ZHCSCX0D January 2014 – October 2017 ADC12J1600 , ADC12J2700
PRODUCTION DATA.
The serial interface is accessed using the following four pins: serial clock (SCLK), serial-data in (SDI), serial-data out (SDO), and serial-interface chip-select (SCS). Registers access is enabled through the SCS pin.
Each register access consists of 24 bits, as shown in Figure 2. The first bit is high for a read and low for a write.
The next 15 bits are the address of the register that is to be written to. During write operations, the last 8 bits are the data written to the addressed register. During read operations, the last 8 bits on SDI are ignored, and, during this time, the SDO outputs the data from the addressed register. The serial protocol details are illustrated in Figure 67.
Figure 67. Serial Interface Protocol - Single Read / Write