I am trying to debug some simple code to read and write to the SPI port on an ADuC831. I can setup the port just fine and send data out. However, is there a way for me to "read in" a value into the SPIDAT register? Example// ISPI = 0; //init SPI interrupt SPIM = 1; //Declare as Master CPOL = 0; //Idle Clock Polarity Low CPHA = 1; //Data sent on Leading edge SPR1 = 1; // SPR0 = 1; // divide clock by 16 SPE = 1; //activate spi port while (1) { SPIDAT = 0xA0; //send a control byte out while (!ISPI); //wait until interrupt i = SPIDAT; // read in value in SPIDAT } I am not able to enter in a value for SPIDAT into the SPI Peripheral window. It just keeps reading in i = 0x00. Any help?