نتایج جستجو برای: clocking zones
تعداد نتایج: 46802 فیلتر نتایج به سال:
A major problem with low-level functional verii-cation of any hierarchical system is the explosion of reachable states created when clocking mechanisms are incorporated into the model. These additional states make veriication more diicult, usually to the point that veriication at such a low level is not feasible. Transforms have been developed to take a nonhierarchi-cal model with a complex clo...
In this paper we apply a recently formulated general timing model of synchronous operation to the special case of latch-controlled pipelined circuits. The model accounts for multiphase synchronous clocking, correctly captures the behavior of level-sensitive latches, handles both shortand longpath delays, accommodates wave pipelining, and leads to a comprehensive set of timing constraints. Pipel...
Quantum-dot cellular automata ~QCA! may provide a novel way to bypass the transistor paradigm to form ultrasmall computing elements. In the QCA paradigm information is represented in the charge configuration of a QCA cell, which maps naturally to a binary model. Molecular QCA implementations are being explored where the quantum dots in the cell take the form of redox centers in a molecule. Cloc...
Linear-accelerator-based sources will revolutionize ultrafast x-ray science due to their unprecedented brightness and short pulse duration. However, time-resolved studies at the resolution of the x-ray pulse duration are hampered by the inability to precisely synchronize an external laser to the accelerator. At the Sub-Picosecond Pulse Source at the Stanford Linear-Accelerator Center we solved ...
The family of stream ciphers MICKEY (which stands for Mutual Irregular Clocking KEYstream generator) is aimed at resource-constrained hardware platforms. It is intended to have low complexity in hardware, while providing a high level of security. It uses irregular clocking of shift registers, with some novel techniques to balance the need for guarantees on period and pseudorandomness against th...
The clock distribution network in digital integrated circuits distributes the clock signal which acts as a timing reference controlling data flow within the system. Since the clock signal has highest capacitance and operates at high frequencies, the clock distribution network consumes a large amount of total power in synchronous system. So, a new flip-flop is proposed in a low-swing resonant cl...
We examine power dissipation in different clocking schemes for molecular quantum-dot cellular automata (QCA) circuits. 'Landauer clocking' involves the adiabatic transition of a molecular cell from the null state to an active state carrying data. Cell layout creates devices which allow data in cells to interact and thereby perform useful computation. We perform direct solutions of the equation ...
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