Konstantinos Tatas

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Exploitation of data re-use in combination with the use of custom memory hierarchy that exploits the temporal locality of data accesses may introduce significant power savings, especially for data-intensive applications. The effect of the data-reuse decisions on the power dissipation but also on area and performance of multimedia applications realized on(More)
In this paper, the EX-VPR tool, which used for architecture level exploration, is presented. This tool belongs to an integrated framework (MEANDER) for mapping applications into a fine-grain reconfigurable platform (FPGA). Having as input VHDL description of an application, the framework produces the appropriate configuration bitstream. The proposed tool(More)
SUMMARY A complete system for the implementation of digital logic in a Field-Programmable Gate Array (FPGA) platform is introduced. The novel power-efficient FPGA architecture was designed and simulated in STM 0.18 µm CMOS technology. The detailed design and circuit characteristics of the Configurable Logic Block, the interconnection network, the switch box(More)
A novel bitstream generation algorithm and its software implementation are introduced. Although this tool was developed for the configuration of AMDREL FPGA reconfigurable platform [13], it could be used to program any other compatible device. This tool is the only one known academic implementation for FPGA configuration with such features. Among them are(More)
A novel configuration bitstream generation tool for a custom FPGA platform is presented. It can support a variety of devices of similar architecture. The tool exhibits technology independence and is easily modifiable. The tool also allows partial reconfiguration as long as the target platform also does.
In this paper a complete system for the implementation of digital logic in a fine-grain reconfigurable platform is introduced. The system is composed of two parts: the fine-grain reconfigurable hardware platform (FPGA) on which the logic is implemented and the set of CAD tools for mapping logic to the FPGA platform. It is the first such complete academic(More)
A complete system for the implementation of digital logic in a fine-grain reconfigurable platform is introduced. The system is composed of two parts: The fine-grain reconfigurable hardware platform (FPGA) on which the logic is implemented and the set of CAD tools for mapping logic to the FPGA platform. The novel energy-efficient FPGA architecture was(More)
A run-time reconfigurable multiply-accumulate (MAC) architecture is introduced. It can be easily reconfigured to trade bitwidth for array size (thus maximizing the utilization of available hardware); process signed-magnitude, unsigned or 2's complement data; make use of part of its structure or adapt its structure based on the specified throughput(More)
In this paper, the design of an embedded FPGA architecture (i.e. con-figurable logic blocks) is presented and a complete tool-supported design flow starting from architecture level (i.e. RT-level) and ending with the derivation of the reconfiguration bitstream for the FPGA programming is introduced. The proposed design flow consists of new and modified and(More)
The design of a novel embedded FPGA reconfigurable hardware architecture is introduced. The architecture features a number of circuit-level low-power techniques, since power consumption is considered a primary concern. Additionally, a complete set of tools facilitating implementation of applications on the proposed FPGA was presented, starting from an RTL(More)