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The development of mobile multimedia devices follows the platform-based design methodology in which IP cores are the building blocks. In the context of mobile devices there is a concern of battery lifetime which leads to the need of energy-efficient IP cores. This paper presents an energy-efficient FDCT/IDCT configurable IP core. Synthesis for 90 nm(More)
Discrete gate sizing has attracted a lot of attention recently as the EDA industry faces the challenge of optimizing large standard cell-based circuits. The discreteness of the problem, along with complex timing models, stringent constraints and ever increasing circuit sizes make the problem very difficult to tackle. Lagrangian Relaxation is an effective(More)
Timing-driven placement (TDP) finds new legal locations for standard cells so as to minimize timing violations while preserving placement quality. Although violations may arise from unmet setup or hold constraints, most TDP approaches ignore the latter. Besides, most techniques focus on reducing the worst negative slack and let the improvements on total(More)
Discrete gate sizing has attracted a lot of attention recently as the EDA industry faces the challenge of optimizing large standard cell-based circuits. The discrete nature of the problem, along with complex timing models, stringent design constraints, and ever-increasing circuit sizes, make the problem very difficult to tackle. Lagrangian Relaxation (LR)(More)
1. INTRODUCTION In recent years, battery-powered portable devices, such as digital cameras, tablets and smartphones, have driven the consumer electronics market. The design of such devices must take into account both performance and power consumption requirements. Particularly, power consumption must be kept as low as possible in order to prolong battery(More)
Modern technologies provide wide and thick metal layers that must be wisely used to reduce the delay of critical interconnections. After global routing, incremental layer assignment can improve the circuit timing by properly selecting critical interconnect segments to be routed in the faster (but very limited) wires on upper layers. Existing techniques(More)
The increasing impact of interconnections on the overall circuit performance renders physical design a crucial step to timing closure. Several techniques are used to optimize timing within the flow, such as gate sizing, buffer insertion, and timing-driven placement (TDP). Unfortunately, gate sizing and buffer insertion are not capable of modifying the(More)
During physical synthesis, global placement and incremental optimization steps such as gate sizing, buffer insertion and timing-driven placement, produce placements where cells are overlapped or misaligned with respect to sites and rows predefined in the used standard cell library. Therefore, a legalization procedure must be used to keep the placement(More)
As VLSI technology scales to deep sub-micron, design for interconnections becomes increasingly challenging. The traditional bus routing follows a sequential bit-by-bit order, and few works explicitly target inter-bit regularity for signal groups via multilayer topology selection. To overcome these limitations, we present Streak, an efficient framework that(More)