Unibus data communication method
A data communication, single-bus technology, applied in the field of communication, can solve problems such as single, no communication rate synchronization function, etc., achieve low power consumption, simple and easy circuit logic operation, and improve reliability and flexibility.
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[0025] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.
[0026] The Single-Line bus system consists of a single bus master and one or more slave devices. In any case, the bus master is usually a microcontroller. The Single-Line protocol works according to the state of the bus in specific time slots that begin with the falling edge of a sync pulse sent by the bus master. Since the Single-Line bus system has only one data line, in order to make the above operations easy to implement, each device on the bus needs to have an open-drain or tri-state output port, while the Single-Line port of the slave device uses an open-drain output. .
[0027] The idle state of the Single-Line bus is high...
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