The Mercury Computer Systems Themis USPIIi-1v/3 is a 6U VMEbus single board computer delivering 300 MHz UltraSPARC IIi processing power for high-performance embedded applications. It combines 1 GB of DRAM with three PMC expansion slots and integrated workstation-class I/O, enabling flexible configurations for telecommunications and ruggedized COTS deployments.
Technical Specifications
• Processor: 300 MHz UltraSPARC IIi (SPARC V.9 architecture)
• Memory: 1 GB DRAM; expandable from 64 MB to 1 GB via memory mezzanine cards
• Cache: 1024 KB L2 cache
• Performance: 18.7 SPECint95, 21.1 SPECfp95
• Form Factor: 6U VMEbus
• Expansion: Three PMC slots
• VME Interface: VME64
• SCSI: Dual Ultra Wide SCSI ports
• Ethernet: One 10/100Base-T Ethernet or MII port
• Serial: Two RS-232 serial ports; multiprotocol and expanded I/O options available
• Optional I/O: IEEE 1284 parallel port, C & D ports, audio port; UPA64S graphics slot support on select variants
– Key Features
• Workstation-class I/O integrated directly on the board
• High configuration flexibility through three dedicated PMC slots
• Low-cost, high-performance architecture suitable for space-constrained systems
• Dual Ultra Wide SCSI connectivity for storage integration
• Native support for both parallel and serial I/O expansion
– Typical Applications
• Telecommunications infrastructure
• Ruggedized COTS computing platforms
• Real-time embedded signal processing
• Mission-critical data acquisition and control systems
– Compatibility & Integration
• Operating Systems: SunSoft Solaris (2.5.1, 2.6, 2.7, 2.x, 8, 9) and Wind River Systems VxWorks 5.3
• Application Binaries: Runs unmodified sun4u application binaries; boots unmodified sun4u Solaris kernels from CDROM
• Architecture: Full SPARC V.9 instruction set support
