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Data integrity is important. One way to protect data integrity is attaching an identifying tag to individual data. The authenticity of the data can then be checked against its tag. If the data is altered by the adversary, the related tag becomes invalid and the attack will be detected. This paper studies an existing tag design (CETD) for memory data in embedded processor systems, where data that are...
Energy-efficient scheduling approaches are critical to battery driven real-time embedded systems. Traditional energy-aware scheduling schemes are mainly based on the individual task scheduling. Consequently, the scheduling space for each task is small, and the schedulability and energy saving are very limited, especially when the system is heavily loaded. To remedy this problem, we propose a novel...
Power consumption is a critical design issue in embedded systems. This paper presents a structural customization approach, targeting two basic design structures for a multiple choice function that is common in an embedded system: tree structure and chain structure. A theoretical comparison between these two structures is performed. We find that the chain structure has a lower area cost and offers...
The on-chip instruction cache is a potential power hungry component in embedded systems due to its large chip area and high access-frequency. Aiming at reducing power consumption of the on-chip cache, we proposed a Reduced One-Bit Tag Instruction Cache (ROBTIC), where the cache size is judiciously reduced and the cache tag field only contains the least significant bit of the full tag. We developed...
Power consumption is a critical design issue in embedded processor design. One of common components in the processor is the Arithmetic and Logic Unit (ALU). Usually, ALUs are designed with a combinational logic circuit containing a number of functional components for different arithmetic and logic operations. An ALU can be constructed with a tree or a chain structure. Existing approaches to reduce...
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