CPU
CPUCPU Registers
ATmega128A peripherals
Each block of the ATmega128A: what it is, the registers that control it and the pins it uses.
PORTA
PORTI/O Port
Registers
PORTB
PORTI/O Port
Registers
PORTC
PORTI/O Port
Registers
PORTD
PORTI/O Port
Registers
PORTE
PORTI/O Port
Registers
PORTF
PORTI/O Port
Registers
PORTG
PORTI/O Port
Registers
EXINT
EXINTExternal Interrupts
Registers
Pins
TC0
TC8_ASYNCTimer/Counter, 8-bit Async
Registers
Pins
TC1
TC16Timer/Counter, 16-bit
Registers
SFIOR0x40ICR10x46OCR1B0x48OCR1A0x4ATCNT10x4CTCCR1B0x4ETCCR1A0x4FTIFR0x56TIMSK0x57OCR1C0x78TCCR1C0x7AETIFR0x7CETIMSK0x7D
Pins
TC2
TC8Timer/Counter, 8-bit
Registers
Pins
TC3
TC16Timer/Counter, 16-bit
Registers
SFIOR0x40ETIFR0x7CETIMSK0x7DICR30x80OCR3C0x82OCR3B0x84OCR3A0x86TCNT30x88TCCR3B0x8ATCCR3A0x8BTCCR3C0x8C
Pins
USART0
USARTUSART
Registers
Pins
USART1
USARTUSART
Registers
Pins
SPI
SPISerial Peripheral Interface
Registers
Pins
TWI
TWITwo Wire Serial Interface
Registers
Pins
ADC
ADCAnalog-to-Digital Converter
Registers
Pins
AC
ACAnalog Comparator
Registers
Pins
EEPROM
EEPROMEEPROM
Registers
WDT
WDTWatchdog Timer
Registers
JTAG
JTAGJTAG Interface
Registers
Pins
MISC
MISCOther Registers