Design of a 64-bit, 100 MIPS microprocessor core IC for hybrid CMOS-SEED technology

We describe the design of a hybrid CMOS-SEED 64-bit microprocessor core IC with 192 optical I/Os. This 3.5 mm² IC was fabricated and electrically tested at 100 MHz with a performance of 100 million 64-bit instructions per second (MIPS). The processor design includes a 64-bit arithmetic-logic unit (ALU) which implements 16 logic and 32 fixed-point arithmetic functions. A 1 cm² chip can integrate thirty two 64-bit processors and achieve 3,200 64-bit MIPS. Further performance improvements can be achieved using improved processor architecture and/or a more advanced CMOS process. When combined with an appropriate photonic page buffer IC operating as a cache memory, it becomes possible to build a compact, two-chip parallel processor system