Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
(0x7C)
ADMUX
ADCSRB
ADCSRA
ADCH
REFS1
REFS0
ACME
ADSC
ADLAR
MUX4
MUX3
MUX5
ADIE
MUX2
ADTS2
ADPS2
MUX1
ADTS1
ADPS1
MUX0
ADTS0
ADPS0
(0x7B)
-
-
-
(0x7A)
ADEN
ADATE
ADIF
(0x79)
ADC Data Register High byte
ADC Data Register Low byte
(0x78)
ADCL
(0x77)
Reserved
Reserved
XMCRB
XMCRA
TIMSK5
TIMSK4
TIMSK3
TIMSK2
TIMSK1
TIMSK0
Reserved
Reserved
PCMSK0
EICRB
-
-
-
-
-
-
-
-
(0x76)
-
-
-
-
-
-
-
-
(0x75)
XMBK
-
-
-
-
XMM2
SRW10
OCIE5B
OCIE4B
OCIE3B
OCIE2B
OCIE1B
OCIE0B
-
XMM1
SRW01
OCIE5A
OCIE4A
OCIE3A
OCIE2A
OCIE1A
OCIE0A
-
XMM0
SRW00
TOIE5
TOIE4
TOIE3
TOIE2
TOIE1
TOIE0
-
(0x74)
SRE
SRL2
SRL1
SRL0
SRW11
(0x73)
-
-
ICIE5
-
OCIE5C
(0x72)
-
-
ICIE4
-
OCIE4C
(0x71)
-
-
ICIE3
-
OCIE3C
(0x70)
-
-
-
-
-
(0x6F)
-
-
ICIE1
-
OCIE1C
(0x6E)
-
-
-
-
-
(0x6D)
-
-
-
-
-
(0x6C)
-
PCINT7
ISC71
ISC31
-
-
PCINT6
ISC70
ISC30
-
-
PCINT5
ISC61
ISC21
-
-
PCINT4
ISC60
ISC20
-
-
PCINT3
ISC51
ISC11
-
-
-
-
(0x6B)
PCINT2
ISC50
ISC10
-
PCINT1
ISC41
ISC01
-
PCINT0
ISC40
ISC00
PCIE0
-
(0x6A)
(0x69)
EICRA
(0x68)
PCICR
(0x67)
Reserved
OSCCAL
PRR1
-
-
-
-
-
-
-
(0x66)
Oscillator Calibration Register
(0x65)
PRUSB
-
-
-
PRTIM3
-
-
PRUSART1
(0x64)
PRR0
PRTWI
PRTIM2
PRTIM0
-
PRTIM1
PRSPI
-
PRADC
(0x63)
Reserved
Reserved
CLKPR
WDTCSR
SREG
-
-
-
-
-
-
-
-
(0x62)
-
-
-
-
-
-
-
-
(0x61)
CLKPCE
-
-
-
CLKPS3
CLKPS2
CLKPS1
CLKPS0
(0x60)
WDIF
WDIE
WDP3
WDCE
WDE
WDP2
WDP1
WDP0
0x3F (0x5F)
0x3E (0x5E)
0x3D (0x5D)
0x3C (0x5C)
0x3B (0x5B)
0x3A (0x5A)
0x39 (0x59)
0x38 (0x58)
0x37 (0x57)
0x36 (0x56)
0x35 (0x55)
0x34 (0x54)
0x33 (0x53)
0x32 (0x52)
I
T
H
S
V
N
Z
C
SPH
SP15
SP14
SP13
SP12
SP11
SP10
SP9
SP8
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
Reserved
RAMPZ
Reserved
Reserved
Reserved
SPMCSR
Reserved
MCUCR
MCUSR
SMCR
-
-
-
-
-
-
-
-
-
-
-
-
-
-
RAMPZ1
RAMPZ0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SPMEN
-
SPMIE
RWWSB
SIGRD
RWWSRE
BLBSET
PGWRT
PGERS
-
-
-
-
-
PUD
JTRF
-
-
-
-
-
JTD
-
-
IVSEL
EXTRF
SM0
-
IVCE
PORF
SE
-
-
-
WDRF
SM2
-
BORF
SM1
-
-
-
-
Reserved
-
-
-
-
-
OCDR/
MONDR
OCDR7
OCDR6
OCDR5
OCDR4
OCDR3
OCDR2
OCDR1
OCDR0
0x31 (0x51)
Monitor Data Register
0x30 (0x50)
0x2F (0x4F)
0x2E (0x4E)
0x2D (0x4D)
0x2C (0x4C)
0x2B (0x4B)
0x2A (0x4A)
0x29 (0x49)
0x28 (0x48)
0x27 (0x47)
0x26 (0x46)
0x25 (0x45)
0x24 (0x44)
0x23 (0x43)
0x22 (0x42)
0x21 (0x41)
0x20 (0x40)
0x1F (0x3F)
0x1E (0x3E)
0x1D (0x3D)
0x1C (0x3C)
ACSR
Reserved
SPDR
ACD
-
ACBG
-
ACO
-
ACI
-
ACIE
-
ACIC
-
ACIS1
-
ACIS0
-
SPI Data Register
-
SPSR
SPIF
SPIE
WCOL
SPE
-
-
-
-
SPI2X
SPR0
SPCR
DORD
MSTR
CPOL
CPHA
SPR1
GPIOR2
GPIOR1
PLLCSR
OCR0B
OCR0A
TCNT0
TCCR0B
TCCR0A
GTCCR
EEARH
EEARL
EEDR
General Purpose I/O Register 2
General Purpose I/O Register 1
-
-
-
PLLP2
PLLP1
PLLP0
PLLE
PLOCK
Timer/Counter0 Output Compare Register B
Timer/Counter0 Output Compare Register A
Timer/Counter0 (8 Bit)
FOC0A
COM0A1
TSM
FOC0B
-
-
WGM02
CS02
CS01
CS00
COM0A0
COM0B1
COM0B0
-
-
-
-
WGM01
PSRASY
WGM00
-
-
-
-
-
-
PSRSYNC
-
EEPROM Address Register High Byte
EEPROM Address Register Low Byte
EEPROM Data Register
EECR
-
-
EEPM1
EEPM0
EERIE
EEMPE
EEPE
EERE
GPIOR0
EIMSK
EIFR
General Purpose I/O Register 0
INT7
INT6
INT5
INT4
INT3
INT2
INT1
INT0
INTF7
INTF6
INTF5
INTF4
INTF3
INTF2
INTF1
INTF0
416
AT90USB64/128
7593A–AVR–02/06
ATMEL [ ATMEL ]
