‹ lexicon kernel CPOL Clock Polarity; sets whether SCLK idles low (0) or high (1).+ Defined in the The SPI Bus entry of the archive. ask the oracle › read The SPI Bus › alongside it Controller/PeripheralCPHACSDaisy ChainDMAFull-DuplexMISOMOSISCLKSPISPI Mode 0-3spi_device