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The 8085 Microprocessor: Architecture, Programming and Interfacing by Umashankar B.S., Udaya Kumar K.

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12

Addressing of I/O Ports

images Need for I/O ports

images Comparison of I/O port chips and memory chips

images IN and OUT instructions

images IN a8 instruction

images OUT a8 instruction

Memory-mapped I/O

I/O-mapped I/O

Comparison of memory-mapped I/O and I/O-mapped I/O

Merits ...

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