A distributed processing system design verification process

A novel distributed multiprocessor system is being developed for a specific government application which requires product development in under 14 months. The system development incorporates a 32-bit advanced modular processor (AMP) with extended local bus (ELB) capabilities and a dual redundant 21-bit VME backplane interface. The AMP is a 6×9 inch double-sided module which integrates the MIPS R3000/R3010 RISC (reduced-instruction-set computer) microprocessor chip set with three 55K gate VHSIC chip designs to achieve a performance capability of over 20 VAX MIPS. Multiple AMPs will be used in the system with additional growth capability of up to 10 AMP modules. An I/O processor and four I/O modules will be developed to provide VME bus extension capabilities and other interface functions. In parallel with the hardware development is an extensive Ada software development which includes a loosely coupled multiprocessor real-time operating system and associated diagnostics and support software. The design methodology for the AMP is presented, including system architecture, software development, and a comprehensive verification process which emphasizes the importance of integrating software and hardware prior to ASIC (application-specific integrated circuit) fabrication