279
8008H–AVR–04/11
ATtiny48/88
(0x7C)
ADMUX
–
REFS0
ADLAR
–
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 byte
(0x78)
ADCL
ADC Data Register Low byte
(0x77)
Reserved
–
(0x76)
Reserved
–
(0x75)
Reserved
–
(0x74)
Reserved
–
(0x73)
Reserved
–
(0x72)
Reserved
–
(0x71)
Reserved
–
(0x70)
Reserved
–
(0x6F)
TIMSK1
–
–ICIE1
–
OCIE1B
OCIE1A
TOIE1
(0x6E)
TIMSK0
–
OCIE0B
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)
PCMSK3
–
-
PCINT27
PCINT26
PCINT25
PCINT24
(0x69)
EICRA
–
–ISC11
ISC10
ISC01
ISC00
(0x68)
PCICR
–
PCIE3
PCIE2
PCIE1
PCIE0
(0x67)
Reserved
–
(0x66)
OSCCAL
Oscillator Calibration Register
(0x65)
Reserved
–
(0x64)
PRR
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
–
SP9
SP8
0x3D (0x5D)
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
0x3C (0x5C)
Reserved
–
0x3B (0x5B)
Reserved
–
0x3A (0x5A)
Reserved
–
0x39 (0x59)
Reserved
–
0x38 (0x58)
Reserved
–
0x37 (0x57)
SPMCSR
–
RWWSB
–
CTPB
RFLB
PGWRT
PGERS
SELFPRGEN
0x36 (0x56)
Reserved
–
0x35 (0x55)
MCUCR
–
BODS
BODSE
PUD
–
0x34 (0x54)
MCUSR
–
WDRF
BORF
EXTRF
PORF
0x33 (0x53)
SMCR
–
–SM1
SM0
SE
0x32 (0x52)
Reserved
–
0x31 (0x51)
DWDR
debugWire 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)
Reserved
–
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)
TCCR0A
–
CTC0
CS02
CS01
CS00
0x24 (0x44)
Reserved
–
0x23 (0x43)
GTCCR
TSM
–
PSRSYNC
0x22 (0x42)
Reserved
–
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
–
–INT1
INT0
0x1C (0x3C)
EIFR
–
INTF1
INTF0
0x1B (0x3B)
PCIFR
–
PCIF3
PCIF2
PCIF1
PCIF0
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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