Advanced Computer Architectures
Advanced Computer Architectures
AMULET2e: An Asynchronous Embedded Controller
ASYNC '97 Proceedings of the 3rd International Symposium on Advanced Research in Asynchronous Circuits and Systems
The Lutonium: A Sub-Nanojoule Asynchronous 8051 Microcontroller
ASYNC '03 Proceedings of the 9th International Symposium on Asynchronous Circuits and Systems
Adaptive Pipeline Structures fo Speculation Control
ASYNC '03 Proceedings of the 9th International Symposium on Asynchronous Circuits and Systems
AMULET3: A 100 MIPS Asynchronous Embedded Processor
ICCD '00 Proceedings of the 2000 IEEE International Conference on Computer Design: VLSI in Computers & Processors
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This paper presented an asynchronous ARM processor employing adaptive pipeline and enhanced control schemes. This adaptive pipeline employed stage-skipping and stage-combining. The stage-skipping removed the redundant stage operations, bubbles. The stage-combining was used to unify the neighboring stage when the next stage is idle. Each stage of our implementation had several different datapaths according to the kind of instruction. The instructions in the same pipeline stage could be executed in parallel when they need different datapaths. The outputs obtained from the different datapaths were merged before the WB stage, by the asynchronous reorder buffer.We designed an ARM processor using a 0.35-µm CMOS standard cell library. In the simulation results, the processor showed approximately 2.8 times speed improvement than its asynchronous counterpart, AMULET3.