The XVME-655 is a single-slot VMEbus processor module built around the Intel Pentium architecture, delivering industrial-grade computing performance for real-time control, data acquisition, and embedded system applications. This 6U form-factor board combines full VMEbus master/slave capability with 512 MB of SDRAM, on-board storage options, and comprehensive I/O including dual serial ports, Ethernet, USB 2.0, and IDE interfaces.
Technical Specifications
Processor & Memory
• Intel Pentium Processor Family
• SDRAM: up to 512 MB (32-bit non-parity) via DIMM modules
VMEbus Interface
• VMEbus Rev. C.1 compliant
• Full master/slave arbitration and DMA transfer support
• 16, 32, and 64-bit data transfer modes
• Interrupt generator and listener capabilities
Serial & Parallel I/O
• Two RS-232C/422/485 ports (jumper-configurable)
• One RS-232C/485 port (jumper-configurable)
• One IEEE 1284 Centronics-compatible parallel port
• Two USB 2.0 host ports
• One PS/2 keyboard port and one PS/2 mouse port
Storage & Network
• On-board flash memory with bootloader/OS support
• Integrated IDE (ATA) controller for drives and SSDs
• Integrated floppy disk controller
• One 10/100Base-T Ethernet port
System Management
• Phoenix BIOS (flash upgradeable)
• On-board real-time clock with battery backup
• Watchdog timer for system monitoring and recovery
– Key Features
• Single VMEbus slot (6U) deployment
• Standard VMEbus edge connector with rear transition module (RTM)
• Industrial temperature operating range
• Optional conformal coating
• DB9, DB25, RJ45, USB Type A, and PS/2 connectors
– Typical Applications
• Real-time control systems
• Complex data acquisition platforms
• Communication infrastructure
• Harsh environment industrial computing
– Compatibility & Integration
Full VMEbus Rev. C.1 compliance enables seamless integration into existing 6U systems. Supports standard IDE hard drives, SSDs, and legacy peripherals via serial and parallel interfaces. Mixed-voltage serial port configuration (RS-232/422/485) accommodates diverse field equipment.


















