ATMEGA48-15AZV Просмотр технического описания (PDF) - Atmel Corporation
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ATMEGA48-15AZV Datasheet PDF : 340 Pages
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6.9 Clock Output Buffer .........................................................................................33
6.10 Timer/Counter Oscillator ..................................................................................33
6.11 System Clock Prescaler ..................................................................................34
7 Power Management and Sleep Modes ................................................. 36
7.1 Idle Mode .........................................................................................................37
7.2 ADC Noise Reduction Mode ............................................................................37
7.3 Power-down Mode ...........................................................................................37
7.4 Power-save Mode ............................................................................................38
7.5 Standby Mode .................................................................................................38
7.6 Power Reduction Register ...............................................................................39
7.7 Minimizing Power Consumption ......................................................................40
8 System Control and Reset .................................................................... 41
8.1 Internal Voltage Reference ..............................................................................46
8.2 Watchdog Timer ..............................................................................................47
9 Interrupts ................................................................................................ 52
9.1 Interrupt Vectors in ATmega48 ........................................................................53
9.2 Interrupt Vectors in ATmega88 ........................................................................54
9.3 Interrupt Vectors in ATmega168 ......................................................................58
10 I/O-Ports .................................................................................................. 62
10.1 Introduction ......................................................................................................62
10.2 Ports as General Digital I/O .............................................................................63
10.3 Alternate Port Functions ..................................................................................68
10.4 Register Description for I/O Ports ....................................................................80
11 External Interrupts ................................................................................. 81
12 8-bit Timer/Counter0 with PWM ............................................................ 86
12.1 Overview ..........................................................................................................86
12.2 Timer/Counter Clock Sources .........................................................................87
12.3 Counter Unit ....................................................................................................87
12.4 Output Compare Unit .......................................................................................88
12.5 Compare Match Output Unit ............................................................................90
12.6 Modes of Operation .........................................................................................91
12.7 Timer/Counter Timing Diagrams .....................................................................95
12.8 8-bit Timer/Counter Register Description ........................................................97
334 Atmel ATmega48/88/168 Automotive
7530J–AVR–03/12
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