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— I 2 C and SPI are the most commonly used serial protocols for both inter-chip and intra-chip low/medium bandwidth data-transfers. This paper contrasts and compares physical implementation aspects of the two protocols through a number of recent Xilinx's FPGA families, showing up which protocol features are responsible of substantial area overhead. This… (More)

In embedded control applications, control-rate and energy-consumption are two critical design issues. This paper presents a series of high-speed and low-power finite-word-length PID controllers based on a new recursive multiplication algorithm. Compared to published results into the same conditions, savings of 431% and 20% are respectively obtained in terms… (More)

paper addresses the problem of multiplication with large operand sizes (N≥32). We propose a new recursive recoding algorithm that shortens the critical path of the multiplier and reduces the hardware complexity of partial-product-generators as well. The new recoding algorithm provides an optimal space/time partitioning of the multiplier architecture for any… (More)

In this paper, a new pure-digital frequency synthesizer F out =(X/Y) • F in for square-waves with controlled precision is described. Given that F in is the input reference frequency provided by a stable crystal oscillator, F out is the synthesized frequency; X and Y are two co-prime integer numbers. The purpose is to demonstrate that with exclusively simple… (More)

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