Logic block packing is a necessary procedure of synthesis in FPGA CAD *** academic field,the existent packing algorithm,such as TV-Pack,is architecture-dependent and only applied to a certain type of logic *** this pa...
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Logic block packing is a necessary procedure of synthesis in FPGA CAD *** academic field,the existent packing algorithm,such as TV-Pack,is architecture-dependent and only applied to a certain type of logic *** this paper,a novel function level modeling method for logic block is proposed. Furthermore,UniversalPack,a universal logic block packing algorithm based on this modeling,is presented and *** experimental results show that this algorithm is architecture-independent and able to deal well with different types of logic *** the modeling method is proved to be right and quite effective for logic block packing.
At present time, model order reduction is a well-established technique for fast simulation of large-scale models based on ordinary differential equations, especially those in the field of integrated circuits and micro...
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A new RSA/ECC coprocessor with the characteristic of reconfiguration is proposed in this paper, which can meet the requirements of both GF(p) and GF(2'") fields and perform the prevalent cryptographies such a...
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ISBN:
(纸本)078038637X
A new RSA/ECC coprocessor with the characteristic of reconfiguration is proposed in this paper, which can meet the requirements of both GF(p) and GF(2'") fields and perform the prevalent cryptographies such as RSA and ECC. The coprocessor has the merit of reconfigurable architecture, and it can perform the modular multiplication from 32-bit to 512-bit without any modification to its hardware. Based on 0.35 /spl mu/m CMOS technology, area of the coprocessor is about 45K gates, and system frequency can up to 100MHz, the 512-bit modular multiplication achieve 190kbps and the 233-bit ECC encryption rate of 50kbps.
A mid-IR thermal source, based on electrical heating of a platinum film, has been studied. The IR source, with effectively emitting area diameters of 1.6 mm, is obtained from heated platinum thin film resistors deposi...
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A mid-IR thermal source, based on electrical heating of a platinum film, has been studied. The IR source, with effectively emitting area diameters of 1.6 mm, is obtained from heated platinum thin film resistors deposited on a Si/sub 3/N/sub 4//SiO/sub 2/ membrane. The IR source can emit wideband infrared light with a peak wavelength of /spl lambda/=2.62 /spl mu/m at 1106 K and be adapted to direct modulation with variable voltage. Appropriate heat transfer makes it possible to reach a modulation frequency as high as 50 Hz. Such specifications meet the requirements of the various IR gas sensors and can be regarded as a new thermal IR sources to be used in NDIR (non-dispersive infrared) gas analyzers.
A novel gas sensor based on nanosized zeolite for the detection of nerve agent simulant gas Dimethylmethylphosphonate (DMMP) is developed in this work. Nanosized ZSM-5 zeolite films and Ag+ modified ZSM-5 zeolites fil...
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A novel 2D nanometer Edge Contact Type Cell for Phase Change RAM is manufactured, in which the active area can be controlled mainly by the thickness of both bottom electrode film and the GST film. The high resistive G...
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Presented herein is an efficient simulation technique enabling systematic investigation of the soft programming over-erased flash EEPROM cells. The simulation provides a method by which to find the optimal soft progra...
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A 900MHz CMOS PLL using current-adjustable charge-pump circuit and on-chip loop filter with initialization circuit is presented. The charge-pump current is insensitive to the changes of temperature and power supply. T...
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Embedded systems need a low-cost and high-performance microprocessor. And Java has been used widely in embedded systems like smart card. But most general processors execute Java bytecode instructions inefficiently and...
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Embedded systems need a low-cost and high-performance microprocessor. And Java has been used widely in embedded systems like smart card. But most general processors execute Java bytecode instructions inefficiently and difficultly in software based on "soft" Java Virtual Machines. Our 32-bit RISC with java extension overcomes the conflict. The java extension of RISC, based on a 32-bit RISC and easy to switch to a java processor, can spend less cost to obtain the capability of efficient executing of native RISC instruction and java CVM bytecode instructions, which is convenient for consumers on many occasions and has better cost performance
In this paper, we develop a wavelet collocation method with nonlinear auto-companding for behavioral modeling of analog circuits. The companding function is automatically constructed according to the initial error dis...
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ISBN:
(纸本)0780377613
In this paper, we develop a wavelet collocation method with nonlinear auto-companding for behavioral modeling of analog circuits. The companding function is automatically constructed according to the initial error distribution obtained through approximating the input-output function of the circuit blocks by conventional wavelet collocation method. Compared with the published modeling approaches, the proposed nonlinear auto-companding method works more efficiently not only in controlling the error distribution but also in reducing the modeling errors. A switched-current filter example is employed to demonstrate the promising features of the proposed method.
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