Mode 2 of 8255 PPI | STROBED BIDIRECTIONAL I/O

One can configure 8255 in different modes by sending appropriate control word to the control word register. Bidirectional Input Output mode or Mode 2 is used only for Group A port pins of 8255. In this mode Port A is used as bidirectional Input Output port. When a bidirectional peripheral is connected to the 8255 then this mode is used. In this video Mode 2 of 8255 is explained with timing diagram and proper explanation.

[@4pelan]

Very nice explanation of the 8255 mode 2 and use of the timing diagram. Do you have source to demonstrate the concept? Thanks, Darrell