MIPI I3C is backward compatible with many Legacy I2C Devices, but I3C Devices also support higher speed (with SCL clock speed up to 12.5 MHz) and new communication modes. MIPI I3C modes include Single Data Rate (SDR) Mode, High Data Rate (HDR) Mode. HDR Mode is also divided into Dual Data Rate (HDR-DDR) Mode, Ternary Symbol Legacy (HDR-TSL) Mode, Ternary Symbol Pure-bus (HDR-TSP) Mode, and Bulk Transport (HDR-BT) Mode.
MIPI I3C Electrical Validation offers various electrical measurements compliance testing as specified in the MIPI I3C Specification (currently supports MIPI I3C version 1.1.1).