This paper describes a non-volatile reprogrammable FPGA fabric, whose configuration data are provided directly by flash memory. The fabric is optimized for low-cost, low-power applications, leveraging the density of f...
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ISBN:
(纸本)9781450305549
This paper describes a non-volatile reprogrammable FPGA fabric, whose configuration data are provided directly by flash memory. The fabric is optimized for low-cost, low-power applications, leveraging the density of flash and the elimination of conventional configuration SRAM and its attendant static power. After surveying the necessary background on flash and its application to FPGAs, the IT flash cell is described along with relevant novel aspects of the fabric architecture. The addition of a third level of switching between inter-cluster signals and logic inputs helps to reduce area and raise typical utilization above 95%. Despite the longer signal path, performance is maintained by synergism between the improved routing flexibility and extreme minimization of the fastest LUT input delay. Test cost is reduced by built-in circuits that can test all switches without reprogramming the flash memory. The fabric has been implemented in a 65nm CMOS embedded flash process.
The development of future FPGA fabrics with more sophisticated and complex logic blocks requires a new CAD flow that permits the expression of that complexity and the ability to synthesize to it. In this paper, we pre...
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ISBN:
(纸本)9781450305549
The development of future FPGA fabrics with more sophisticated and complex logic blocks requires a new CAD flow that permits the expression of that complexity and the ability to synthesize to it. In this paper, we present a new logic block description language that can depict complex intra-block interconnect, hierarchy and modes of operation. These features are necessary to support modern and future FPGA complex soft logic blocks, memory and hard blocks. The key part of the CAD flow associated with this complexity is the packer, which takes the logical atomic pieces of the complex blocks and groups them into whole physical entities. We present an area-driven generic packing tool that can pack the logical atoms into any heterogeneous FPGA described in the new language, including many different kinds of soft and hard logic blocks. We gauge its area quality by comparing the results achieved with a lower bound on the number of blocks required, and then illustrate its explorative capability in two ways: on fracturable LUT soft logic architectures, and on hard block memory architectures. The new infrastructure attaches to a flow that begins with a Verilog front-end, permitting the use of benchmarks that are significantly larger than the usual ones, and can target heterogenous FPGAs. Copyright 2011 acm.
The Itoh-Tsujii multiplicative inversion algorithm (ITA) is the most efficient finite field inversion algorithm for hardware based implementations over extended binary fields. In this paper we propose a novel techniqu...
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Asynchronous serial transceivers have been recently used for data multiplexing in large on-chip systems to alleviate the routing congestion and improve the routability. FPGAs have considerable potential for using the ...
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In this paper, we introduce a novel FPGA architecture with memristor-based reconfiguration (mrFPGA). The proposed architecture is based on the existing CMOS-compatible memristor fabrication process. The programmable i...
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Uncertainty in performance of FPGAs is becoming an important issue due to increased process variations in nanometer regime. Therefore, it is vital to decrease the impact of variability in these devices. FPGA routing a...
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We present a methodology for power estimation of non-fractional divider cores implemented in FPGAs. The methodology takes into account the divider structure and the signal statistics at the inputs: mean, variance, and...
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The proceedings contain 34 papers. The topics discussed include: emerging application domains - research challenges and opportunities for FPGAs;towards automated ECOs in FPGAs;clock power reduction for Virtex-5 FPGAs;...
ISBN:
(纸本)9781605584102
The proceedings contain 34 papers. The topics discussed include: emerging application domains - research challenges and opportunities for FPGAs;towards automated ECOs in FPGAs;clock power reduction for Virtex-5 FPGAs;choose-your-own-adventure routing: lightweight load-time defect avoidance;towards reliable 5Gbps wave-pipelined and 3Gbps surfing interconnect in 65nm FPGAs;a comparison of via-programmablegate array logic cell circuits;a comparison of CPUs, GPUs, FPGAs, and massively parallel processor arrays for random number generation;a high-performance FPGA architecture for restricted Boltzmann machines;FPGA-based front-end electronics for positron emission tomography;FPGA-based face detection system using Haar classifiers;a 17ps time-to-digital converter implemented in 65nm FPGA technology;and FPGA technology mapping with encoded libraries and staged priority cuts.
This work describes a methodology for estimating switching activity, which is needed to evaluate power dissipation. The methodology is integrated in a VHDL to SystemC translation process and therefore needs no additio...
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A 65nm self synchronous fieldprogrammablegate array (SSFPGA) which uses autonomous gate-level power gating with minimal control circuitry overhead for energy minimum operation is presented. The use of self synchrono...
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