Data processing apparatus
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United States of America Patent
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Feb 28, 2012
Grant Date -
May 14, 2009
app pub date -
Oct 13, 2008
filing date -
Nov 14, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An access stop control apparatus is provided in a resource control apparatus so that reception of access from a master apparatus is temporarily stopped during changing of a clock frequency and the clock frequency is changed at safe timing. Thereby, the operation of the master apparatus does not need to be stopped during changing of the clock frequency and a period for which access to a resource is stopped can be suppressed. Therefore, execution of an application requiring real-timeness is not affected.
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