ATMEGA32U4-16AU ATMEL [ATMEL Corporation], ATMEGA32U4-16AU Datasheet - Page 11

• Manufacturer Part Number: ATMEGA32U4-16AU
• Description: 8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

7766BS–AVR–07/08
0x3D (0x5D)
0x3C (0x5C)
0x2D (0x4D)
0x2C (0x4C)
0x1D (0x3D)
0x1C (0x3C)
0x3E (0x5E)
0x3B (0x5B)
0x3A (0x5A)
0x2E (0x4E)
0x2B (0x4B)
0x2A (0x4A)
0x1E (0x3E)
Address
0x3F (0x5F)
0x39 (0x59)
0x38 (0x58)
0x37 (0x57)
0x36 (0x56)
0x35 (0x55)
0x34 (0x54)
0x33 (0x53)
0x32 (0x52)
0x31 (0x51)
0x30 (0x50)
0x2F (0x4F)
0x29 (0x49)
0x28 (0x48)
0x27 (0x47)
0x26 (0x46)
0x25 (0x45)
0x24 (0x44)
0x23 (0x43)
0x22 (0x42)
0x21 (0x41)
0x20 (0x40)
0x1F (0x3F)
(0x7C)
(0x7B)
(0x7A)
(0x79)
(0x78)
(0x77)
(0x76)
(0x75)
(0x74)
(0x73)
(0x72)
(0x71)
(0x70)
(0x6F)
(0x6E)
(0x6D)
(0x6C)
(0x6B)
(0x6A)
(0x69)
(0x68)
(0x67)
(0x66)
(0x65)
(0x64)
(0x63)
(0x62)
(0x61)
(0x60)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
WDTCSR
Reserved
Reserved
Reserved
Reserved
SPMCSR
Reserved
Reserved
ADCSRB
ADCSRA
PCMSK0
RCCTRL
OSCCAL
TCCR0B
TCCR0A
PLLFRQ
PLLCSR
Name
ADMUX
TIMSK4
TIMSK3
TIMSK2
TIMSK1
TIMSK0
MCUCR
MCUSR
MONDR
GPIOR2
GPIOR1
GPIOR0
RAMPZ
OCR0B
OCR0A
GTCCR
EEARH
CLKPR
OCDR/
TCNT0
EEARL
EICRB
EICRA
PCICR
EIMSK
ADCH
SREG
SMCR
ADCL
PRR1
PRR0
ACSR
SPDR
SPSR
SPCR
EEDR
EECR
EIFR
SPH
SPL
CLKPCE
COM0A1
PINMUX
ADHSM
OCIE4D
PCINT7
PRUSB
OCDR7
REFS1
PRTWI
FOC0A
SPMIE
Bit 7
ADEN
ISC31
WDIF
SP15
SPIF
SPIE
ACD
TSM
SP7
JTD
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
I
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM0A0
RWWSB
PLLUSB
OCIE4A
PCINT6
PRTIM2
OCDR6
REFS0
FOC0B
WCOL
Bit 6
ACME
ADSC
ISC30
ACBG
INTF6
WDIE
SP14
SPE
INT6
SP6
T
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM0B1
PLLTM1
OCIE4B
PCINT5
PRTIM0
USBRF
OCDR5
EEPM1
ADLAR
ADATE
SIGRD
DORD
Bit 5
MUX5
ISC61
ISC21
WDP3
ICIE3
ICIE1
SP13
ACO
SP5
H
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Timer/Counter0 Output Compare Register B
Timer/Counter0 Output Compare Register A
EEPROM Address Register Low Byte
RC Oscillator Calibration Register
General Purpose I/O Register 2
General Purpose I/O Register 1
General Purpose I/O Register 0
ADC Data Register High byte
RWWSRE
ADC Data Register Low byte
COM0B0
PLLTM0
PCINT4
PRTIM4
OCDR4
PINDIV
EEPM0
Bit 4
WDCE
MUX4
ISC60
ISC20
MSTR
SP12
JTRF
ADIF
PUD
EEPROM Data Register
SP4
ACI
Timer/Counter0 (8 Bit)
Monitor Data Register
S
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SPI Data Register
OCIE3C
OCIE1C
PRTIM3
PRTIM1
CLKPS3
BLBSET
WGM02
PCINT3
OCDR3
ADTS3
Bit 3
WDRF
PDIV3
EERIE
MUX3
ISC11
CPOL
INTF3
ADIE
WDE
SP11
ACIE
INT3
SP3
SM2
V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ATmega16U4/ATmega32U4
EEPROM Address Register High Byte
CLKPS2
PGWRT
OCIE3B
OCIE2B
OCIE1B
OCIE0B
PCINT2
OCDR2
EEMPE
ADPS2
ADTS2
Bit 2
TOIE4
PRSPI
WDP2
PDIV2
MUX2
ISC10
BORF
CPHA
INTF2
CS02
SP10
ACIC
INT2
SP2
SM1
N
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RAMPZ1
PSRASY
CLKPS1
OCIE3A
OCIE2A
OCIE1A
OCIE0A
PCINT1
OCDR1
WGM01
PGERS
ADTS1
ADPS1
EXTRF
Bit 1
MUX1
ISC01
WDP1
IVSEL
PDIV1
ACIS1
INTF1
SPR1
EEPE
PLLE
CS01
INT1
SM0
SP9
SP1
Z
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PRUSART1
PSRSYNC
RCFREQ
RAMPZ0
CLKPS0
PCINT0
WGM00
PRADC
SPMEN
OCDR0
PLOCK
ADTS0
ADPS0
Bit 0
MUX0
TOIE3
TOIE2
TOIE1
TOIE0
ISC00
PCIE0
WDP0
PORF
PDIV0
ACIS0
SPI2X
INTF0
SPR0
EERE
CS00
IVCE
INT0
SP8
SP0
SE
C
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Page
11