The Curtiss-Wright/DY-4 SVME-179-100 is a single board computer engineered for military, aerospace, and industrial applications requiring reliable operation in harsh environments. Built on PowerPC architecture with conformal coating protection, this VME64-based SBC delivers 3.2 GFLOPS at 400 MHz while consuming only 17 W typical power.
## Technical Specifications
**Processor & Performance**
• PowerPC 750 or PowerPC 7400 (AltiVec-enhanced) CPU
• Clock speed: 400 MHz
• Computing capacity: 3.2 GFLOPS
• 1 MB (750) or 2 MB (7400) L2 cache with parity error detection
**Memory Architecture**
• SDRAM with ECC: 64, 128, or 256 MB options
• Direct-mapped Flash Memory: up to 48 MB (64-bit wide)
• AutoStore nvSRAM: 32 KB
• Serial EEPROM: 512 bytes
• 64-bit PCI bus: 264 MB/sec peak transfer rate
• L2 cache bus: 1.06 GBytes/sec at 133 MHz
**I/O & Connectivity**
• Two 64-bit, 33 MHz PMC (PCI Mezzanine Card) sites
• 10/100BaseTX Ethernet
• Ultra SCSI-2 (8 or 16-bit) with 20 MB/sec synchronous / 7 MB/sec asynchronous; Wide Ultra SCSI-3 optional
• Two EIA-232 serial ports
• Two EIA-422/485 serial channels with HDLC/SDLC capability; one DMA-capable
• Asynchronous baud rates to 153,600 bps; synchronous to 1.6 Mbps (85230 ESCC)
• 12-bit TTL discrete I/O with interrupt capability
**Timers & Control**
• One 32-bit and three 24-bit general-purpose timers
• Three 16-bit system timers
• Programmable watchdog timer
• Real-time clock with automatic +5 V/+5 V STDBY switchover
• Four PCI DMA controllers
**VME Interface**
• Tundra Universe II™ VME64 master/slave architecture
**Power Supply**
• Basecard: +5 V only
• Backplane: 3.3 V, 5 V, ±12 V (routed to PMC sites)
• Dissipation: 17 W typical (750 CPU)
## Key Features
• Fully 64-bit architecture for demanding applications
• Conformal coating for environmental protection
• Single 0.8-inch slot VME form factor
• Built-in Test (BIT) firmware with 95% fault coverage
• Low power envelope suitable for mobile platforms
## Compatibility & Integration
• VxWorks®/Tornado BSP and driver suite
• LynxOS™ reference port available
• Foundation firmware includes debug monitor, NV memory programmer, and card support routines
