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Opteron Special

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Broadcom Serverworks
HT-2000 HyperTransport SystemI/O Controller

The HT-2000 is targeted at the volume server market with the capability to efficiently span from one-to-eight CPUs without incurring large latencies.

The HT-2000 is a highly-scalable SystemI/O solution for 64-bit/32-bit processors that can be configured to meet OEMs' needs for a variety of product segments. The dual processor configuration shown above can be used for mainstream tower and rack servers. Additional HT-2000 devices can be added to a system to scale to larger multi CPU servers.
The HT-2000 integrates:

Dual Broadcom BCM5714 GbE controller
17 PCI-E links with support for up to four controllers
Full PCI-X 1.0 compliance with up to five bus masters
HyperTransport ports with integrated tunnel
HyperTransport features include:
2-GHz (1-GHz, 2X)
HyperTransport bus interface
CRC generation and error checking
Programmable error checking and handling
Scalable clock speeds as well as support for reduced bit widths of: 8 bits, 4 bits, and 2 bits
16x HyperTransport transfer rates of 2000 Mbps, 1600 Mbps, 1200 Mbps, 1000 Mbps, 800 Mbps, and 400 Mbps, per wire
HyperTransport transfer rates of 1600 Mbps, 1200 Mbps, 1000 Mbps, 800 Mbps, and 400 Mbps, per wire
Link disconnect protocol support
HyperTransport interrupt control and system management support
HyperTransport I/O link specification, Revision 1.05 compliant
The GbE features include:
Dual integrated 10/100/1000/BASE-T transceivers
Dual 10/100/1000 tri-speed, full-duplex/half-duplex MACs
VLAN tag support (IEEE 802.1q)
Layer 2 priority encoding (IEEE 802.1p)
Link aggregation (IEEE 802.3ad)
Jumbo frame support
SMBus 2.0 interface
Broadcom BCM5714 driver compatible
Universal Management Port (UMP) for server management traffic
Programmable rules checker for advanced packet filtering and classification

PCI-E features include:
Configurable I/O with 17 serial links and four masters operating at 2.5 GHz with differential, low-voltage signaling
Recoverable CRC errors with retransmission
64-bit addressing support
Advanced error-detection, error-transmission on destination bus
Integrated bit-error generator and monitor function
PCI-ExpressV1.0 and 1.0a compliant
The PCI-X features include:
Concurrency between
HyperTransport and PCI-X bus
Eight-deep outbound request queue (HyperTransport to PCI-X)
HyperTransport to PCI-X memory write posting
Eight-deep PCI-X to
HyperTransport request queue (PCI-X to main memory transactions)
Parity protection on the PCI-X bus
Integrated PCI-X bus arbitration for up to five PCI-X bus masters
Up to 133 MHz support
Multiprocessing SystemI/O controller for the
HyperTransport-enabled processors offering integration, performance, reliability, availability, scalability, and modularity
Integrates all main server I/O interconnects PCI-E, PCI-X, and GbE
Best-in-class 64-bit performance
HyperTransport-based architecture reduces I/O bottlenecks and improves overall system performance
Best-in-class 64-bit and 32-bit performance
Industry proven reliability and availability
Reusable design methodology used with field-proven functional blocks
Designed for 24/7 enterprise computing uptime
Advanced error detection and correction
Comprehensive driver suite from BCM57XX product family
Extensive scalability
HyperTransport multiprocessor architecture allows superior per processor scalability compared to similar x86 architectures
HyperTransport link widths and clock speeds easily suit cost/performance targets
Multiple HT-2000 SystemI/O controllers deliver plenty of bandwidth and I/O slots
Modular architecture
Modular building blocks allow platform designs that scale from the low-end all the way to high-end
System I/O modularity keeps costs low without sacrificing functionality
Modular design allows more freedom to differentiate from competition
The HT-2000 utilizes the
HyperTransport interconnect to the CPU/host bridge to a variety of South Bridge and I/O bridge solutions. This building block approach enables OEMs to tailor systems to their applications.

Uni, dual, and quad processor servers
Server clusters
Storage systems (NAS)
See also!
Serverworks HT-1000
Processor Recognition
AMD Opteron Page
AA-64 Architecture
Microsoft & x86-64
Windows 64-Bit Special
64-bit Special
AMD Builder Guide
Opteron FAQ
AMD Quick Reference Guide
White Papers
Press Presentation

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