ATmega165 datasheet(332/336 Pages) ATMEL

332 / 336 page

ATmega165/V

2573G–AVR–07/09

Minimizing Power Consumption ......................................................................... 35

System Control and Reset ................................................................ 37

Internal Voltage Reference ................................................................................. 42

Watchdog Timer ................................................................................................. 43

Timed Sequences for Changing the Configuration of the Watchdog Timer ....... 45

Interrupts ............................................................................................ 46

Interrupt Vectors in ATmega165......................................................................... 46

External Interrupts ............................................................................. 51

Pin Change Interrupt Timing............................................................................... 51

I/O-Ports.............................................................................................. 55

Introduction ......................................................................................................... 55

Ports as General Digital I/O ................................................................................ 56

Alternate Port Functions ..................................................................................... 60

8-bit Timer/Counter0 with PWM........................................................ 75

Overview............................................................................................................. 75

Timer/Counter Clock Sources............................................................................. 76

Counter Unit........................................................................................................ 76

Output Compare Unit.......................................................................................... 77

Compare Match Output Unit ............................................................................... 79

Modes of Operation ............................................................................................ 80

Timer/Counter Timing Diagrams......................................................................... 84

8-bit Timer/Counter Register Description ........................................................... 85

Timer/Counter0 and Timer/Counter1 Prescalers ............................ 89

16-bit Timer/Counter1........................................................................ 91

Overview............................................................................................................. 91

Accessing 16-bit Registers ................................................................................. 94

Timer/Counter Clock Sources............................................................................. 97

Counter Unit........................................................................................................ 97

Input Capture Unit............................................................................................... 98

Output Compare Units ...................................................................................... 100

Compare Match Output Unit ............................................................................. 102

Modes of Operation .......................................................................................... 103

Timer/Counter Timing Diagrams....................................................................... 111

16-bit Timer/Counter Register Description ....................................................... 113

8-bit Timer/Counter2 with PWM and Asynchronous Operation .. 120

Overview........................................................................................................... 120

Timer/Counter Clock Sources........................................................................... 121

ATmega165 Datasheet(PDF) 332 Page - ATMEL Corporation