Signal Name Description External Signals SPICLK SPI clock SPISIMO SPI slave in master out SPISOMI SPI slave out, master in SPISTE SPI slave transmit enable(optional) Control SPI CLock Rate LSPCLK Interrupt signals SPIRXINT Transmit interrupt/ Receive Interupt in non FIFo mode (referred to as SPl IND) Receive in interrupt in FIFo mode SPITXINT Transmit interupt -FIFo