Channel status management system for multi-channel LIU
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United States of America Patent
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Issued Date -
Dec 16, 2004
app pub date -
Jun 13, 2003
filing date -
Jun 13, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Channel status management system for multi-channel LIU. A method for managing status information in a multi-channel Line Interface Unit (LIU) embodied in an integrated circuit and having a plurality of channels and operable to generate a plurality of status signals regarding the status of various associated parameters relating to the operation of the LIU The method includes the steps of first providing a plurality of channel registers in channel register space for each of the channels in the LIU, select ones of the registers designated for storing status information for the associated channel and wherein there can be a change of state of the status for any parameter associated with the operation of the associated channel. Upon the occurrence of a change of state (CoS) for any of the status information, a CoS indication is provided therefor. A channel status information system (CSM) is provided for monitoring for the occurrence of a CoS indication at any of the channels. The CSM makes available to an external controller such occurrence. When the external controller requests information regarding such occurrence of the CoS indication, the CSM makes available information about the status information that was associated with the CoS that provided the CoS indication.
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