The Abaco Systems / Ramix PMC671TX is a single-port Gigabit Ethernet interface module in PMC form factor, delivering full-duplex 1000 Mbit/s connectivity with auto-negotiation across 10/100/1000Base-T speeds. The module integrates a DMA engine with 64 KByte deep FIFO buffers to sustain full-bandwidth operation while minimizing PCI overhead. Automatic MDI/MDIX detection eliminates cable-type concerns, supporting both straight and crossover configurations. Two PMC671TX cards can be directly cabled for dedicated point-to-point 1000 Mbit/s full-duplex data paths, making the module ideal for deterministic, real-time interconnects in high-performance embedded systems.
Technical Specifications
• Form Factor: Single-slot PMC
• Ethernet Speed: 10/100/1000Base-T with auto-negotiation
• Duplex Mode: Full duplex
• PCI Interface: 64-bit/66 MHz, 3.3 V and 5 V signaling
• FIFO Buffer: 64 KByte
• Connector: Front I/O RJ45
• Operating Temperature: 0 to +60 °C
• Operating Humidity: 5% to 95% non-condensing
– Key Features
• Hardware DMA engine with deep buffering for zero-copy operation
• Automatic MDI/MDIX crossover detection and correction
• Hardware TCP checksum offloading reduces host CPU load
• Packet filtering by checksum error detection
• 4096-bit hash filter for multicast frame selection
• Exact-match unicast and multicast address filtering
• Promiscuous unicast and multicast transfer modes
• SNMP and RMON statistical counter support
• Jumbo frame capable
– Typical Applications
• Low-latency, real-time data acquisition and processing
• Dedicated point-to-point gigabit interconnects between embedded systems
• High-bandwidth PMC-based platforms requiring minimal PCI contention
– Compatibility & Integration
The PMC671TX integrates into standard PCI Mezzanine Card slot systems. For card-edge PCI systems, Abaco Systems offers the PMC239 adapter to enable rapid prototyping and development. Driver support aligns with standard host OS LAN protocol stacks.
