00000cab a22000003a 4500 UP-99796217609611631 Buklod 20231007234428.0 m |o d | ta 110113s xx d | ||r ||||| || DENGII eng Worm, F. A robust self-calibrating transmission scheme for on-chip networks. pp. 126-139 Systems-on-Chip (SoC) design involves several challenges, stemming from the extreme miniaturization of the physical features and from the large number of devices and wires on a chip. Since most SoCs are used within embedded systems, specific concerns are increasingly related to correct, reliable, and robust operation. We believe that in the future most SoCs will be assembled by using large-scale macro-cells and interconnected by means of on-chip networks. We examine some physical properties of on-chip interconnect busses, with the goal of achieving fast, reliable, and low-energy communication. These objectives are reached by dynamically scaling down the voltage swing, while ensuring data integrity-in spite of the decreased signal to noise ratio-by means of encoding and retransmission schemes. In particular, we describe a closed-loop voltage swing controller that samples the error retransmission rate to determine the operational voltage swing. We present a control policy which achieves our goals with minimal complexity; such simplicity is demonstrated by implementing the policy in a synthesizable controller. Such a controller is an embodiment of a self-calibrating circuit that compensates for significant manufacturing parameter deviations and environmental variations. Experimental results show that energy savings amount up to 42%, while at the same time meeting performance requirements. SNR. SOC. VLSI. Closed loop voltage swing controller. Data integrity. Embedded systems. Encoding. Error retransmission rate. Large scale macrocells. Low energy communication. Manufacturing parameter deviations. On-chip interconnect busses. On-chip networks. Physical properties. Reliable operation. Retransmission schemes. Robust operation. Robust self calibrating transmission scheme. Self calibrating circuit. Signal-noise ratio. Systems-on-chip design. IEEE Transactions on VLSI systems 13, 1 (2005). FO UPD DENG-II Article