The Curtiss-Wright/DY-4 SPMC-230-0001 is a PCI Mezzanine Card (PMC) that implements a Starlink Switched Fabric Data Interconnect based on StarFabric technology from Stargen Inc. It enables high-performance, deterministic communication across multiple processing nodes by presenting bridged PCI devices through non-transparent PCI to PCI bridges. The module delivers 400 MB/s sustained bandwidth with 800 MB/s switching cross-sectional bandwidth across a 64-bit, 66 MHz PCI interface.
## Technical Specifications
• **Interconnect Architecture**: StarFabric Switched Fabric Data Interconnect
• **Data Bandwidth**: 400 MB/s sustained total bandwidth
• **Switching Bandwidth**: 800 MB/s cross-sectional bandwidth
• **PCI Interface**: 64-bit, 66 MHz
• **StarFabric Ports**: 2 PCI-to-StarFabric bridge ports; 6-port StarFabric switch
• **Physical Layer**: LVDS
• **Thermal Options**: Air-cooled and conduction-cooled versions available
• **Software**: VxWorks drivers included
## Key Features
• Quality of Service (QoS) provisions for real-time determinism
• High availability support with redundant connections and automatic re-routing upon connection failure
• Memory visibility across nodes—memory attached to one processing node appears in PCI address space of other nodes
• Four StarFabric port configuration options: two front-panel RJ-45 ports, two via Pn4 backplane connectors
• Rear-panel transition module available for VME systems
• Low power operation
## System Architecture
• Scales from a few boards to many nodes without redesign
• Packet routing through up to seven switches for large node counts
• Supports point-to-point, mesh, and redundant topologies
• Non-transparent bridging presents remote memory as local PCI address space
## Typical Applications
• Signal processing systems requiring high-throughput inter-node communication
• Military and aerospace embedded systems
• Multi-node processing arrays with stringent data-sharing requirements
