I have been having some difficulty with getting my ADS1274 itnerfaced with my microcontroller. The ADC is setup in SPI-mode (Dynmaic: 000). According to the data sheet I expect to see the Drdy line pulse low and stay low until either it receives the first clock or the next sample is ready. Unfortunately, sometimes I am getting this behavior, and sometimes it seems like the DRdy line just momentarily pulses and immediately returns back to its previous level. Attached is a oscilloscope trace of what I am observing. Can anybody tell me why the Drdy doesn't seem to be behaving properly to specification?