Module avrd::atmega32u4 [] [src]

The AVR ATmega32U4 microcontroller

Variants

Pinout Package Operating temperature Operating voltage Max speed
ATmega32U4-AU TQFP44 TQFP44 -40°C - 85°C 2.7V - 5.5V 16 MHz
ATmega32U4RC-AU TQFP44 TQFP44 -40°C - 85°C 2.7V - 5.5V 16 MHz
ATmega32U4-MU QFN44 QFN44 -40°C - 85°C 2.7V - 5.5V 16 MHz
ATmega32U4RC-MU QFN44 QFN44 -40°C - 85°C 2.7V - 5.5V 16 MHz

Registers by module (not exhaustive)

PORT modules

  • PORTB
    • PB0 (PB0)
    • PB1 (PB1)
    • PB2 (PB2)
    • PB3 (PB3)
    • PB4 (PB4)
    • PB5 (PB5)
    • PB6 (PB6)
    • PB7 (PB7)
  • PORTC
    • PC6 (PC6)
    • PC7 (PC7)
  • PORTD
    • PD0 (PD0)
    • PD1 (PD1)
    • PD2 (PD2)
    • PD3 (PD3)
    • PD4 (PD4)
    • PD5 (PD5)
    • PD6 (PD6)
    • PD7 (PD7)
  • PORTE
    • PE2 (PE2)
    • PE6 (PE6)
  • PORTF
    • PF0 (PF0)
    • PF1 (PF1)
    • PF4 (PF4)
    • PF5 (PF5)
    • PF6 (PF6)

USART modules

  • USART1
    • PD3 (PD3)
    • PD2 (PD2)
    • PD5 (PD5)
    • PB7 (PB7)
    • PD5 (PD5)

EEPROM modules

  • EEPROM

JTAG modules

  • JTAG
    • PF4 (PF4)
    • PF5 (PF5)
    • PF6 (PF6)
    • PF7 (PF7)

ADC modules

  • ADC
    • PF0 (PF0)
    • PF1 (PF1)
    • PF4 (PF4)
    • PF5 (PF5)
    • PF6 (PF6)
    • PF7 (PF7)
    • PD4 (PD4)
    • PD6 (PD6)
    • PD7 (PD7)
    • PB4 (PB4)
    • PB5 (PB5)
    • PB6 (PB6)

Constants

ACSR

Analog Comparator Control And Status Register.

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.

CLKPR
CLKSEL0
CLKSEL1
CLKSTA
DDRB

Port B Data Direction Register.

DDRC

Port C Data Direction Register.

DDRD

Port D Data Direction Register.

DDRE

Data Direction Register, Port E.

DDRF

Data Direction Register, Port F.

DIDR0

Digital Input Disable Register 0.

DIDR1
DIDR2

Digital Input Disable Register 2.

DT4

Timer/Counter 4 Dead Time Value.

EEAR

EEPROM Address Register Low Bytes.

EEARH

EEPROM Address Register Low Bytes high byte.

EEARL

EEPROM Address Register Low Bytes low byte.

EECR

EEPROM Control Register.

EEDR

EEPROM Data Register.

EICRA

External Interrupt Control Register A.

EICRB

External Interrupt Control Register B.

EIFR

External Interrupt Flag Register.

EIMSK

External Interrupt Mask Register.

EIND

Extended Indirect Register.

EXTENDED
GPIOR0

General Purpose IO Register 0.

GPIOR1

General Purpose IO Register 1.

GPIOR2

General Purpose IO Register 2.

GTCCR

General Timer/Counter Control Register.

HIGH
ICR1

Timer/Counter1 Input Capture Register Bytes.

ICR3

Timer/Counter3 Input Capture Register Bytes.

ICR1H

Timer/Counter1 Input Capture Register Bytes high byte.

ICR1L

Timer/Counter1 Input Capture Register Bytes low byte.

ICR3H

Timer/Counter3 Input Capture Register Bytes high byte.

ICR3L

Timer/Counter3 Input Capture Register Bytes low byte.

LOCKBIT
LOW
MCUCR

MCU Control Register.

MCUSR

MCU Status Register.

OCDR

On-Chip Debug Related Register in I/O Memory.

OCR0A

Timer/Counter0 Output Compare Register.

OCR0B

Timer/Counter0 Output Compare Register.

OCR1A

Timer/Counter1 Output Compare Register A Bytes.

OCR1AH

Timer/Counter1 Output Compare Register A Bytes high byte.

OCR1AL

Timer/Counter1 Output Compare Register A Bytes low byte.

OCR1B

Timer/Counter1 Output Compare Register B Bytes.

OCR1BH

Timer/Counter1 Output Compare Register B Bytes high byte.

OCR1BL

Timer/Counter1 Output Compare Register B Bytes low byte.

OCR1C

Timer/Counter1 Output Compare Register C Bytes.

OCR1CH

Timer/Counter1 Output Compare Register C Bytes high byte.

OCR1CL

Timer/Counter1 Output Compare Register C Bytes low byte.

OCR3A

Timer/Counter3 Output Compare Register A Bytes.

