Module avrd::attiny20

The AVR ATtiny20 microcontroller

Variants

	Pinout	Package	Operating temperature	Operating voltage	Max speed
ATtiny20-UUR	WLCSP	WLCSP12	-40°C - 85°C	1.8V - 5.5V	12 MHz
ATtiny20-SSU	DIP	SOIC14	-40°C - 85°C	1.8V - 5.5V	12 MHz
ATtiny20-XU	DIP	TSSOP14	-40°C - 85°C	1.8V - 5.5V	12 MHz
ATtiny20-CCU	UFBGA	UFBGA15	-40°C - 85°C	1.8V - 5.5V	12 MHz
ATtiny20-MMH	VQFN	VQFN20	-40°C - 85°C	1.8V - 5.5V	12 MHz

Registers by module (not exhaustive)

PORT modules

• PORTB
  • PB0 (PB0)
  • PB1 (PB1)
  • PB2 (PB2)
  • PB3 (PB3)
• PORTA
  • PA0 (PA0)
  • PA1 (PA1)
  • PA2 (PA2)
  • PA3 (PA3)
  • PA4 (PA4)
  • PA5 (PA5)
  • PA6 (PA6)
  • PA7 (PA7)

ADC modules

• ADC
  • PA0 (PA0)
  • PA1 (PA1)
  • PA2 (PA2)
  • PA3 (PA3)
  • PA4 (PA4)
  • PA5 (PA5)
  • PA6 (PA6)
  • PA7 (PA7)

Constants

ACSRA	Analog Comparator Control And Status Register A.
ACSRB	Analog Comparator Control And Status Register B.
ADC	ADC Data Register Bytes.
ADCH	ADC Data Register Bytes high byte.
ADCL	ADC Data Register Bytes low byte.
ADCSRA	The ADC Control and Status register.
ADCSRB	ADC Control and Status Register B.
ADMUX	The ADC multiplexer Selection Register.
BYTE0
CCP	Configuration Change Protection.
CLKMSR	Clock Main Settings Register.
CLKPSR	Clock Prescale Register.
DDRA	Data Direction Register, Port A.
DDRB	Data Direction Register, Port B.
DIDR0	Digital Input Disable Register 0.
GIFR	General Interrupt Flag Register.
GIMSK	General Interrupt Mask Register.
GTCCR	General Timer/Counter Control Register.
ICR1	Input Capture Register Bytes.
ICR1H	Input Capture Register Bytes high byte.
ICR1L	Input Capture Register Bytes low byte.
LOCKBIT
MCUCR	MCU Control Register.
NVMCMD	Non-Volatile Memory Command.
NVMCSR	Non-Volatile Memory Control and Status Register.
OCR0A	Timer/Counter0 Output Compare Register.
OCR0B	Timer/Counter0 Output Compare Register.
OCR1A	Timer/Counter 1 Output Compare Register A.
OCR1AH	Timer/Counter 1 Output Compare Register A high byte.
OCR1AL	Timer/Counter 1 Output Compare Register A low byte.
OCR1B	Timer/Counter1 Output Compare Register B.
OCR1BH	Timer/Counter1 Output Compare Register B high byte.
OCR1BL	Timer/Counter1 Output Compare Register B low byte.
OSCCAL	Oscillator Calibration Value.
PCMSK0	Pin Change Mask Register 0.
PCMSK1	Pin Change Mask Register 1.
PINA	Port A Input Pins.
PINB	Port B Data register.
PORTA	Port A Data Register.
PORTB	Input Pins, Port B.
PORTCR	Port Control Register.
PRR	Power Reduction Register.
PUEA	Pull-up Enable Control Register.
PUEB	Pull-up Enable Control Register.
RSTFLR	Reset Flag Register.
SP	Stack Pointer.
SPCR	SPI Control Register.
SPDR	SPI Data Register.
SPH	Stack Pointer high byte.
SPL	Stack Pointer low byte.
SPSR	SPI Status Register.
SREG	Status Register.
TCCR0A	Timer/Counter 0 Control Register A.
TCCR0B	Timer/Counter 0 Control Register B.
TCCR1A	Timer/Counter1 Control Register A.
TCCR1B	Timer/Counter1 Control Register B.
TCCR1C	Timer/Counter1 Control Register C.
TCNT0	Timer/Counter0.
TCNT1	Timer/Counter1.
TCNT1H	Timer/Counter1 high byte.
TCNT1L	Timer/Counter1 low byte.
TIFR	Overflow Interrupt Enable.
TIMSK	Timer Interrupt Mask Register.
TWSA	TWI Slave Address Register.
TWSAM	TWI Slave Address Mask Register.
TWSCRA	TWI Slave Control Register A.
TWSCRB	TWI Slave Control Register B.
TWSD	TWI Slave Data Register.
TWSSRA	TWI Slave Status Register A.
WDTCSR	Watchdog Timer Control and Status Register.