Master-slave data transmission system employing a flexible single-wire bus
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United States of America Patent
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Aug 17, 1993
Grant Date -
N/A
app pub date -
Nov 22, 1991
filing date -
Dec 8, 1990
priority date (Note) -
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Abstract
A master-slave data transmission system employs a flexible single-wire bus and where any master unit can send data to or read data from any slave at a single time. Data transfer is accomplished by means of a flexible message format having a variable-length address section and a variable-length data section, with the beginning and end of the individual message sections being defined by labels, and a fixed bit clock being transmitted for a given interval before and/or after the message. During multiple master operation, a priority control arrangement prevents two or more masters from accessing the single-wire bus at the same time.
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