Integrated PC card host controller for the detection and operation of a plurality of expansion cards
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United States of America Patent
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Jul 11, 2006
Grant Date -
Jun 10, 2004
app pub date -
Nov 28, 2003
filing date -
Aug 5, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated controller for the detection and operation of both PC Cards, smart cards and passive smart card adapter cards. In one aspect, the invention detects the presence of standard expansion cards or passive smart card adapters by utilizing the reserved detection and voltage selection signal area defined by the PC Card specification. In another aspect, the invention provides an integrated controller that includes logic to operate either a standard expansion card or a passive smart card adapter by reassigning certain PC Card signal lines to operate a standard expansion card or a passive smart card adapter, thereby eliminating the need to provide pins in addition to those defined by the PC Card specification.
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