The Kontron/Thales/Cetia VMPC6a-450-128 is a PowerPC VME64 single board computer engineered for industrial, defense, military, and aerospace applications requiring high reliability in harsh environments. Built around the PowerPC 750 processor running at 450 MHz, this board delivers 820 MIPS and achieves over 21 SPECint95 and 13 SPECfp95 per processor, supported by 1 MB of backside L2 cache with a dedicated 1:2 clock ratio bus.
## Technical Specifications
• **Processor:** PowerPC 750 at 450 MHz
• **Performance:** 820 MIPS @ 400 MHz; >21 SPECint95; >13 SPECfp95
• **Memory:** 128 MB on-board double-bank SDRAM with ECC (64, 256, 512 MB options available)
• **Cache:** 1 MB backside L2 cache per processor with dedicated high-speed transfer bus
• **Flash Memory:** 512 KB system flash + 1 MB system flash + up to 32 MB user flash
• **NVRAM:** 8 KB for board parameters
• **Real-Time Clock:** Battery-backed (standard on SA class; optional on RA/RC)
• **VMEbus:** VME64 Extensions ANSI/VITA 1.1–1997 compliant; Master support for A16, A24, A32 addressing and D08(EO), D16, D16:UAT, D32, D32:BLT, D32:UAT, D64MBLT transfers; Slave A16 support
• **PCI Interfaces:** Internal 32-bit PCI (Rev. 2.0); External 64-bit PCI (Rev. 2.0) at 33 or 66 MHz; 5V or 3.3V signaling (fixed at manufacturing)
• **Ethernet:** 10/100 Mb/s LAN controller (10BASE-T/100BASE-TX)
• **Serial Ports:** Two RS-232 at 115.2 Kb/s or two simplified serial channels
• **SCSI:** SCSI-3 interface
• **PMC Site:** One IEEE standard PCI Mezzanine Card slot
• **Temperature Operating:** 0° to +55°C ambient air; Storage: -45° to +85°C
• **Cooling:** Linear airflow ≥1.2 m/s recommended; conduction cooled variants available to 85°C
• **Processor Bus:** Supports dual processor configuration at 100 or 133 MHz
## Key Features
• Single VME slot form factor
• Four ruggedization levels: standard, extended, air convection cooled, conduction cooled
• ALMA64 VME/PCI bridge with semaphore registers
• MIL STD 810 environmental compliance
## Typical Applications
Industrial control systems, defense subsystems, military electronics, aerospace instrumentation, and real-time embedded systems requiring VMEbus integration and PCI expansion.
## Compatibility & Integration
Full compatibility with IEEE standard PCI Mezzanine Cards. Dual processor configuration support enables symmetric multiprocessing designs.
