ATmega16 datasheet(312/315 Pages) ATMEL

312 / 315 page

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ATmega16(L)

2466E–AVR–10/02

Timer/Counter Timing Diagrams....................................................................... 119

8-bit Timer/Counter Register Description ......................................................... 121

Asynchronous Operation of the Timer/Counter ................................................ 124

Timer/Counter Prescaler................................................................................... 127

Serial Peripheral Interface – SPI...................................................... 129

SS Pin Functionality.......................................................................................... 132

Data Modes ...................................................................................................... 135

USART ............................................................................................... 137

Overview........................................................................................................... 137

Clock Generation .............................................................................................. 138

Frame Formats ................................................................................................. 141

USART Initialization.......................................................................................... 143

Data Transmission – The USART Transmitter ................................................. 144

Data Reception – The USART Receiver .......................................................... 147

Asynchronous Data Reception ......................................................................... 150

Multi-processor Communication Mode ............................................................. 154

Accessing UBRRH/ UCSRC Registers............................................................. 155

USART Register Description ............................................................................ 156

Examples of Baud Rate Setting........................................................................ 162

Two-wire Serial Interface ................................................................. 166

Features............................................................................................................ 166

Two-wire Serial Interface Bus Definition........................................................... 166

Data Transfer and Frame Format ..................................................................... 167

Multi-master Bus Systems, Arbitration and Synchronization ............................ 169

Overview of the TWI Module ............................................................................ 172

TWI register description.................................................................................... 174

Using the TWI ................................................................................................... 177

Transmission Modes......................................................................................... 180

Multi-master Systems and Arbitration............................................................... 193

Analog Comparator .......................................................................... 195

Analog Comparator Multiplexed Input .............................................................. 197

Analog to Digital Converter ............................................................. 198

Features............................................................................................................ 198

Operation .......................................................................................................... 199

Starting a Conversion ....................................................................................... 200

Prescaling and Conversion Timing ................................................................... 201

Changing Channel or Reference Selection ...................................................... 204

ADC Noise Canceler......................................................................................... 206

ADC Conversion Result.................................................................................... 210

ATMEGA16 Datasheet(PDF) 312 Page - ATMEL Corporation

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