Managing wait states for memory access
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United States of America Patent
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Jul 18, 2017
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N/A
app pub date -
Jul 29, 2016
filing date -
Mar 15, 2013
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Abstract
A latch signal is received from a non-volatile memory device that is indicative of a current access time for the non-volatile memory device. The access time represents an amount of time required for the non-volatile memory device to make data available responsive to a request for data. A bus system clock signal is received. The latch signal is evaluated and a wait state for the non-volatile memory device is adjusted based on the evaluation. The wait state represents a number of cycles of the bus system clock used by a central processing unit for an access of the non-volatile memory device. A bus system data ready signal that is triggered based on the adjusted wait state is produced. The bus system data ready signal, when triggered, indicates that data is available responsive to the request.
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