atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 360

• Manufacturer Part Number: atmega32c1
• Description: Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

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