ATMEGA64L-8MI View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA64L-8MI

8-bit AVR® Microcontroller with 64K Bytes In-System Programmable Flash

Atmel Corporation 

2490G–AVR–03/04

ATmega64(L)

8-bit Timer/Counter2 with PWM...................................................... 144

Overview........................................................................................................... 144

Timer/Counter Clock Sources........................................................................... 145

Counter Unit...................................................................................................... 146

Output Compare Unit........................................................................................ 146

Compare Match Output Unit ............................................................................. 148

Modes of Operation .......................................................................................... 149

Timer/Counter Timing Diagrams....................................................................... 153

8-bit Timer/Counter Register Description ......................................................... 155

Output Compare Modulator (OCM1C2).......................................... 159

Overview........................................................................................................... 159

Description........................................................................................................ 159

Serial Peripheral Interface – SPI..................................................... 161

SS Pin Functionality.......................................................................................... 165

Data Modes ...................................................................................................... 168

USART .............................................................................................. 169

Overview........................................................................................................... 169

Clock Generation .............................................................................................. 170

Frame Formats ................................................................................................. 173

USART Initialization.......................................................................................... 174

Data Transmission – The USART Transmitter ................................................. 175

Data Reception – The USART Receiver .......................................................... 179

Asynchronous Data Reception ......................................................................... 182

Multi-processor Communication Mode ............................................................. 185

USART Register Description ............................................................................ 186

Examples of Baud Rate Setting........................................................................ 191

Two-wire Serial Interface ................................................................ 196

Features............................................................................................................ 196

Two-wire Serial Interface Bus Definition........................................................... 196

Data Transfer and Frame Format ..................................................................... 197

Multi-master Bus Systems, Arbitration and Synchronization ............................ 200

Overview of the TWI Module ............................................................................ 202

TWI Register Description.................................................................................. 205

Using the TWI ................................................................................................... 208

Transmission Modes......................................................................................... 212

Multi-master Systems and Arbitration............................................................... 225

Analog Comparator ......................................................................... 227

Analog Comparator Multiplexed Input .............................................................. 229

Analog to Digital Converter ............................................................ 230

Features............................................................................................................ 230

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