The XVME-654 is a VMEbus processor module that combines PC/AT compatibility with industrial-grade VMEbus architecture for real-time control, data acquisition, and embedded computing tasks. Built around an AM5x86 processor, this module delivers deterministic performance in demanding environments where standard computing platforms cannot operate reliably.
Technical Specifications
• Processor: AM5x86 running at 133 MHz with 33 MHz external bus
• Cache: 16 KB unified write-back cache
• Memory: Supports 4 MB, 8 MB, 16 MB, and 32 MB EDO DRAM configurations
• Graphics: PCI Local Bus SVGA controller, up to 1024 × 768 resolution
• Storage Interface: Integrated PCI Enhanced IDE controller
– Key Features
• Full DMA capability to and from the VMEbus enables high-throughput data transfers without CPU intervention.
• Integral FIFOs for posted writes optimize write performance and reduce bus contention.
• Block mode transfers and read-modify-write operations support complex data manipulation protocols.
• Four independent master and four slave images allow flexible mapping of VMEbus resources into local memory space.
• PCI local bus architecture bridges the processor to VMEbus with deterministic latency characteristics.
– Typical Applications
The XVME-654 serves industrial process control systems, military/aerospace data acquisition platforms, telecommunications switching equipment, and legacy VMEbus system upgrades where PC/AT software compatibility accelerates deployment.
– Compatibility & Integration
Compliant with VMEbus standards, the module integrates directly into existing VMEbus backplane systems. PC/AT software compatibility enables use of established embedded applications without porting overhead. The integrated SVGA and IDE controllers eliminate the need for separate graphics and storage interface modules in many configurations.
