344
8023F–AVR–07/09
ATmega325P/3250P
(0x85)
TCNT1H
Timer/Counter1 High
(0x84)
TCNT1L
Timer/Counter1 Low
(0x83)
Reserved
-
(0x82)
TCCR1C
FOC1A
FOC1B
-
(0x81)
TCCR1B
ICNC1
ICES1
-
WGM13
WGM12
CS12CS11CS10
(0x80)
TCCR1A
COM1A1
COM1A0
COM1B1
COM1B0
-
-WGM11
WGM10
(0x7F)
DIDR1
-
AIN1D
AIN0D
(0x7E)
DIDR0
ADC7D
ADC6D
ADC5D
ADC4D
ADC3D
ADC2D
ADC1D
ADC0D
(0x7D)
Reserved
-
(0x7C)
ADMUX
REFS1
REFS0
ADLAR
MUX4
MUX3
MUX2
MUX1
MUX0
(0x7B)
ADCSRB
-ACME
-
ADTS2
ADTS1
ADTS0
(0x7A)
ADCSRA
ADEN
ADSC
ADATE
ADIF
ADIE
ADPS2
ADPS1
ADPS0
(0x79)
ADCH
ADC Data Register High
(0x78)
ADCL
ADC Data Register Low
(0x77)
Reserved
-
(0x76)
Reserved
-
(0x75)
Reserved
-
(0x74)
Reserved
-
(0x73)
PCMSK3
-
PCINT30
PCINT29
PCINT28
PCINT27
PCINT26
PCINT25
PCINT24
(0x72)
Reserved
-
(0x71)
Reserved
-
(0x70)
TIMSK2
-
OCIE2A
TOIE2
(0x6F)
TIMSK1
-
-ICIE1
-
OCIE1B
OCIE1A
TOIE1
(0x6E)
TIMSK0
-
OCIE0A
TOIE0
(0x6D)
PCMSK2
PCINT23
PCINT22
PCINT21
PCINT20
PCINT19
PCINT18
PCINT17
PCINT16
(0x6C)
PCMSK1
PCINT15
PCINT14
PCINT13
PCINT12
PCINT11
PCINT10
PCINT9
PCINT8
(0x6B)
PCMSK0
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
(0x6A)
Reserved
-
(0x69)
EICRA
-
-ISC01
ISC00
(0x68)
Reserved
-
(0x67)
Reserved
-
(0x66)
OSCCAL
Oscillator Calibration Register [CAL7..0]
(0x65)
Reserved
-
(0x64)
PRR
-
PRTIM1
PRSPI
PSUSART0
PRADC
(0x63)
Reserved
-
(0x62)
Reserved
-
(0x61)
CLKPR
CLKPCE
-
CLKPS3
CLKPS2
CLKPS1
CLKPS0
(0x60)
WDTCR
-
WDCE
WDE
WDP2
WDP1
WDP0
0x3F (0x5F)
SREG
I
T
H
S
V
N
Z
C
0x3E (0x5E)
SPH
Stack Pointer High
0x3D (0x5D)
SPL
Stack Pointer Low
0x3C (0x5C)
Reserved
-
0x3B (0x5B)
Reserved
-
0x3A (0x5A)
Reserved
-
0x39 (0x59)
Reserved
-
0x38 (0x58)
Reserved
-
0x37 (0x57)
SPMCSR
SPMIE
RWWSB
-
RWWSRE
BLBSET
PGWRT
PGERS
SPMEN
0x36 (0x56)
Reserved
0x35 (0x55)
MCUCR
JTD
BODS
BODSE
PUD
-
IVSEL
IVCE
0x34 (0x54)
MCUSR
-
JTRF
WDRF
BORF
EXTRF
PORF
0x33 (0x53)
SMCR
-
SM2
SM1
SM0
SE
0x32 (0x52)
Reserved
-
0x31 (0x51)
OCDR
IDRD/OCDR7
OCDR6
OCDR5
OCDR4
OCDR3
OCDR2
OCDR1
OCDR0
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
0x2A (0x4A)
GPIOR1
General Purpose I/O Register
0x29 (0x49)
Reserved
-
0x28 (0x48)
Reserved
-
0x27 (0x47)
OCR0A
Timer/Counter0 Output Compare A
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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