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In this article, novel FIFO and RAM-based Synchronization Modules to keep synchronism throughout the input channels of a Data Acquisition Electronics (DAE) system are proposed. DAE is a main component of a Medical Imaging System, namely, a Positron Emission Mammography (PEM) system. DAE input data comes from a scanner constituted by an array of scintillating crystals. The scanner captures radiation...
The purpose of this paper is to present a novel built-in Clock Domain Crossing (CDC) test and diagnosis methodology for Globally Asynchronous, Locally Synchronous (GALS) systems. The methodology allows design and prototype validation, low maintenance and repair costs, and production / lifetime at-speed test. Moreover, high resolution diagnosis is obtained, to identify which device(s) and/or communication...
Globally Asynchronous, Locally Synchronous (GALS) systems are widely used in medical applications. Typically, they exhibit high number of node-to-node communication channels that must transmit high data volume at high data rates and maintain data time coherence. The purpose of this paper is to present two structures for restoring data coherence in node-to-node communication, which may be lost due...
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