System and method of switching a hot-pluggable peripheral device
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United States of America Patent
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N/A
Issued Date -
Nov 14, 2002
app pub date -
May 10, 2001
filing date -
May 10, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A processor-based device includes a hot-plug capability which permits a peripheral device to be connected to the processor-based device without first removing power. The hot plug capability is implemented by a control circuit in the processor-based device which controls the application of power to the peripheral device in response to a device detect signal provided by the peripheral device when it is connected to the processor-based device. The control circuit also monitors the voltage applied to the power rail for the peripheral device. When the voltage on the peripheral device power level reaches a threshold, the control signal provides a signal indicating that the processor-based device may access the peripheral device.
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