Datasheet

416
ATmega16U4/32U4 [DATASHEET SUMMARY]
Atmel-7766J-USB-ATmega16U4/32U4-Datasheet_04/2016
(0x7A) ADCSRA ADEN ADSC ADATE ADIF ADIE ADPS2 ADPS1 ADPS0
(0x79) ADCH ADC Data Register High byte
(0x78) ADCL ADC Data Register Low byte
(0x77) Reserved
- - - - - - - -
(0x76) Reserved
- - - - - - - -
(0x75) Reserved
- - - - - - - -
(0x74) Reserved
- - - - - - - -
(0x73) Reserved
- - - - - - - -
(0x72) TIMSK4 OCIE4D OCIE4A OCIE4B - - TOIE4 - -
(0x71) TIMSK3
- - ICIE3 - OCIE3C OCIE3B OCIE3A TOIE3
(0x70) Reserved
- - - - - - - -
(0x6F) TIMSK1
- - ICIE1 - OCIE1C OCIE1B OCIE1A TOIE1
(0x6E) TIMSK0
- - - - - OCIE0B OCIE0A TOIE0
(0x6D) Reserved
- - - - - - - -
(0x6C) Reserved
- - - - - - - -
(0x6B) PCMSK0 PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0
(0x6A) EICRB
- -ISC61ISC60- - - -
(0x69) EICRA ISC31 ISC30 ISC21 ISC20 ISC11 ISC10 ISC01 ISC00
(0x68) PCICR
- - - - - - -PCIE0
(0x67) RCCTRL
- - - - - - - RCFREQ
(0x66) OSCCAL RC Oscillator Calibration Register
(0x65) PRR1
PRUSB - - PRTIM4 PRTIM3 - - PRUSART1
(0x64) PRR0
PRTWI - PRTIM0 - PRTIM1 PRSPI - PRADC
(0x63) Reserved
- - - - - - - -
(0x62) Reserved
- - - - - - - -
(0x61) CLKPR CLKPCE
- - - CLKPS3 CLKPS2 CLKPS1 CLKPS0
(0x60) WDTCSR WDIF
WDIE WDP3 WDCE WDE WDP2 WDP1 WDP0
0x3F (0x5F) SREG I T H S V N Z C
0x3E (0x5E) SPH SP15 SP14 SP13 SP12 SP11 SP10 SP9 SP8
0x3D (0x5D) SPL SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0x3C (0x5C) Reserved
- - - - - - - -
0x3B (0x5B) RAMPZ
- - - - - - RAMPZ1 RAMPZ0
0x3A (0x5A) Reserved
- - - - - - - -
0x39 (0x59) Reserved
- - - - - - - -
0x38 (0x58) Reserved
- - - - - - - -
0x37 (0x57) SPMCSR SPMIE RWWSB SIGRD RWWSRE BLBSET PGWRT PGERS SPMEN
0x36 (0x56) Reserved
- - - - - - - -
0x35 (0x55) MCUCR
JTD - - PUD - - IVSEL IVCE
0x34 (0x54) MCUSR
- - USBRF JTRF WDRF BORF EXTRF PORF
0x33 (0x53) SMCR
- - - - SM2 SM1 SM0 SE
0x32 (0x52) PLLFRQ PINMUX PLLUSB PLLTM1 PLLTM0 PDIV3 PDIV2 PDIV1 PDIV0
0x31 (0x51)
OCDR/
MONDR
OCDR7
OCDR6 OCDR5 OCDR4 OCDR3 OCDR2 OCDR1 OCDR0
Monitor Data Register
0x30 (0x50) ACSR ACD ACBG ACO ACI ACIE ACIC ACIS1 ACIS0
0x2F (0x4F) Reserved
- - - - - - - -
0x2E (0x4E) SPDR SPI Data Register
0x2D (0x4D) SPSR SPIF WCOL
- - - - -SPI2X
0x2C (0x4C) SPCR SPIE SPE DORD MSTR CPOL CPHA SPR1 SPR0
0x2B (0x4B) GPIOR2 General Purpose I/O Register 2
0x2A (0x4A) GPIOR1 General Purpose I/O Register 1
0x29 (0x49) PLLCSR
- - - PINDIV - - PLLE PLOCK
0x28 (0x48) OCR0B Timer/Counter0 Output Compare Register B
0x27 (0x47) OCR0A Timer/Counter0 Output Compare Register A
0x26 (0x46) TCNT0 Timer/Counter0 (8 Bit)
0x25 (0x45) TCCR0B
FOC0A FOC0B - - WGM02 CS02 CS01 CS00
0x24 (0x44) TCCR0A
COM0A1 COM0A0 COM0B1 COM0B0 - -WGM01WGM00
0x23 (0x43) GTCCR
TSM - - - - - PSRASY PSRSYNC
0x22 (0x42) EEARH
- - - -
EEPROM Address Register High Byte
0x21 (0x41) EEARL EEPROM Address Register Low Byte
0x20 (0x40) EEDR EEPROM Data Register
0x1F (0x3F) EECR
- - EEPM1 EEPM0 EERIE EEMPE EEPE EERE
0x1E (0x3E) GPIOR0
General Purpose I/O Register 0
0x1D (0x3D) EIMSK
- INT6 - - INT3 INT2 INT1 INT0
0x1C (0x3C) EIFR
- INTF6 - - INTF3 INTF2 INTF1 INTF0
0x1B (0x3B) PCIFR
- - - - - - -PCIF0
0x1A (0x3A) Reserved
- - - - - - - -
0x19 (0x39) TIFR4 OCF4D OCF4A OCF4B
- -TOV4 - -
0x18 (0x38) TIFR3
- - ICF3 - OCF3C OCF3B OCF3A TOV3
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page