The XVME-661 is a 6U VMEbus processor module built around an Intel Pentium III low-power processor operating at 700 MHz with a 100 MHz frontside bus and 256 KB L2 cache. Designed for industrial embedded computing, real-time control, and data acquisition in demanding environments, this module combines CPU performance with integrated graphics, dual Ethernet controllers, and flexible I/O expansion via a single PMC site.
Technical Specifications
Processor
• Intel Pentium III low-power processor
• CPU Speed: 700 MHz
• Frontside Bus: 100 MHz
• L2 Cache: 256 KB on-chip
Memory
• SDRAM: Up to 256 MB
• Configuration: One 144-pin SODIMM
Graphics Controller
• 64-bit AGP graphics controller with 4 MB SDRAM
• Maximum resolution: 1600×1200 at 64K colors or 1280×1024 at 16 million colors
• Video output: 15-pin D shell front panel connector
VMEbus Interface
• Tundra Universe IID PCI-to-VMEbus bridge
• IEEE 1014 compliant
• Multiple VME master and slave images with block transfer and DMA capability
• Programmable hardware byte-swapping
Storage
• IDE CompactFlash Type I/II site
• Optional hard drive/floppy via XVME-977 or hard drive/CD via XVME-979
Networking
• Dual Intel 82559ER 10 Base-T/100 Base-TX Ethernet controllers
• 32-bit PCI bus mastering, up to 100 Mbps per port
• Autosensed transfer rate with front panel LED indication
I/O Expansion
• One 32-bit PMC site with electrical isolation
• Serial, parallel, USB, and keyboard/mouse ports via optional XVME-974 breakout module
• PCI EIDE support
– Key Features
• Low-power Pentium III processor minimizes thermal load in VME backplane applications
• Tundra bridge architecture enables high-performance block data transfers
• Integrated dual Ethernet for network-centric embedded systems
• Flexible PMC expansion without requiring external carrier boards
• Optional I/O carrier modules extend functionality to USB, serial, parallel, and storage interfaces
– Typical Applications
• Real-time industrial control systems
• VMEbus-based data acquisition platforms
• Embedded computing in harsh field environments
• Network-connected instrumentation and monitoring
– Compatibility & Integration
The XVME-661 integrates with standard VMEbus backplanes and supports optional expansion modules including the XVME-976 I/O carrier (PMC, PC/104, PCI, short ISA compatibility), XVME-977 storage module, and XVME-979 CD drive module.
