The Mercury Computer Systems PowerPC 7447A RACE++ Daughter Card is a dual-processor compute module engineered for real-time embedded applications requiring high-speed data processing and I/O concurrency. Built around two MPC7447A microprocessors with AltiVec vector execution technology, this Type J daughtercard delivers superscalar RISC performance through the RACE++ switched-fabric interconnect, enabling simultaneous arithmetic operations, memory access, and network communication without data starvation bottlenecks.
Technical Specifications
• Processor: Dual MPC7447A microprocessors with AltiVec technology; 800 MHz (standard) or 667 MHz (extended L2 temperature) clock speeds
• Core Voltage: 1.1 V ± 50 mV DC (nominal); 1.0 V ± 50 mV DC (derated)
• L1 Cache: 32 KB instruction, 32 KB data per compute node
• L2 Cache: 512 KB per compute node
• Memory: DDR SDRAM with error checking and correction; integrated memory controller via CN interface chip
• RACE++ Bandwidth: 267 MB/s per connection; up to 1 GB/s peak aggregate (four simultaneous paths per crossbar)
• MPX Processor Bus: Available for memory access enhancements
• Form Factor: Standard Mercury Type J daughtercard
– Key Features
• Superscalar RISC architecture with parallel vector processing capabilities
• Compute Node (CN) interface chip enhances concurrency between arithmetic and I/O operations
• Enhanced DMA controller for optimized data transfer
• RACEway switch fabric designed to prevent performance degradation through multiple concurrent transactions
• RACE++ crossbar architecture supporting four simultaneous communication paths
– Typical Applications
Real-time data processing, signal processing, image processing, sensor acquisition, and display systems requiring deterministic latency and sustained I/O bandwidth.
– Compatibility & Integration
Compatible with Mercury MCH6, MCH9, MCJ6, and MCJ9 motherboards. Supports VME64 and RACEway interfaces via MCJ Series motherboards with VME backplanes equipped with single or dual-port RACE++ interlink modules.
