IDT is the market leader in VME Interconnect technology with more than ten years experience in providing VME solutions and technical support to the embedded systems industry. The VME System Interconnect products, such as the Universe™ II, dominate the VME market and enhance the performance of traditional VME-based applications for military communications, industrial automation, and medical imaging.

PCI-to-VME bridge:

The Universe™ IID (also known as Universe II) is the industry standard PCI-to-VME bridge. Bridging is accomplished via a powerful decoupled architecture with independent FIFOs for inbound, outbound, and DMA traffic. With this architecture, throughput is maximized without sacrificing bandwidth on either bus. Universe bridges between the VME 64-bit bus to either a 32- or 64-bit PCI bus at 33 MHz.

A zero-wait state implementation, with multi-beat transactions and support for bus parking, ensure that the Universe II is never the bottleneck on the PCI bus. On the VME interface, a rich set of features ensures that the device fits within a wide range of applications. A full suite of addressing and data modes is implemented, including BLT and MBLT support. In addition, a fully featured system controller, interrupter, interrupt handler, and Linked-List DMA make the Universe II a flexible System Interconnect device.

The Universe II is known for its standards compliance, compatibility, reliability, large

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PCI/X to VME Bridge:

The IDT Tsi148™ is the highest bandwidth VME bridge available, providing PCI-X-to-VME 2eSST performance levels while maintaining backward compatibility with older standards.

As the VME chassis continues to evolve, Tsi148 provides the bandwidth required to connect together distributed computing elements. VME systems are using distributed processing elements like CPUs, NPUs, and DSPs in order to manage the thermal density and provide scalability. New standards like VXS and VPX are using RapidIO® interconnect as the data path but in parallel VME bus traffic will also increase because control plane bandwidth scales with data bandwidth.

The Tsi148’s decoupled architecture and proper buffer sizing allows a very large number of simultaneous transactions to take place. The device is also a full featured master/slave and system controller, which allows it to be used in any VME application. Its low power and small package size make it an ideal choice where space and power are concerns.

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