Optically-Clocked Instruction Set Extensions for High Efficiency Embedded Processors
We propose a technique to localize computation in Instruction Set Extensions (ISEs) that are clocked at very high speed with respect to the processor. In order to save power, data to and from Custom Instruction Units (CIUs) is synchronized via an optical signal that is detected through a Single-Photon Avalanche Diode (SPAD) capable of timing uncertainties as low as 50 ps.
Keywords: Clock distribution ; embedded systems ; globally asynchronous locally synchronous (GALS) ; instruction set extensions (ISEs) ; optical clocking ; optically clocked ISEs ; single-photon avalanche diode (SPADs) ; Distribution Networks ; Pausible Clocking ; Ring Oscillator ; Digital Cmos ; Systems ; Design ; Noise ; Circuits
Record created on 2012-03-29, modified on 2016-08-09