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10
8019KS–AVR–11/10
ATmega165P
(0x7D)
Reserved
–
(0x7C)
ADMUX
REFS1
REFS0
ADLAR
MUX4
MUX3
MUX2
MUX1
MUX0
217
(0x7B)
ADCSRB
–ACME
–
ADTS2
ADTS1
ADTS0
202, 221
(0x7A)
ADCSRA
ADEN
ADSC
ADATE
ADIF
ADIE
ADPS2
ADPS1
ADPS0
219
(0x79)
ADCH
ADC Data Register High byte
220
(0x78)
ADCL
ADC Data Register Low byte
220
(0x77)
Reserved
–
(0x76)
Reserved
–
(0x75)
Reserved
–
(0x74)
Reserved
–
(0x73)
Reserved
–
(0x72)
Reserved
–
(0x71)
Reserved
–
(0x70)
TIMSK2
–
OCIE2A
TOIE2
146
(0x6F)
TIMSK1
–
–ICIE1
–
OCIE1B
OCIE1A
TOIE1
124
(0x6E)
TIMSK0
–
OCIE0A
TOIE0
96
(0x6D)
Reserved
–
(0x6C)
PCMSK1
PCINT15
PCINT14
PCINT13
PCINT12
PCINT11
PCINT10
PCINT9
PCINT8
59
(0x6B)
PCMSK0
PCINT7
PCINT6
PCINT5
PCINT4
PCINT3
PCINT2
PCINT1
PCINT0
60
(0x6A)
Reserved
–
(0x69)
EICRA
–
–ISC01
ISC00
58
(0x68)
Reserved
–
(0x67)
Reserved
–
(0x66)
OSCCAL
Oscillator Calibration Register
34
(0x65)
Reserved
–
(0x64)
PRR
–
PRTIM1
PRSPI
PRUSART0
PRADC
41
(0x63)
Reserved
–
(0x62)
Reserved
–
(0x61)
CLKPR
CLKPCE
–
CLKPS3
CLKPS2
CLKPS1
CLKPS0
34
(0x60)
WDTCR
–
WDCE
WDE
WDP2
WDP1
WDP0
50
0x3F (0x5F)
SREG
I
T
H
S
V
N
Z
C
14
0x3E (0x5E)
SPH
–
SP10
SP9
SP8
10
0x3D (0x5D)
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
10
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
264
0x36 (0x56)
Reserved
–
0x35 (0x55)
MCUCR
JTD
–
–PUD
–
IVSEL
IVCE
56, 79, 249
0x34 (0x54)
MCUSR
–
JTRF
WDRF
BORF
EXTRF
PORF
249
0x33 (0x53)
SMCR
–
–SM2
SM1
SM0
SE
41
0x32 (0x52)
Reserved
–
0x31 (0x51)
OCDR
IDRD/OCD
OCDR6
OCDR5
OCDR4
OCDR3
OCDR2
OCDR1
OCDR0
228
0x30 (0x50)
ACSR
ACD
ACBG
ACO
ACI
ACIE
ACIC
ACIS1
ACIS0
202
0x2F (0x4F)
Reserved
–
0x2E (0x4E)
SPDR
SPI Data Register
157
0x2D (0x4D)
SPSR
SPIF
WCOL
–
SPI2X
156
0x2C (0x4C)
SPCR
SPIE
SPE
DORD
MSTR
CPOL
CPHA
SPR1
SPR0
155
0x2B (0x4B)
GPIOR2
General Purpose I/O Register 2
25
0x2A (0x4A)
GPIOR1
General Purpose I/O Register 1
25
0x29 (0x49)
Reserved
–
0x28 (0x48)
Reserved
–
0x27 (0x47)
OCR0A
Timer/Counter0 Output Compare Register A
95
0x26 (0x46)
TCNT0
Timer/Counter0 (8 Bit)
95
0x25 (0x45)
Reserved
–
0x24 (0x44)
TCCR0A
FOC0A
WGM00
COM0A1
COM0A0
WGM01
CS02
CS01
CS00
93
0x23 (0x43)
GTCCR
TSM
–
PSR2
PSR10
128, 147
0x22 (0x42)
EEARH
–
–EEAR8
24
0x21 (0x41)
EEARL
EEPROM Address Register Low Byte
24
0x20 (0x40)
EEDR
EEPROM Data Register
24
0x1F (0x3F)
EECR
–
EERIE
EEMWE
EEWE
EERE
24
0x1E (0x3E)
GPIOR0
General Purpose I/O Register 0
25
0x1D (0x3D)
EIMSK
PCIE1
PCIE0
–
–INT0
58
0x1C (0x3C)
EIFR
PCIF1
PCIF0
–
INTF0
59
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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