CPU
CPUCPU Registers
ATmega8U2 peripherals
Each block of the ATmega8U2: what it is, the registers that control it and the pins it uses.
PORTB
PORTI/O Port
Registers
PORTC
PORTI/O Port
Registers
PORTD
PORTI/O Port
Registers
EXINT
EXINTExternal Interrupts
Registers
Pins
TC0
TC8Timer/Counter, 8-bit
Registers
Pins
TC1
TC16Timer/Counter, 16-bit
Registers
Pins
USART1
USARTUSART
Registers
Pins
SPI
SPISerial Peripheral Interface
Registers
Pins
AC
ACAnalog Comparator
Registers
Pins
EEPROM
EEPROMEEPROM
Registers
WDT
WDTWatchdog Timer
Registers
PLL
PLLPhase Locked Loop
Registers
USB_DEVICE
USB_DEVICEUSB Device Registers