A Realtime Image Signal Processor (Version II) with Micro-Programmable and Expandable Architecture

A micro-programmable Realtime Image Signal Processor (RISP-version II) has been developed fabricated in the 1.5-¿m bipolar technology. The RISP-II, designed for use in the local image processing, has attained the per-chip processing speed as high as 100 MIPS. The multi-chip processing has been realized by added features: parallelism with the local image register, and pipelining with the pipeline register. Therefore, the execution speed can easily double or more when two or more RISP-IIs are adopted, and the local window can be enlarged simultaneously.