The Motorola DSP 96002 IEEE floating-point digital signal processor

A description is given of a dual-bus, user-programmable, CMOS digital signal processor that implements the IEEE 754-1985 standard for binary floating-point arithmetic. Peak performance is 13.5 MIPS and 40.5 MFLOPS with a 27 MHz clock. Designed for symmetric multiprocessing, the dual buses are programmable and functionally identical. CPU data, interrupts, and DMA blocks can be directly communicated between 96002s, without using any external memory. Circuitry on each external port identifies the fast access modes of dynamic memories, giving near-static RAM performance with low-cost DRAM/VRAM devices. The 96002 is based on a superset of Motorola'' DSP56000/1 fixed-point DSP architecture and is software-compatible with DSP56000/1 source code