Single-pin command technique for mode selection and internal data access
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United States of America Patent
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May 9, 2017
Grant Date -
Aug 21, 2014
app pub date -
Feb 15, 2013
filing date -
Feb 15, 2013
priority date (Note) -
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Abstract
A single pin is used to control an operating mode of an integrated circuit and to supply serial data to a host controller. The internal operating mode can be changed by changing a static level on an input/output terminal and maintaining that static level longer than a first time threshold. A read transaction from the integrated circuit can be performed in response to a predetermined sequence on the input/output terminal that includes a pulse that lasts a first predetermined time, the first predetermined time being less than the first time threshold.
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