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AM2320 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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AM2320 Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 27 page logic level "0"; during high clock line SCL and SDA data line is high logic level represents the current transmission "1." Logic "0" (low) and "1" (high) level, is related to the level of VDD decision (detailed in Table 3 AM2320 DC Characteristics table). In addition, each transmission of a data bit clock pulse is generated. Term Description Transmitter Send data to the device bus Receptor Device receiving data from the bus Host computer Transmit clock signal generating device initialization and termination sent Slave The device addressed by the host Multi-master At the same time there is more than one host attempts to control the bus, but do not destroy the message Arbitration There is a multiple hosts at the same time try to control the bus, but only allows it a control bus and make the message is not destroyed in the process Synchronous Two or more devices in the process of synchronizing the clock signal ◎Data validity Data line SDA data must remain stable during the high period of the clock. High or low state of the data line SDA is only in the low period of SCL clock line only allowed to change. But at the start and end I 2 C bus exceptions (for details see the start and stop conditions). Some other serial bus data as may be required valid edge (rising or falling) of the clock signal, but I 2 C bus is valid level. The specific timing diagram shown in Figure 6. Figure 6: Bit Transfer C bus ◎Start and stop conditions Start condition: Period when SCL is high, SDA high to low Start condition generating transition from. Bus after the start condition is generated in a busy state. The initial condition is often abbreviated as S. Stop condition: Period when SCL is high, SDA generates a stop condition low to high transition from. Bus stop condition is generated in an idle state. The stop condition abbreviated as P. Start and stop conditions diagram shown in Figure 7. - 6 - |
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