8051 Interfacing with the 8255
SUBJECT : Microcontrollers and Applications
AUTHOR : Trupti Patil and Prashant Bachanna
PUBLISHED ON : 03/04/18
NUMBER OF PAGES : ( 9 Pages)
PRICE : Rs 5.85

In this section we study the 8255 chip. The 8255 is a 40 pin DIP chip. It has three separately accessible ports. The ports are each 8 bit and are named A,B and C. The individual ports of the 8255 can be programmed to be input or output and can be changed by dynamically. In addition 8255 ports have handshaking capability, thereby allowing interface with devices have handshaking, signal, such as printers.