The document discusses the AVR CPU architecture, specifically the ATmega328 microcontroller. It provides a brief history of how the AVR was developed by students at NIT and later acquired by Atmel. The AVR uses a Harvard architecture and comes in various categories. The ATmega328 is an example of an AVR microcontroller that has a specific configuration.

1. AVR CPU –
Atmega328
Yong Heui Cho @ Mokwon University
Some of slides are referred to:
[1] Mohamed Abd ElHay, Microcontroller, slideshare.

2. Basic Computer Design
7. CPU Architecture -
Advanced
8. ARM CPU
9. AVR CPU – ATmega328
10. Role of CPU

3. 3
History of AVR
• Proposed by Alf-Egil Bogen and Vegard Wollan,
students at NIT
• Manufactured by Nordic VLSI where A & V
worked as students
• Sold to Atmel and further developed by A & V at
Atmel Norway in 1996
3

4. 4
Microcontroller
4□ Courtesy to Mohamed Abd ElHay, Microcontroller, slideshare.

5. Harvard Architecture

6. 6
AVR Architecture
6

7. 7
AVR Categories
7□ Courtesy to Mohamed Abd ElHay, Microcontroller, slideshare.

8. 8
Comparison of CPU
8□ Courtesy to Mohamed Abd ElHay, Microcontroller, slideshare.

9. 9
Configuration of ATmega16
9□ Courtesy to Mohamed Abd ElHay, Microcontroller, slideshare.