Sorry, but I'm not exactly sure which bullet you mean. If you're referring to the very first point on the slide "Number of data bits / bytes in SPI is not fixed", then this is correct because there are many SPI implementations that transfer more than a single byte. If you're referring to the point about the stop condition, SDA only transitions for data when clock (SCL) is low - a low-to-high transition of SDA when SCL is high indicates the stop condition. Again, sorry if I'm misunderstanding the question!
Thanks Paul, great video
Is the first bullet at 20:27 (SPI) a typo?
Sorry, but I'm not exactly sure which bullet you mean. If you're referring to the very first point on the slide "Number of data bits / bytes in SPI is not fixed", then this is correct because there are many SPI implementations that transfer more than a single byte. If you're referring to the point about the stop condition, SDA only transitions for data when clock (SCL) is low - a low-to-high transition of SDA when SCL is high indicates the stop condition. Again, sorry if I'm misunderstanding the question!