OCR3AH

Timer/Counter3 Output Compare Register A Bytes high byte.

OCR3AL

Timer/Counter3 Output Compare Register A Bytes low byte.

OCR3B

Timer/Counter3 Output Compare Register B Bytes.

OCR3BH

Timer/Counter3 Output Compare Register B Bytes high byte.

OCR3BL

Timer/Counter3 Output Compare Register B Bytes low byte.

OCR3C

Timer/Counter3 Output Compare Register B Bytes.

OCR3CH

Timer/Counter3 Output Compare Register B Bytes high byte.

OCR3CL

Timer/Counter3 Output Compare Register B Bytes low byte.

OCR4A

Timer/Counter4 Output Compare Register A.

OCR4B

Timer/Counter4 Output Compare Register B.

OCR4C

Timer/Counter4 Output Compare Register C.

OCR4D

Timer/Counter4 Output Compare Register D.

OSCCAL

Oscillator Calibration Value.

PCICR

Pin Change Interrupt Control Register.

PCIFR

Pin Change Interrupt Flag Register.

PCMSK0

Pin Change Mask Register 0.

PINB

Port B Input Pins.

PINC

Port C Input Pins.

PIND

Port D Input Pins.

PINE

Input Pins, Port E.

PINF

Input Pins, Port F.

PLLCSR

PLL Status and Control register.

PLLFRQ

PLL Frequency Control Register.

PORTB

Port B Data Register.

PORTC

Port C Data Register.

PORTD

Port D Data Register.

PORTE

Data Register, Port E.

PORTF

Data Register, Port F.

PRR0

Power Reduction Register0.

PRR1

Power Reduction Register1.

RAMPZ

Extended Z-pointer Register for ELPM/SPM.

RCCTRL

Oscillator Control Register.

SMCR

Sleep Mode Control Register.

SP

Stack Pointer.

SPCR

SPI Control Register.

SPDR

SPI Data Register.

SPH

Stack Pointer high byte.

SPL

Stack Pointer low byte.

SPMCSR

Store Program Memory Control Register.

SPSR

SPI Status Register.

SREG

Status Register.

TC4H

Timer/Counter4.

TCCR0A

Timer/Counter Control Register A.

TCCR0B

Timer/Counter Control Register B.

TCCR1A

Timer/Counter1 Control Register A.

TCCR1B

Timer/Counter1 Control Register B.

TCCR1C

Timer/Counter 1 Control Register C.

TCCR3A

Timer/Counter3 Control Register A.

TCCR3B

Timer/Counter3 Control Register B.

TCCR3C

Timer/Counter 3 Control Register C.

TCCR4A

Timer/Counter4 Control Register A.

TCCR4B

Timer/Counter4 Control Register B.

TCCR4C

Timer/Counter 4 Control Register C.

TCCR4D

Timer/Counter 4 Control Register D.

TCCR4E

Timer/Counter 4 Control Register E.

TCNT0

Timer/Counter0.

TCNT1

Timer/Counter1 Bytes.

TCNT3

Timer/Counter3 Bytes.

TCNT4

Timer/Counter4 Low Bytes.

TCNT1H

Timer/Counter1 Bytes high byte.

TCNT1L

Timer/Counter1 Bytes low byte.

TCNT3H

Timer/Counter3 Bytes high byte.

TCNT3L

Timer/Counter3 Bytes low byte.

TIFR0

Timer/Counter0 Interrupt Flag register.

TIFR1

Timer/Counter1 Interrupt Flag register.

TIFR3

Timer/Counter3 Interrupt Flag register.

TIFR4

Timer/Counter4 Interrupt Flag register.

TIMSK0

Timer/Counter0 Interrupt Mask Register.

TIMSK1

Timer/Counter1 Interrupt Mask Register.

TIMSK3

Timer/Counter3 Interrupt Mask Register.

TIMSK4

Timer/Counter4 Interrupt Mask Register.

TWAMR

TWI (Slave) Address Mask Register.

TWAR

TWI (Slave) Address register.

TWBR

TWI Bit Rate register.

TWCR

TWI Control Register.

TWDR

TWI Data register.

TWSR

TWI Status Register.

UBRR1

USART Baud Rate Register Bytes.

UBRR1H

USART Baud Rate Register Bytes high byte.

UBRR1L

USART Baud Rate Register Bytes low byte.

UCSR1A

USART Control and Status Register A.

UCSR1B

USART Control and Status Register B.

UCSR1C

USART Control and Status Register C.

UCSR1D

USART Control and Status Register D.

UDADDR
UDCON
UDFNUM
UDFNUMH

high byte.

UDFNUML

low byte.

UDIEN
UDINT
UDMFN
UDR1

USART I/O Data Register.

UEBCHX
UEBCLX
UECFG0X
UECFG1X
UECONX
UEDATX
UEIENX
UEINT
UEINTX
UENUM
UERST
UESTA0X
UESTA1X
UHWCON
USBCON

USB General Control Register.

USBINT
USBSTA
WDTCSR

Watchdog Timer Control Register.