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Portable, embedded systems place ever-increasing demands on high-performance, low-power microprocessor design. Dynamic voltage and frequency scaling (DVFS) is a well-known technique to reduce energy in digital systems, but the effectiveness of DVFS is hampered by slow voltage transitions that occur on the order of tens of microseconds. In addition, the(More)
Dynamic voltage and frequency scaling (DVFS) is a commonly-used power-management scheme that dynamically adjusts power and performance to the time-varying needs of running programs. Unfortunately, conventional DVFS, relying on off-chip regulators, faces limitations in terms of temporal granularity and high costs when considered for future multi-core(More)
Process variations will greatly impact the stability, leakage power consumption, and performance of future microprocessors. These variations are especially detrimental to 6T SRAM (6-transistor static memory) structures and will become critical with continued technology scaling. In this paper, we propose new on-chip memory architectures based on novel 3T1D(More)
Sensor devices ("motes") which integrate an embedded microprocessor, low-power radio and a limited amount of storage have the potential to significantly enhance the provision of emergency medical care. Wearable vital sign sensors can wirelessly monitor patient condition, alerting healthcare providers to changes in status while simultaneously delivering data(More)
  • John T Stonick, Gu-Yeon Wei, Jeff L Sonntag, Daniel K Weinlader
  • 2001
—This paper describes a backplane transceiver, which uses pulse amplitude modulated four-level (PAM-4) signaling and continuously adaptive transmit-based equalization to move 2.5-GBd/s symbols totalling 5 Gb/s across typical FR-4 backplanes for total distances of up to 50 inches through two sets of backplane connectors. The 17-mm 2 device is implemented in(More)
Hardware specialization, in the form of accelerators that provide custom datapath and control for specific algorithms and applications, promises impressive performance and energy advantages compared to traditional architectures. Current research in accelerator analysis relies on RTL-based synthesis flows to produce accurate timing, power, and area(More)
Recent years have seen a burgeoning interest in embedded wireless sensor networks with applications ranging from habitat monitoring to medical applications. Wireless sensor networks have several important attributes that require special attention to device design. These include the need for inexpensive, long-lasting, highly reliable devices coupled with(More)
Recent efforts to address microprocessor power dissipation through aggressive supply voltage scaling and power management require that designers be increasingly cognizant of power supply variations. These variations, primarily due to fast changes in supply current, can be attributed to architectural gating events that reduce power dissipation. In order to(More)
—This paper presents a low-power high-speed CMOS signaling interface that operates off of an adaptively regulated supply. A feedback loop adjusts the supply voltage on a chain of inverters until the delay through the chain is equal to half of the input period. This voltage is then distributed to the I/O subsystem through an efficient switching power-supply(More)