To fix this, [Max] developed a simple external circuit that could be placed on each node of a I2C or SPI communication bus. In the event of malfunction, that node can be cut off from the bus by ...

I2C and SPI are mature but they do have problems ... However, there’s something gratifying about knowing you could bit bang your UART or SPI bus in a few hours of fun coding if you had to.

2-2- Addressing Unlike SPI, I2C lacks slave select lines ... 2.5- Repeated start condition None of the master can use the bus for communication amidst each start and stop condition pair as the bus is ...

Mainly because of its simplicity. There are no start nor stop bits, no parity like in UART bus, it enables higher transfer rates than I2C. There are plenty pros. The logic resources needed to ...