8051 microcontroller- muhammed ali mazidi

Mazidi is a good book. You can find it in the local book store.
But dont be totally dependent on it as there are few (not so bothering to a newbie) mistakes in the book.
If you use, virtually, any processor still made Mazdi has no info on the plethora of improvements to the I/O of modern '51s.

I recall some Mazdi believer who wanted to bit-bang I²C using a processor that had it in hardware.

Mazidi is a good book. You can find it in the local book store.
But dont be totally dependent on it as there are few (not so bothering to a newbie) mistakes in the book.
If you use, virtually, any processor still made Mazdi has no info on the plethora of improvements to the I/O of modern '51s.

I recall some Mazdi believer who wanted to bit-bang I²C using a processor that had it in hardware.

Is that some plural for Mazda?

I suspect the real problem is the lack of any competence in those teaching from the books, instead of having any real world, or current, experience.

I recall some Mazdi believer who wanted to bit-bang I²C using a processor that had it in hardware.

It was not me who said that, but I have done it.

Why? What a terrible thing to do you probably shout.

Unfortunately, some I²C hardware implementations are not as good as they should be. So doing it the hard way is sometimes the only sensible way out of a tricky situation.