My customer is designing a 1 master (Renesas RX651) 3 slaves (ADS1231) serial communication system, could you help answer below questions?
1. Does this ADC supports SPI?
2. If so, can we use PDWN as SS?
3. If PDWN is Low(enabled), DOUT is HI-Z?
4. Besides SPI, Do we need another port for Data-Ready?
5. Could you explain the communication algorithm of ADS1231?