How to Interface with Omap L138 with ADS1174/1178

Peter,

    The Data Ready is typically used to alert the host processor that data needs to be read from the ADC. The OMAP-L138 is a SPI Chip Select Signal that is typically used to select which device on the SPI bus the master wants to communicate with. Typically the DRDY signal is connected to an GPIO or some other input to the L138, and the Chip Select. So everything looks ok expect for the OMAP SCS and the ADS DRDY pin.