Low Energy Digital Electronics for Multimedia Ubiquitous Environments

摘要

Internet owes its outstanding expansion in recent years to the development of handheld multimedia devices. The performable features and security of these devices have mainly relied on software supports. However, this obviously contradicts power conscious design. The hardware system of a single VLSI processor is indispensable to fulfill demands for the power conscious high speed cryptography of large quantity of multimedia data. Setting up the drastic throughput of 1GIPS (10~9 instructions/sec) and 1-W power dissipation, we have exploited the architecture of a hardware security-embedded multimedia mobile processor named Hsgorilla by sophisticatedly unifying up-to-date processor techniques. This paper focuses on Hsgorilla's aspects, application, and design approach for one of processor cores, HSgorilla035, by using 0.35-μm CMOS standard cell technology. Current specifications so far achieved fill our expectations to some extent, yet they are not always sufficient for the target specifications. Actually, further enhancement of throughput is required. We will be able to afford to do this, considering the power consumption is still less than 1W.