The ADS131A0x is designed with an interface protocol that expands the capability of outputting more ADC system monitors without disrupting data flow. This protocol communicates through standard serial peripheral interface (SPI) methods, using allocated device words within a single data transmission frame to pass information. A single data frame starts when the interface is enabled, typically done by pulling the CS line low. The duration of a data frame is made up of several device words with programmable bit lengths. A visual representation showing how a data frame is made up of multiple device words is shown in Figure 52.