I am studying how i2c devices works...and I have downloaded a power point presentation from Google,
I have understood almost every basic concept, like, how the start and end of the transfer occur, what is SDA and SCL and what is master/slave.
but in this timing diagram, SDA supposed to show the transmission of data bits, i do not understand how the two lines of transmission are displaying in the SDA here which are over each other. shouldn't it be a single line for SDA too ? also, what does the dashed line indicating here ?