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TRANSMITTER PART OF A SERIAL PERIPHERAL INTERFACE ON AN INTEGRATED POWER METER CIRCUIT
TRANSMITTER PART OF A SERIAL PERIPHERAL INTERFACE ON AN INTEGRATED POWER METER CIRCUIT
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机译：集成功率计电路上串行外围接口的发射器部分
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摘要
Inside the transmitter part (SPIS) of a serial peripheral interface (SPI) the signals (NEW) and (GRP) are generated, which are recognised by the receiving 32-bit microprocessor and represent a label regarding the accuracy and type of the sent data. The original information, which has been prior sending processed by an EXOR gate is at the receiving microprocessor again obtained through EXOR commands. The specified label, which has been integrated into the parity code (P) following the operation Px = P EXOR X, is removed after receipt by applying the equivalent operation P = Px EXOR X. With the help of the parity code the receiving microprocessor detects individual defective bits as a result of interference along the transmission path. It can also detect errors in the accuracy - by carrying the (NEW) signal - as well as an error in the series of the received data - by carrying the (GRP) signal.
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机译：在串行外围接口（SPI）的发送器部分（SPIS）内，生成信号（NEW）和（GRP），这些信号由接收的32位微处理器识别，并表示有关所发送数据的准确性和类型的标签。先前已由EXOR门处理过的原始信息再次在接收微处理器处通过EXOR命令获得。在接收到之后，通过执行等效操作P = Px EXOR X，将指定的标签（已集成到操作Px = P EXOR X中的奇偶校验码（P）中）删除。借助该奇偶校验码，接收微处理器可以检测到由于沿传输路径的干扰而产生的单个缺陷位。它还可以通过传送（NEW）信号来检测准确性中的错误，以及通过传送（GRP）信号来检测一系列接收到的数据中的错误。
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