Datasheet

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ATmega32A [DATASHEET]
Atmel-8155D-AVR-ATmega32A-Datasheet_02/2014
9.8 External Clock .................................................................................................28
9.9 Timer/Counter Oscillator ..................................................................................29
9.10 Register Description ........................................................................................30
10 Power Management and Sleep Modes ................................................. 31
10.1 Sleep Modes ....................................................................................................31
10.2 Idle Mode .........................................................................................................31
10.3 ADC Noise Reduction Mode ............................................................................32
10.4 Power-down Mode ...........................................................................................32
10.5 Power-save Mode ............................................................................................32
10.6 Standby Mode .................................................................................................32
10.7 Extended Standby Mode .................................................................................33
10.8 Minimizing Power Consumption ......................................................................33
10.9 Register Description ........................................................................................35
11 System Control and Reset .....................................................................36
11.1 Resetting the AVR ...........................................................................................36
11.2 Reset Sources .................................................................................................36
11.3 Internal Voltage Reference ..............................................................................39
11.4 Watchdog Timer ..............................................................................................40
11.5 Register Description ........................................................................................41
12 Interrupts ................................................................................................. 43
12.1 Interrupt Vectors in ATmega32A .....................................................................43
12.2 Register Description ........................................................................................46
13 I/O Ports .................................................................................................. 48
13.1 Overview ..........................................................................................................48
13.2 Ports as General Digital I/O .............................................................................49
13.3 Alternate Port Functions ..................................................................................53
13.4 Register Description ........................................................................................62
14 External Interrupts .................................................................................65
14.1 Register Description ........................................................................................65
15 8-bit Timer/Counter0 with PWM ............................................................ 68
15.1 Features ..........................................................................................................68
15.2 Overview ..........................................................................................................68
15.3 Timer/Counter Clock Sources .........................................................................69
15.4 Counter Unit ....................................................................................................69
15.5 Output Compare Unit .......................................................................................70