Keyboard Interfacing With 8086 Using 8255 153.pdfl 👊
Download ✯ How to Interface a Keyboard with 8086 Microprocessor Using 8255 Programmable Peripheral Interface In this article, you will learn how to interface a keyboard with 8086 microprocessor using 8255 programmable peripheral interface (PPI). Keyboard interfacing is a process of connecting a keyboard to a microprocessor and transferring the key codes from the keyboard to the microprocessor. Keyboard interfacing can be done in various modes, such as simple input-output mode, handshake mode, or bi-directional mode. In this article, we will focus on the simple input-output mode using 8255 PPI. What is 8255 PPI? 8255 PPI is a general purpose programmable I/O device designed to interface the CPU with its outside world such as ADC, DAC, keyboard etc.
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