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Multiplexing Display and Keypad Lab by TRISHA ISOBELLE ARBOLEDA is a document available to read on EtoBox.
What is Multiplexing Display and Keypad Lab about?
The document describes an assembly code program that implements a 3x8 decoder with an enable input and inverted outputs to multiplex a 4x3 keypad and display. The program uses ports P0, P1, P2 and P3 to scan the rows and columns of the keypad and display the output. It checks the state of each key using conditional jump instructions and stores the pressed key in register B.
- Author
- TRISHA ISOBELLE ARBOLEDA
- Language
- EN