Auto Sleep Mode - 1.0 English

Embedded Memory Generator LogiCORE IP Product Guide (PG326)

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1.0 English

UltraRAM offers a feature called the Auto Sleep Mode that looks ahead to RAM accesses through a variable-length input pipeline, and dynamically sleeps when none are pending. When AUTO_SLEEP_TIME is 0 (default), the feature is disabled and no input pipeline exists. When AUTO_SLEEP_TIME is nonzero (valid only when MEMORY_PRIMITIVE is UltraRAM), that number of input register stages is constructed for all module input signals. However, reset ports rst[a|b] will not have any pipeline stages. An equal number of register stages is required on all inputs for simulation accuracy.