Microcontroller Architecture and Interfacing Colorado School of Mines Professor William HoffASCIIAmerican Standard Code for Information Interchange1
Microcontroller Architecture and Interfacing Colorado School of Mines Professor William HoffASCII•ASCII is a character-encoding scheme –Originally developed for teleprintersin the 1960s–Now used to represent text in almost all computers and communications equipment•We’ll see it again when we study communications standards such as RS-232•It has code words that are 7 bits long*–Code words represent letters, numbers, punctuation symbols, etc–In addition there are some code words that are “control” characters–Some control characters were useful for teleprintersbut don’t make much sense today2* There are (non standard) extensions to 8 bits; see for example http://www.ascii-code.com/