ATTINY85-20SI View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
ATTINY85-20SI Datasheet PDF : 16 Pages
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ATtiny25/45/85
3. Register Summary
Address
0x3F
0x3E
0x3D
0x3C
0x3B
0x3A
0x39
0x38
0x37
0x36
0x35
0x34
0x33
0x32
0x31
0x30
0x2F
0x2E
0x2D
0x2C
0x2B
0x2A
0x29
0x28
0x27
0x26
0x25
0x24
0x23
0x22
0x21
0x20
0x1F
0x1E
0x1D
0x1C
0x1B
0x1A
0x19
0x18
0x17
0x16
0x15
0x14
0x13
0x12
0x11
0x10
0x0F
0x0E
0x0D
0x0C
0x0B
0x0A
0x09
0x08
0x07
0x06
0x05
0x04
0x03
0x02
0x01
0x00
Name
SREG
SPH
SPL
Reserved
GIMSK
GIFR
TIMSK
TIFR
SPMCSR
Reserved
MCUCR
MCUSR
TCCR0B
TCNT0
OSCCAL
TCCR1
TCNT1
OCR1A
OCR1C
GTCCR
OCR1B
TCCR0A
OCR0A
OCR0B
PLLCSR
CLKPR
DT1A
DT1B
DTPS1
DWDR
WDTCR
PRR
EEARH
EEARL
EEDR
EECR
Reserved
Reserved
Reserved
PORTB
DDRB
PINB
PCMSK
DIDR0
GPIOR2
GPIOR1
GPIOR0
USIBR
USIDR
USISR
USICR
Reserved
Reserved
Reserved
Reserved
ACSR
ADMUX
ADCSRA
ADCH
ADCL
ADCSRB
Reserved
Reserved
Reserved
Bit 7
I
–
SP7
–
–
–
–
–
–
–
FOC0A
CTC1
TSM
COM0A1
SM
CLKPCE
DT1AH3
DT1BH3
-
WDTIF
–
EEAR7
–
–
–
–
–
–
USICIF
USISIE
ACD
REFS1
ADEN
BIN
Bit 6
T
–
SP6
INT0
INTF0
OCIE1A
OCF1A
–
PUD
–
FOC0B
PWM1A
PWM1B
COM0A0
–
–
DT1AH2
DT1BH2
-
WDTIE
EEAR6
–
–
–
–
–
–
USIOIF
USIOIE
ACBG
REFS0
ADSC
ACME
Bit 5
Bit 4
Bit 3
Bit 2
H
S
V
N
–
–
–
–
SP5
SP4
SP3
SP2
–
PCIE
–
–
–
PCIF
–
–
–
OCIE1B
OCIE0A
OCIE0B
TOIE1
OCF1B
OCF0A
OCF0B
TOV1
–
CTPB
RFLB
PGWRT
–
SE
SM1
SM0
–
–
–
WDRF
BORF
–
–
WGM02
CS02
Timer/Counter0
Oscillator Calibration Register
COM1A1
COM1A0
CS13
CS12
Timer/Counter1
Timer/Counter1 Output Compare Register A
Timer/Counter1 Output Compare Register C
COM1B1
COM1B0
FOC1B
FOC1A
Timer/Counter1 Output Compare Register B
COM0B1
COM0B0
–
Timer/Counter0 – Output Compare Register A
Timer/Counter0 – Output Compare Register B
–
–
–
PCKE
–
–
CLKPS3
CLKPS2
DT1AH1
DT1AH0
DT1AL3
DT1AL2
DT1BH1
DT1BH0
DT1BL3
DT1BL2
-
-
-
-
DWDR[7:0]
WDP3
WDCE
WDE
WDP2
PRTIM1
PRTIM0
EEAR5
EEPM1
PORTB5
DDB5
PINB5
PCINT5
ADC0D
USIPF
USIWM1
ACO
ADLAR
ADATE
IPR
EEAR4
EEAR3
EEPROM Data Register
EEPM0
EERIE
–
–
–
PORTB4
PORTB3
DDB4
DDB3
PINB4
PINB3
PCINT4
PCINT3
ADC2D
ADC3D
General Purpose I/O Register 2
General Purpose I/O Register 1
General Purpose I/O Register 0
USI Buffer Register
USI Data Register
USIDC
USICNT3
USIWM0
USICS1
–
–
–
–
ACI
ACIE
REFS2
MUX3
ADIF
ADIE
ADC Data Register High Byte
ADC Data Register Low Byte
–
–
–
–
–
EEAR2
EEMWE
PORTB2
DDB2
PINB2
PCINT2
ADC1D
USICNT2
USICS0
–
MUX2
ADPS2
ADTS2
Bit 1
Z
–
SP1
–
–
TOIE0
TOV0
PGERS
ISC01
EXTRF
CS01
CS11
PSR1
WGM01
PLLE
CLKPS1
DT1AL1
DT1BL1
DTPS11
WDP1
PRUSI
EEAR1
EEWE
PORTB1
DDB1
PINB1
PCINT1
EIN1D
USICNT1
USICLK
ACIS1
MUX1
ADPS1
ADTS1
Bit 0
C
SP8
SP0
Page
page 7
page 10
page 10
–
–
–
–
SPMEN
page 49
page 50
page 81
page 81
page 146
ISC00
PORF
CS00
CS10
PSR0
WGM00
PLOCK
CLKPS0
DT1AL0
DT1BL0
DTPS10
WDP0
PRADC
EEAR8
EEAR0
EERE
page 32, page 60, page 49
page 40,
page 79
page 80
page 27
page 88, page 100
page 90, page 101
page 90, page 102
page 91, page 102
page 84, page 89, page
page 91
page 76
page 80
page 80
page 93, page 103
page 30
page 108
page 109
page 108
page 143
page 42
page 33
page 16
page 16
page 16
page 17
PORTB0
DDB0
PINB0
PCINT0
AIN0D
page 64
page 64
page 64
page 51
page 124, page 141
USICNT0
USITC
page 118
page 117
page 118
page 119
ACIS0
MUX0
ADPS0
ADTS0
page 122
page 137
page 138
page 140
page 140
page 122, page 140
5
2586AS–AVR–02/05
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