Apparatus and method for producing identifiers regardless of mixed device type in a serial interconnection
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United States of America Patent
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Jun 5, 2012
Grant Date -
Jan 20, 2011
app pub date -
Sep 28, 2010
filing date -
Dec 6, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for assigning a device identifier for a plurality of devices of mixed type (e.g., DRAMs, SRAMs, MRAMs, and NAND-, NOR- and AND-type Flash memories) in a serial interconnection configuration are disclosed. One device of the serial interconnection configuration receives a device identifier (ID) and a device type (DT) as a packet through its serial input connection. A first determination is performed as to whether the DT of the device contains pre-defined data corresponding to one including all device types to provide a first determination result; and a second determination of the DT of the device is performed in response to the received DT to provide a second determination result. An ID is produced and output to a next device in response to the first and second determination results. The received ID or the produced ID is assigned to the respective devices.
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