Two Efficient Pipelined Designs for MIMO Asynchronous Control
نویسنده
چکیده
Two-phase micro-pipeline asynchronous modules show faster performance than common fourphase control systems, but the conventional systems with multi-port modules normally suffer from longer signal paths on stacked C-elements. NOR-based control schemes provide an alternative solution to problems such as propagation delay. This paper presents two modified designs from the common two-phase and alternative NOR based four-phase pipeline system. The HSPICE performs the evaluation based on TSMC 0.25um fast-mode CMOS model, and HSPICE simulation results show the two-phase pipelined system is still a reliable solution with a limited number of inputs even when the theoretically lower control overhead is disregarded. A power reduction of over 27% and a propagation improvement of more than 11% were achieved by replacing some decision circuits with modified C-elements. Key-Words: Interlocked Pipelined CMOS, two-phase pipeline, Symmetric C-element, Strobe, MIMO, Asynchronous
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