On a write, the DIF is generated by the host bus adapter (HBA), based on the block data and logical block address.
在写数据时，主机总线适配器(HBA)根据块数据和逻辑块地址生成dif。
The data from the sensor gets read back together with all the other bus lines. This process occurs simultaneously with the write process.
从传感器反馈回来的数据在其他的数据总线上重复执行，这个进程和写的进程同时发生。
Read and write and temperature transform power from the data bus, the bus itself can also be articulated by the DS1820 to the power supply, and no additional power supply.
读写及温度变换功率来源于数据总线，总线本身也可以向所挂接的DS1820供电，而无需额外电源。
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