Rainbow-electronics ATmega64C1 Instrukcja Użytkownika Strona 360

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360
7647A–AVR–02/08
ATmega32/64/M1/C1
6 Power Management and Sleep Modes ................................................. 39
6.1 Sleep Mode Control Register ..........................................................................39
6.2 Idle Mode .........................................................................................................40
6.3 ADC Noise Reduction Mode ............................................................................40
6.4 Power-down Mode ...........................................................................................40
6.5 Standby Mode .................................................................................................40
6.6 Power Reduction Register ...............................................................................41
6.7 Minimizing Power Consumption ......................................................................42
7 System Control and Reset .................................................................... 44
7.1 Resetting the AVR ...........................................................................................44
7.2 Reset Sources .................................................................................................44
7.3 Internal Voltage Reference ..............................................................................49
7.4 Watchdog Timer ..............................................................................................50
8 Interrupts ................................................................................................ 55
8.1 Interrupt Vectors in ATmega32/64M1 ..............................................................55
9 I/O-Ports .................................................................................................. 60
9.1 Introduction ......................................................................................................60
9.2 Ports as General Digital I/O .............................................................................61
9.3 Alternate Port Functions ..................................................................................65
9.4 Register Description for I/O-Ports ....................................................................79
10 External Interrupts ................................................................................. 81
10.1 Pin Change Interrupt Timing ............................................................................81
10.2 External Interrupt Control Register A – EICRA ................................................82
11 Timer/Counter0 and Timer/Counter1 Prescalers ................................ 86
11.1 Internal Clock Source ......................................................................................86
11.2 Prescaler Reset ...............................................................................................86
11.3 External Clock Source .....................................................................................86
12 8-bit Timer/Counter0 with PWM ............................................................ 89
12.1 Overview ..........................................................................................................89
12.2 Timer/Counter Clock Sources .........................................................................90
12.3 Counter Unit ....................................................................................................90
12.4 Output Compare Unit .......................................................................................91
12.5 Compare Match Output Unit ............................................................................93
12.6 Modes of Operation .........................................................................................94
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