ATmega16 datasheet(311/315 Pages) ATMEL

311 / 315 page

ATmega16(L)

2466E–AVR–10/02

System Control and Reset ................................................................. 34

Internal Voltage Reference ................................................................................. 39

Watchdog Timer ................................................................................................. 39

Interrupts ............................................................................................. 42

Interrupt Vectors in ATmega16........................................................................... 42

I/O Ports............................................................................................... 47

Introduction ......................................................................................................... 47

Ports as General Digital I/O ................................................................................ 48

Alternate Port Functions ..................................................................................... 52

External Interrupts .............................................................................. 64

8-bit Timer/Counter0 with PWM......................................................... 67

Overview............................................................................................................. 67

Timer/Counter Clock Sources............................................................................. 68

Counter Unit........................................................................................................ 68

Output Compare Unit.......................................................................................... 69

Compare Match Output Unit ............................................................................... 70

Modes of Operation ............................................................................................ 71

Timer/Counter Timing Diagrams......................................................................... 75

8-bit Timer/Counter Register Description ........................................................... 77

Timer/Counter0 and Timer/Counter1 Prescalers ............................. 81

16-bit Timer/Counter1......................................................................... 83

Overview............................................................................................................. 83

Accessing 16-bit Registers ................................................................................. 86

Timer/Counter Clock Sources............................................................................. 88

Counter Unit........................................................................................................ 88

Input Capture Unit............................................................................................... 90

Output Compare Units ........................................................................................ 91

Compare Match Output Unit ............................................................................... 93

Modes of Operation ............................................................................................ 94

Timer/Counter Timing Diagrams....................................................................... 102

16-bit Timer/Counter Register Description ....................................................... 104

8-bit Timer/Counter2 with PWM and Asynchronous Operation ... 111

Overview........................................................................................................... 111

Timer/Counter Clock Sources........................................................................... 112

Counter Unit...................................................................................................... 112

Output Compare Unit........................................................................................ 113

Compare Match Output Unit ............................................................................. 114

Modes of Operation .......................................................................................... 115

ATMEGA16 Datasheet(PDF) 311 Page - ATMEL Corporation