Memory system in which extended function can easily be set
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United States of America Patent
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Jul 30, 2019
Grant Date -
N/A
app pub date -
Mar 20, 2017
filing date -
Mar 20, 2017
priority date (Note) -
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Abstract
According to one embodiment, a memory system, such as a SDIO card, includes a nonvolatile semiconductor memory device, a control section, a memory, an extended function section, and an extension register. The extended function section is controlled by the control section. A first command reads data from the extension register in units of given data lengths. A second command writes data to the extension register in units of given data lengths. A extension register includes a first area, and second area different from the first area, information configured to specify a type of the extended function and controllable driver, and address information indicating a place to which the extended function is assigned, the place being on the extension register, are recorded in the first area, and the second area includes the extended function.
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