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Lec 55 by rewomeg204 is a document available to read on EtoBox.

What is Lec 55 about?

This lecture discusses the interfacing of the 8255 chip with microprocessors and microcontrollers, focusing on the function of pins A0, A1, and CS bar for port selection and chip activation. It explains the different modes of operation for the 8255, including mode 0 (basic input/output), mode 1 (with handshaking), and mode 2 (bi-directional I/O), as well as the control register settings required for configuring the ports. The document also outlines the address mapping for accessing the ports and highlights

Author

rewomeg204

Language

EN