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Embedded Software for SoC - Grupo de Mecatrônica EESC/USP

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Low Energy Associative Data Caches <strong>for</strong> <strong>Embed<strong>de</strong>d</strong> Systems 521<br />

savings are greater <strong>for</strong> higher levels of associativity due to the increased D-<br />

cache energy consumption savings and to the increased share of the D-cache<br />

energy consumption in the total energy consumption budget.<br />

The energy consumption savings <strong>for</strong> a data cache system using a WDU<br />

varies significantly with the associativity of the data cache. Figure 37-8 shows<br />

the data cache energy consumption savings when using a 32-entry WDU with

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