Product category:
Communications ICs (Wired)
News Release from: Alliance Semiconductor Corp | Subject: AS90L10208
Edited by the Electronicstalk Editorial
Team on 31 March 2004
Bridge chip optimised for embedded
applications
The AS90L10208 HyperTransport-to-PCI/PCI-X bridge is designed and optimised for bandwidth- and performance-intensive embedded applications in communications, networking, servers and storage systems.
The AS90L10208 HyperTransport-to-PCI/PCI-X bridge is designed and optimised for bandwidth- and performance-intensive embedded applications in communications, networking, servers and storage systems The AS90L10208 is completely interoperable with the HyperTransport (HT) interface on the new generation of leading embedded and compute microprocessors from AMD, Broadcom, PMC-Sierra and Transmeta
This article was originally published on Electronicstalk on 22 Dec 2003 at 8.00am (UK)
Related stories
RPR controllers feature adaptive computing
Alliance Semiconductor Corp has developed a novel family of resilient packet ring (RPR) controllers.
Bridge chip brings HyperTransport to PCI-X
The high-performance AS90L10204 HyperTransport-to-PCI-X bridge is optimised for computing applications including workstations, computer servers, server blades, workstations and desktop PCs.
The AS90L10208 allows system architects to leverage the performance of these leading microprocessors while still maintaining compatibility with legacy systems.
The AS90L10208 bridges the HT interface from these microprocessors to a standard 64bit PCI/PCI-X bus, enabling them to tap into the vast infrastructure of peripherals and system components based on PCI and PCI-X such as network interface cards, RAID controllers, host bus adapters and others.
"The AS90L10208 provides system architects with an unlimited set of design options that require the high performance, high bandwidth and high efficiency of the HT bus with the capability to tap into the vast infrastructure of peripherals and system components based on PCI and PCI-X", said Robert Napaa, Vice President of Marketing and Business Development for Alliance's System Solutions Business Unit and Vice President of the HyperTransport Technology Consortium.
Further reading
Supervisors to manage next-generation systems
Alliance Semiconductor Corp has released its first 13 CPU supervisor product families.
Supervisors gain edge-triggered manual reset
Alliance Semiconductor has developed a pair of CPU supervisor products for the mobile and portable market.
The AS90L10208 has two 8bit HT ports that operate at frequencies up to 800MHz DDR in both transmit and receive directions and sustains a total aggregate bandwidth up to 25.6Gbit/s per HT port.
The single 64bit PCI/PCI-X 1.0b bus operates at frequencies of 25, 33, 50, 66, 100 and 133MHz.
This 64bit PCI/PCI-X bus can be configured to operate as two totally independent 32bit PCI/PCI-X buses, enabling system design engineers to accommodate 32bit PCI peripherals and provide further fanout for downstream devices.
The AS90L10208 can simultaneously work as an HT tunnel device, transferring the data between the two HT ports, or as a bridge device transferring the data between either of the HT ports and the PCI/PCI-X bus.
The AS90L10208 can be configured to support dual-hosted chains where a host CPU can be connected to each HT port, enabling them to directly exchange data and to share common system resources across the PCI/PCI-X bus, thus reducing the latency of the data transfer and increasing the system performance.
It also maintains full software backward compatibility with Alliance's first HT-to-PCI bridge, the SP1011, thus reducing development cycle time and leveraging existing software built around the SP1011.
Up to 31 AS90L10208 devices can be daisychained to build higher capacity systems with multiple PCI/PCI-X buses and HT-based peripherals.
A fairness algorithm allocates bandwidth among the devices, thereby eliminating any bandwidth starvation of bridges at the end of the chain.
The AS90L10208 is currently sampling and production will begin in 3Q 2004.
• Alliance Semiconductor Corp: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
