The Abaco Systems / VMIC VMIVME-7751-760140 is a Pentium III VME Single Board Computer engineered for industrial control, data acquisition, and embedded computing applications requiring high performance within the VME form factor. The board delivers Intel Pentium III processing up to 1.26 GHz with superscalar architecture, dual independent bus architecture, and integrated graphics, making it suitable for demanding real-time systems.
– Technical Specifications
Processor
• Intel Pentium III processor, up to 1.26 GHz
• Superscalar architecture: up to 3 instructions per clock cycle
• Dynamic branch prediction, separate instruction and data caches, MMX™ technology
• Advanced transfer cache (on-die, full-speed L2): 256 Kbyte (≤1 GHz), 512 Kbyte (1.26 GHz)
• Dual independent bus architecture
Memory
• Single 144-pin PC133 SDRAM SODIMM slot
• Maximum capacity: 512 Mbyte
• Dual-ported to VMEbus
Graphics
• Intel 815E chipset AGP graphics adapter
• 4 Mbyte external synchronous DRAM cache, 64-bit data interface
• Maximum resolution: 1,600 × 1,200 × 256 colors (single view)
Storage
• CompactFlash: up to 512 Mbyte or 1 Gbyte, bootable
• Optional IDE: 5 Gbyte (1.8″), 20 Gbyte (2.5″), or 30 Gbyte (2.5″) hard disk drives
• 20 GB and 30 GB drives occupy one PMC site
VMEbus Interface (Rev. C.1)
• Master: BLT32/BLT64, A32/D32, A24/D32, A16/D32
• Slave: BLT32/BLT64, A32/D32, A24/D32, A16/D32
• Programmable requestor (BR 3:0, ROR, RWD, BCAP)
• Interrupt handler: IH(1:7), D8(O)
• Interrupter: IRQ7* to IRQ1* (programmable)
• Arbiter: SGL, PRI, RRS
• Programmable bus timeout: 4 to 1,024 µs
Network & Expansion
• Dual Ethernet controllers: 10BaseT and 100BaseTX
• Optional PCI Dual-Channel Ultra160 SCSI
• PMC expansion site: 32-bit PCI, 33 MHz, 5 V signaling (types 1 and 2)
– Key Features
• Pentium III processing delivers substantial computational throughput for embedded control systems
• Integrated graphics eliminate need for discrete video subsystem
• Flexible storage options: Flash for reliability, IDE for capacity
• VMEbus compliance (Rev. C.1) ensures compatibility with legacy and modern VME backplanes
• Dual Ethernet for networked applications and redundancy
• PMC slot supports SCSI and future I/O expansion
– Typical Applications
• Real-time industrial control and automation
• Data acquisition and signal processing
• VME system controllers and masters
• Embedded computing platforms requiring Pentium-class performance
– Compatibility & Integration
The board integrates into standard VME systems via Rev. C.1-compliant backplane interfaces. Optional IDE hard drives use PMC real estate; verify backplane configuration before selecting 20 GB or 30 GB storage. Dual Ethernet and optional SCSI enable network and mass-storage connectivity without external adapters.
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