The Tsi384™ is a high-performance forward bridge that connects the PCI Express (PCIe) protocol to the PCI and PCI-X bus standards. The Tsi384’s PCIe Interface supports 1, 2, or 4 lanes. This enables the bridge to offer exceptional throughput performance up to 1 GBps.

The device’s PCI/X Interface can operate up to 133 MHz in PCI-X mode, or up to 66 MHz in PCI mode. This interface offers designers extensive flexibility by supporting three types of addressing modes: transparent, opaque, and non-transparent.

High Performance

The Tsi384 incorporates deep buffering and a queuing architecture to minimize latency and maximize throughput. In addition to low-latency operation, the device supports a maximum payload size of up to 512 bytes to allow better throughput efficiency.

Low Power Consumption

The Tsi384 has typical power consumption of 1.3W, and incorporates power management to minimize power consumption during operation.

Transparent, Non-Transparent, and Opaque Bridging

Transparent mode operation is available for efficient, flow-through configurations, while non-transparent bridging allows isolation between the Tsi384’s PCIe and the PCI/X domains. Non-transparent bridging enables applications that use a processor on the secondary bus, such as intelligent storage adapters. Opaque mode provides semi-transparent operation for multi-processor configurations and enhanced private device support.

Industrial Temperature Standard and RoHs Compliant Package

The Tsi384 is available in a 17 x 17 mm BGA package rated for industrial temperature operation (-40°C to 85°C). Standard and RoHs compliant packages are available. The device package is footprint and pin-out compatible with the PLX PEX8114 enabling it to fit into the same board designs.

Business Benefits

High Performance

• Superior queuing and buffering architecture enhances system performance by delivering high throughput and low latency.

Low Power

• Minimizes system power by providing low average power consumption and comprehensive power management.

Support for Non-transparent Bridging

• Provides an errata-free solution for applications such as intelligent IO cards that need a processor on the secondary bus.

For a list of Tundra PCIe bridge equivalents to replace standard PCIe bridges from other manufacturers, please see PCI and PCIe Bridge Cross Reference located on the Resources tab.