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ATmega328P Datasheet(PDF) 342 Page - ATMEL Corporation

Part # ATmega328P
Description  8-bit Microcontroller with 32K Bytes In-System Programmable Flash
PDF  345 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega328P Datasheet(HTML) 342 Page - ATMEL Corporation

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342
7810A–AVR–11/09
ATmega328P [Preliminary]
20.8
Register Description ......................................................................................203
21
2-wire Serial Interface .......................................................................... 206
21.1
Features ........................................................................................................206
21.2
2-wire Serial Interface Bus Definition ............................................................206
21.3
Data Transfer and Frame Format ..................................................................208
21.4
Multi-master Bus Systems, Arbitration and Synchronization .........................211
21.5
Overview of the TWI Module .........................................................................213
21.6
Using the TWI ................................................................................................215
21.7
Transmission Modes .....................................................................................219
21.8
Multi-master Systems and Arbitration ............................................................232
21.9
Register Description ......................................................................................233
22
Analog Comparator ............................................................................. 238
22.1
Overview ........................................................................................................238
22.2
Analog Comparator Multiplexed Input ...........................................................238
22.3
Register Description ......................................................................................239
23
Analog-to-Digital Converter ................................................................ 242
23.1
Features ........................................................................................................242
23.2
Overview ........................................................................................................242
23.3
Starting a Conversion ....................................................................................244
23.4
Prescaling and Conversion Timing ................................................................245
23.5
Changing Channel or Reference Selection ...................................................248
23.6
ADC Noise Canceler .....................................................................................249
23.7
ADC Conversion Result .................................................................................254
23.8
Temperature Measurement ...........................................................................254
23.9
Register Description ......................................................................................256
24
debugWIRE On-chip Debug System .................................................. 261
24.1
Features ........................................................................................................261
24.2
Overview ........................................................................................................261
24.3
Physical Interface ..........................................................................................261
24.4
Software Break Points ...................................................................................262
24.5
Limitations of debugWIRE .............................................................................262
24.6
Register Description ......................................................................................262
25
Self-Programming the Flash, ATmega328P ...................................... 263
25.1
Overview ........................................................................................................263



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