Digital update scheme for adaptive impedance control of on-die input/output circuits
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United States of America Patent
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Jun 3, 2003
Grant Date -
Apr 3, 2003
app pub date -
Sep 28, 2001
filing date -
Sep 28, 2001
priority date (Note) -
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Abstract
An adaptive impedance matching arrangement has an adaptive impedance circuit and a control circuit. The adaptive impedance circuit matches the impedance of a bus and is controlled according to control bits supplied by the control circuit. The control bits are updated according to a signal indicating the state of a queue maintaining transactions for the bus.
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