The Curtiss-Wright/DY-4 SVME-181 is a VMEbus Single Board Computer built around the PowerPC 7410 processor for military, aerospace, and industrial applications demanding high reliability in harsh environments. The board delivers 32-bit computing with integrated AltiVec technology for accelerated multimedia and signal processing, supported by dual Ethernet ports, six serial channels, USB connectivity, and 16 bits of programmable digital I/O. With up to 1 GB of ECC SDRAM, 128 Mbytes of Flash memory, and a 2 MB L2 cache, the SVME-181 combines substantial on-board storage with flexible I/O architecture for complex mission-critical systems.
## Technical Specifications
**Processor**
• PowerPC 7410 CPU with AltiVec technology
• Clock speed: Up to 500 MHz
• 32-bit architecture with superscalar execution (two instructions per cycle)
• Execution units: floating-point unit, branch processing unit, system register unit, load/store unit, and two integer units
• L1 caches: 32 Kbyte eight-way set-associative (separate instruction and data)
• L2 cache: 2 MB
**Memory**
• SDRAM: 512 MB or 1 GB with ECC, running at 100 MHz
• Flash memory: Up to 128 Mbytes
**System Interface**
• System bus frequency: 100 MHz
• Dual 10/100Base-T Ethernet ports
• Six serial channels
• Two USB ports (one front-panel, one P0 connector)
• 16 bits of LVTTL-compatible discrete digital I/O, individually programmable as input or output with interrupt-on-change capability
• VMEbus interface via Universe II PCI-to-VME bridge
## Key Features
• Standard VMEbus form factor (0.8″ slot)
• AltiVec acceleration for signal and multimedia processing
• ECC-protected memory for mission-critical environments
• Configurable ruggedization levels including air and conduction-cooled options
• Conformal coating available for enhanced environmental protection
## Typical Applications
• Military and defense command systems
• Aerospace avionics and embedded processing
• Industrial control in harsh operating conditions
## Compatibility & Integration
• TTL-compatible I/O levels
• PCI bus architecture for VMEbus integration
• VMEbus memory accessibility via Universe II interface
