Video tutorial on 8255 internal architecture and interfacing with microprocessor 8085

In this Video tutorial on 8255 internal architecture and interfacing with microprocessor 8085  is become very helpful to you. In this video tutorial i discus on some basic question which is essential to know about microprocessor 8085. Those are 

• What is PPI Device? 
• why it needed for interfacing with 8085 microprocessor? 
• Internal architecture of 8255 PPI Device

And i use basic block diagram of 8255 internal architecture and interfacing with microprocessor 8085  which will make you understand better way.

Here you see the Video tutorial on 8255 internal architecture and interfacing with microprocessor 8085 ( 6:24 Minute )