16 1 MemTest Intro 

@27:06 Why is that A2 reads 0 instead of 1?

Great! Your videos are always informative.

@23:26 For AF why only no 4 is considered and other 3 ignored? Given a certain address multiple cells are accessed.

why scan testing for logic is not applicable to memory?

thank you very much . That's great !

i love you, 李建模

thanks