Data transmission and reception system, master device, and slave device
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United States of America Patent
Stats
-
Dec 20, 2011
Grant Date -
Oct 22, 2009
app pub date -
Apr 15, 2009
filing date -
Apr 22, 2008
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A master device for performing data transmission and reception with a slave device includes: a data transmission and reception circuit for performing transmission of data to the slave device and reception of data from the slave device via a first transmission path in a time division manner; and a control circuit wherein when data is transmitted or received, the control circuit provides a clock signal synchronous with the data to the slave device via a second transmission path, the control circuit provides a signal for setting a state of the slave device, to the slave device via a third transmission path while setting the clock signal at a first level, and the control circuit provides a signal for serving as a trigger for the slave device performing a predetermined operation, to the slave device via the third transmission path while setting the clock signal at a second level different from the first level.
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