SR71000 support toolkit includes a comprehensive set of
simulation tools and development boards. The SR71000 leverages
standard third-party software tools, such as compilers from Red Hat,
and embedded operating systems from Wind River, to give developers
programming flexibility along with rapid time-to-market. The SR71000
toolkit includes a development board with Ethernet ports and logic
analyzer connection ports for convenient code development and
debugging; a full set of compilation tools, including an optimizing C
complier from Red Hat optimized specifically for this CPU
architecture; linkers, loaders and libraries; and a full set of
documentation. This toolkit is available now for qualified customers.
SandCraft's manufacturing partner is United Microelectronics
Corporation (UMC), which manufactures the SandCraft SR71000 in a 0.15
um state-of-the-art CMOS copper process with seven levels of metal
interconnect. The 800MHz speed grade part is being built on UMC's 0.13
um process with eight layers of copper interconnect using the low K
dielectric SiLK(TM) process, one of the highest performance processes
in the industry.
About SandCraft Inc.
SandCraft, founded in June 1996, develops and markets advanced
superscalar microprocessors, based on the MIPS Instruction Set
Architecture for use as computing engines in high-performance embedded
applications. These processors are primarily targeted for use in
communications applications, such as control plane processing in
Internet core and edge switch routers. Office automation applications,
such as color laser printers and raster image processing, also utilize
processors of this class. For more information, visit
http://www.sandcraft.com.
Contact:
SandCraft, Inc.
Alfie Gilbert, 408/490-3277
alfie@sandcraft.com
or
Pacifico, Inc.
Patricia Colby, 408/293-8600
pcolby@pacifico.com
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