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The programmable clock networks in FPGAs have a significant impact on overall power, area, and delay. Not only does the clock network itself dissipate a significant amount of power, since it connects to every latch on the FPGA and toggles every cycle, but the design of the clock network also affects how efficiently the rest of the application can be implemented since it imposes constraints on the...
This paper presents a DVS (Dynamic Voltage Scaling) enabled SoC (System-on-Chip) processing platform based on the Leon3 open-source processor and dynamically reconfigurable clock synthesis technology available in Virtex-4 Xilinx FPGAs. A special DVS monitor unit maintains correct operation of the processor core at a given voltage by tracking the behavior of an internal delay line and stopping the...
This paper presents a technique to fix timing violations caused by process variations in FPGAs by adjusting the clock skews of flip-flops. This involves making the clock distribution network tunable by adding programmable delay elements to compensate for variations. We propose generic as well as chip-specific skew assignment schemes that are robust to variations. The two proposed schemes result in...
This paper presents an approach for efficiently mapping loops and array intensive applications onto FPGA architectures with distributed RAMs, multipliers and logic. We perform a data dependency based, two level partitioning of the application's iteration space under target FPGA architectural constraints, to achieve better performance. It is shown that, this approach can result in a super-linear speedup;...
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