TEP

AI Interactive Datasheet ATmega640

AVR · megaAVR

ATmega640 peripherals

Each block of the ATmega640: what it is, the registers that control it and the pins it uses.

CPU

CPU

CPU Registers

Registers

GPIOR00x3E GPIOR10x4A GPIOR20x4B SMCR0x53 MCUSR0x54 MCUCR0x55 EIND0x5C SP0x5D SREG0x5F CLKPR0x61 PRR00x64 PRR10x65 OSCCAL0x66 XMCRA0x74 XMCRB0x75

Pins

PORTA

PORT

I/O Port

Registers

PINA0x20 DDRA0x21 PORTA0x22

PORTB

PORT

I/O Port

Registers

PINB0x23 DDRB0x24 PORTB0x25

PORTC

PORT

I/O Port

Registers

PINC0x26 DDRC0x27 PORTC0x28

PORTD

PORT

I/O Port

Registers

PIND0x29 DDRD0x2A PORTD0x2B

PORTE

PORT

I/O Port

Registers

PINE0x2C DDRE0x2D PORTE0x2E

PORTF

PORT

I/O Port

Registers

PINF0x2F DDRF0x30 PORTF0x31

PORTG

PORT

I/O Port

Registers

PING0x32 DDRG0x33 PORTG0x34

PORTH

PORT

I/O Port

Registers

PINH0x100 DDRH0x101 PORTH0x102

PORTJ

PORT

I/O Port

Registers

PINJ0x103 DDRJ0x104 PORTJ0x105

PORTK

PORT

I/O Port

Registers

PINK0x106 DDRK0x107 PORTK0x108

PORTL

PORT

I/O Port

Registers

PINL0x109 DDRL0x10A PORTL0x10B

EXINT

EXINT

External Interrupts

Registers

PCIFR0x3B EIFR0x3C EIMSK0x3D PCICR0x68 EICRA0x69 EICRB0x6A PCMSK00x6B PCMSK10x6C PCMSK20x6D

Pins

TC0

TC8

Timer/Counter, 8-bit

Registers

TIFR00x35 GTCCR0x43 TCCR0A0x44 TCCR0B0x45 TCNT00x46 OCR0A0x47 OCR0B0x48 TIMSK00x6E

Pins

OC0APB7 T0PD7 OC0BPG5

TC1

TC16

Timer/Counter, 16-bit

Registers

TIFR10x36 TIMSK10x6F TCCR1A0x80 TCCR1B0x81 TCCR1C0x82 TCNT10x84 ICR10x86 OCR1A0x88 OCR1B0x8A OCR1C0x8C

Pins

OC1APB5 OC1BPB6 OC1CPB7 ICP1PD4 T1PD6

TC2

TC8_ASYNC

Timer/Counter, 8-bit Async

Registers

TIFR20x37 GTCCR0x43 TIMSK20x70 TCCR2A0xB0 TCCR2B0xB1 TCNT20xB2 OCR2A0xB3 OCR2B0xB4 ASSR0xB6

Pins

OC2APB4 TOSC2PG3 TOSC1PG4 OC2BPH6

TC3

TC16

Timer/Counter, 16-bit

Registers

TIFR30x38 TIMSK30x71 TCCR3A0x90 TCCR3B0x91 TCCR3C0x92 TCNT30x94 ICR30x96 OCR3A0x98 OCR3B0x9A OCR3C0x9C

Pins

OC3APE3 OC3BPE4 OC3CPE5 T3PE6 ICP3PE7

TC4

TC16

Timer/Counter, 16-bit

Registers

TIFR40x39 TIMSK40x72 TCCR4A0xA0 TCCR4B0xA1 TCCR4C0xA2 TCNT40xA4 ICR40xA6 OCR4A0xA8 OCR4B0xAA OCR4C0xAC

Pins

OC4APH3 OC4BPH4 OC4CPH5 T4PH7 ICP4PL0

TC5

TC16

Timer/Counter, 16-bit

Registers

TIFR50x3A TIMSK50x73 TCCR5A0x120 TCCR5B0x121 TCCR5C0x122 TCNT50x124 ICR50x126 OCR5A0x128 OCR5B0x12A OCR5C0x12C

Pins

ICP5PL1 T5PL2 OC5APL3 OC5BPL4 OC5CPL5

USART0

USART

USART

Registers

UCSR0A0xC0 UCSR0B0xC1 UCSR0C0xC2 UBRR00xC4 UDR00xC6

Pins

RXD0PE0 TXD0PE1 XCK0PE2

USART1

USART

USART

Registers

UCSR1A0xC8 UCSR1B0xC9 UCSR1C0xCA UBRR10xCC UDR10xCE

Pins

RXD1PD2 TXD1PD3 XCK1PD5

USART2

USART

USART

Registers

UCSR2A0xD0 UCSR2B0xD1 UCSR2C0xD2 UBRR20xD4 UDR20xD6

Pins

RXD2PH0 TXD2PH1 XCK2PH2

USART3

USART

USART

Registers

UCSR3A0x130 UCSR3B0x131 UCSR3C0x132 UBRR30x134 UDR30x136

Pins

RXD3PJ0 TXD3PJ1 XCK3PJ2

SPI

SPI

Serial Peripheral Interface

Registers

SPCR0x4C SPSR0x4D SPDR0x4E

Pins

SSPB0 SCKPB1 MOSIPB2 MISOPB3

TWI

TWI

Two Wire Serial Interface

Registers

TWBR0xB8 TWSR0xB9 TWAR0xBA TWDR0xBB TWCR0xBC TWAMR0xBD

Pins

ADC

ADC

Analog-to-Digital Converter

Registers

ADC0x78 ADCSRA0x7A ADCSRB0x7B ADMUX0x7C DIDR20x7D DIDR00x7E

Pins

ADC0PF0 ADC1PF1 ADC2PF2 ADC3PF3 ADC4PF4 ADC5PF5 ADC6PF6 ADC7PF7 ADC8PK0 ADC9PK1 ADC10PK2 ADC11PK3 ADC12PK4 ADC13PK5 ADC14PK6 ADC15PK7

AC

AC

Analog Comparator

Registers

ACSR0x50 ADCSRB0x7B DIDR10x7F

Pins

AIN0PE2 AIN1PE3

EEPROM

EEPROM

EEPROM

Registers

EECR0x3F EEDR0x40 EEAR0x41

WDT

WDT

Watchdog Timer

Registers

JTAG

JTAG

JTAG Interface

Registers

OCDR0x51 MCUSR0x54 MCUCR0x55

Pins

TCKPF4 TMSPF5 TDOPF6 TDIPF7