Computer Hardware User Manual

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CHAPTER 4
I/O PORTS
This chapter describes the functions and operations of
I/O ports.
4.1 Overview of I/O Ports
4.2 Port 0
4.3 Port 3
4.4 Port 4
4.5 Port 5
4.6 Port 6
4.7 Port 7
4.8 Programming Example of I/O Port