SPI is four wire interfaces and has many different implementations because there is based on the manufactures.

SPI also requires one additional chip select wire for each additional device on the bus, which quickly becomes cost-prohibitive in terms of number of pins and wires, and power.

I3C overcomes the limitations over SPI, as it uses only two wires and is well defined. I3C covers most of the speed range of SPI, but is not intended for the highest speed grades that really only work well with a point-to-point interface, such as for SPI Flash.

Maxvy Technologies provides state of art I3C Controller and many other MIPI IP like I3C master and slave Controller. Maxvy Provides several design and Verification IP for SoC design and development.