The Curtiss-Wright VPX6-185-A01A6 is a 6U VPX single board computer engineered for demanding embedded computing and signal processing in harsh environments. Built on the Freescale Power Architecture MPC8640/1 processor, it delivers dual-core e600 performance at 21.3 GFLOPs @1.33 GHz with integrated AltiVec acceleration. The platform combines high-speed fabric connectivity—sRIO up to 3.125 Gbps and PCIe at 2.5 Gbps—with extensive I/O and 8.6 GB/s memory bandwidth to support tactical avionics, armored vehicle computing, and naval systems requiring resilience in extreme conditions.
## Technical Specifications
**Processor**
• Freescale Power Architecture MPC8640/1 with single or dual-core e600 options
• 64 KB L1 cache per core; 1 MB L2 cache with ECC per core
• 21.3 GFLOPs @1.33 GHz dual-core performance
**Memory**
• Up to 2 GB DDR2 SDRAM with ECC (single-bit error correction, multi-bit error detection)
• Dual-channel DDR2 memory controllers operating up to 500 MHz, 8.6 GB/s peak bandwidth
• 256 MB or 512 MB Flash memory with write protection
• 128 KB AutoStore NVSRAM with hardware write protection
**VPX Fabric**
• VITA 46 core fabric with Serial Rapid I/O (sRIO) and PCIe
• Up to four sRIO interfaces at 3.125 Gbps
• Up to two PCIe interfaces at 2.5 Gbps
**I/O Interfaces**
• Four 10/100/1000Base-TX Gigabit Ethernet ports (one air-cooled front panel or backplane option; three routed to backplane P4)
• Four asynchronous EIA-232 serial ports; four synchronous/asynchronous EIA-232/422/485 channels with HDLC/SDLC
• Up to 14 VTTL discrete I/O; up to 16 EIA-422/485 differential signals (8 inputs, 8 outputs)
• Two USB 2.0 ports; two I2C channels
• Six general-purpose 32-bit timers; four DMA controllers; eight 31-bit OS timers; two avionics-style watchdog timers
**Mezzanine Expansion**
• Two XMC/PMC mezzanine sites: one supporting 100 MHz PCI-X PMC or 8-lane PCIe XMC; one supporting 66 MHz PCI-X PMC or 4-lane PCIe XMC
## Key Features
• Dual-core processor with cache ECC and memory error correction
• Configurable sRIO and PCIe fabric for processor-to-processor communication
• Multiple serial, discrete, and Ethernet I/O options
• Hardware watchdog and timer redundancy for mission-critical applications
## Typical Applications
• Tactical aircraft computing platforms
• Armored vehicle embedded systems
• Naval systems requiring harsh-environment resilience
• Real-time data and digital signal processing
## Compatibility & Integration
Supports VITA 46 VPX backplanes. Accommodates both PMC and XMC mezzanine modules at specified clock rates.
