Abaco Systems / VMIC VMIVME-7750-740M01 Pentium III Processor-Based VME Single Board Computer

The Abaco Systems / VMIC VMIVME-7750-740M01 is a single-slot Eurocard VME single board computer built on the Intel Pentium III processor. It functions as a system controller or peripheral CPU in multi-CPU VMEbus configurations, offering transparent PCI-to-VME bridging for demanding industrial and embedded applications requiring VMEbus connectivity and reliable computing performance.

Technical Specifications

• Intel Pentium III processor operating at speeds up to 1.26 GHz


• 32-bit addressing with 64-bit data bus


• Superscalar architecture executing three instructions per clock cycle


• Dynamic branch prediction, separate instruction and data caches, MMX technology


• Advanced Transfer Cache (on-die Level 2): 256 Kbyte (≤1 GHz) or 512 Kbyte (1.26 GHz)


• L2 cache frequency matches processor clock


• Dual independent bus architecture System Chipset & Memory


• Intel 815E chipset with 133 MHz system bus


• Up to 512 Mbyte PC133 SDRAM via single 144-pin SODIMM


• Dual-ported DRAM accessible by local processor and VMEbus slave interface Graphics


• AGP SVGA controller with 4 Mbyte external synchronous DRAM cache


• 64-bit high-bandwidth data interface


• Resolution support to 1,600 x 1,200 x 256 colors (single view mode) Storage & BIOS


• System and video BIOS in reprogrammable flash memory


• IDE interface via Intel ICH2 controller supporting two channels


• CompactFlash memory support up to 1 Gbyte via secondary IDE port


• Boot option from flash memory VMEbus Interface


• VME Specification Rev. C.1 compliant


• Tundra Universe IIB PCI-to-VME bridge


• Master/Slave: BLT32/BLT64, A32/D32, A24/D32, A16/D32


• Programmable requester (BR3–BR0, ROR, RWD, BCAP)


• Interrupt handler: IH1–IH7, D8(O); Interrupter: IRQ7–IRQ1


• Arbiter modes: SGL, PRI, RRS


• Programmable bus timeout: 4–1,024 µs


• Arbitration timeout: 16 or 256 µs selectable


• System controller with SYSCLK driver, IACK daisy chain, and VMEbus timeout timer

Key Features

• Single-slot form factor for space-constrained deployments


• Transparent PCI-to-VME bridge enables flexible system architectures


• High-speed processor paired with high-bandwidth memory interface


• Integrated IDE support with CompactFlash flexibility


• Selectable system controller or peripheral CPU operation

Typical Applications

• Industrial process control and monitoring systems


• Military and aerospace embedded computing


• Real-time data acquisition and signal processing


• Multi-CPU VME crate configurations

Compatibility & Integration The VMIVME-7750-740M01 integrates into VMEbus systems Rev. C.1 compliant, supporting both master and slave operations. The Tundra Universe IIB bridge ensures predictable latency and high throughput for mixed PCI and VME peripheral environments.