ATmega32A Datasheet - Sunrom Technologies

ATmega32A18.2 Overview ........................................................................................................13818.3 SS Pin Functionality ......................................................................................14318.4 Data Modes ...................................................................................................14519 USART ................................................................................................... 14719.1 Features ........................................................................................................14719.2 Overview ........................................................................................................14719.3 Clock Generation ...........................................................................................14919.4 Frame Formats ..............................................................................................15219.5 USART Initialization .......................................................................................15319.6 Data Transmission – The USART Transmitter ..............................................15419.7 Data Reception – The USART Receiver .......................................................15719.8 Asynchronous Data Reception ......................................................................16119.9 Multi-processor Communication Mode ..........................................................16419.10 Accessing UBRRH/ UCSRC Registers .........................................................16519.11 Register Description ......................................................................................16719.12 Examples of Baud Rate Setting .....................................................................17220 Two-wire Serial Interface ..................................................................... 17720.1 Features ........................................................................................................17720.2 Two-wire Serial Interface Bus Definition ........................................................17720.3 Data Transfer and Frame Format ..................................................................17820.4 Multi-master Bus Systems, Arbitration and Synchronization .........................18120.5 Overview of the TWI Module .........................................................................18220.6 Using the TWI ................................................................................................18520.7 Transmission Modes .....................................................................................18720.8 Multi-master Systems and Arbitration ............................................................20120.9 Register Description ......................................................................................20221 Analog Comparator ............................................................................. 20621.1 Overview ........................................................................................................20621.2 Analog Comparator Multiplexed Input ...........................................................20621.3 Register Description ......................................................................................20722 Analog to Digital Converter ................................................................ 20922.1 Features ........................................................................................................20922.2 Overview ........................................................................................................20922.3 Operation .......................................................................................................21022.4 Starting a Conversion ....................................................................................2118155C–AVR–02/11iv