The Abaco Systems / Radstone PPC-604 is a 6U VME single-board computer built around the PowerPC 604 RISC processor. Engineered for high-performance embedded systems, it delivers superscalar instruction execution with six parallel execution units and integrates 64-bit VMEbus connectivity via the Tundra Universe II chipset. The board supports up to 128 MB user memory, 4 MB flash storage, and multiple I/O interfaces including Ethernet, serial ports, SCSI-2, and audio channels.
– Technical Specifications
• Processor: PowerPC 604 at 66 MHz or 100 MHz
• Memory: Up to 128 MB user memory; 4 MB user flash
• VMEbus: 64-bit interface, VME64 and VME64 extensions compliant (5-row P1/P2 connectors)
• I/O Interfaces:
– Ethernet: 10BaseT/100BaseTX
– Serial: Two RS-232 channels (front panel) plus on-board serial ports
– Parallel ports
– SCSI-2 peripheral interface
– 16-bit business audio
– JTAG port
• Supply Voltage: 3.3 V ± 5% DC
• Operating Temperature: 0 to 105 °C junction temperature
• Power Dissipation: 100 MHz—14.5 W typical, 19.0 W maximum; 120 MHz—17.0 W typical, 22.5 W maximum; 133 MHz—18.5 W typical, 24.0 W maximum
– Key Features
• Superscalar architecture executing up to six instructions in parallel
• Six execution units: floating-point unit (FPU), branch processing unit (BPU), and load/store unit (LSU)
• Separate 16 kB instruction and data caches
• Demand-paged virtual memory with MMU and TLB
• On-chip cache coherency snooping for multiprocessor support
• Configurable cooling: air-cooled or conduction-cooled options
• Available build styles from Level 1 (Standard) to Level 5 (Rugged)
– Compatibility & Integration
Fully compliant with PowerPC Reference Platform (PReP) recommendations. Supports multiple VMEbus masters through external arbitration protocol. Input capacitance: 10 pF maximum.
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