CPU
CPUCPU Registers
ATtiny40 peripherals
Each block of the ATtiny40: 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
EXINT
EXINTExternal Interrupts
Registers
Pins
TC0
TC8Timer/Counter, 8-bit
Registers
OCR0B0x15OCR0A0x16TCNT00x17TCCR0B0x18TCCR0A0x19OCR1B0x21OCR1A0x22TCNT1L0x23TCCR1A0x24TIFR0x25TIMSK0x26TCNT1H0x27
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
WDT
WDTWatchdog Timer