ATMEGA8L ATMEL [ATMEL Corporation], ATMEGA8L Datasheet - Page 282

• Manufacturer Part Number: ATMEGA8L
• Description: 8-bit AVR with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Register Summary
282
0x20
0x3E (0x5E)
0x3D (0x5D)
0x3C (0x5C)
0x3B (0x5B)
0x3A (0x5A)
0x2E (0x4E)
0x2D (0x4D)
0x2C (0x4C)
0x2B (0x4B)
0x2A (0x4A)
0x1E (0x3E)
0x1D (0x3D)
0x1C (0x3C)
0x1B (0x3B)
0x1A (0x3A)
0x0E (0x2E)
0x0D (0x2D)
0x0C (0x2C)
0x0B (0x2B)
0x0A (0x2A)
0x3F (0x5F)
0x39 (0x59)
0x38 (0x58)
0x37 (0x57)
0x36 (0x56)
0x35 (0x55)
0x34 (0x54)
0x33 (0x53)
0x32 (0x52)
0x31 (0x51)
0x30 (0x50)
0x2F (0x4F)
0x29 (0x49)
0x28 (0x48)
0x27 (0x47)
0x26 (0x46)
0x25 (0x45)
0x24 (0x44)
0x23 (0x43)
0x22 (0x42)
0x21 (0x41)
0x1F (0x3F)
0x19 (0x39)
0x18 (0x38)
0x17 (0x37)
0x16 (0x36)
0x15 (0x35)
0x14 (0x34)
0x13 (0x33)
0x12 (0x32)
0x11 (0x31)
0x10 (0x30)
0x0F (0x2F)
0x09 (0x29)
0x08 (0x28)
0x07 (0x27)
0x06 (0x26)
0x05 (0x25)
0x04 (0x24)
0x03 (0x23)
0x02 (0x22)
Address
(1)
(0x40)
(1)
ATmega8(L)
MCUCSR
Reserved
OCR1AH
OCR1BH
Reserved
Reserved
Reserved
ADCSRA
OSCCAL
TCCR1A
TCCR1B
TCNT1H
OCR1AL
OCR1BL
TCNT1L
SPMCR
MCUCR
WDTCR
ADMUX
TCCR0
TCCR2
UBRRH
UCSRC
EEARH
PORTB
PORTC
PORTD
UCSRA
UCSRB
UBRRL
Name
TCNT0
TCNT2
EEARL
TIMSK
TWCR
SFIOR
ICR1H
TWDR
TWAR
SREG
ICR1L
OCR2
EEDR
EECR
DDRB
DDRC
DDRD
SPDR
SPCR
ACSR
ADCH
ASSR
SPSR
ADCL
GICR
GIFR
PINB
PINC
PIND
TIFR
UDR
SPH
SPL
COM1A1
PORTD7
PORTB7
URSEL
URSEL
EEAR7
REFS1
SPMIE
TWINT
RXCIE
OCIE2
ICNC1
PINB7
PIND7
INTF1
OCF2
FOC2
DDB7
DDD7
ADEN
TWA6
Bit 7
SPIF
SPIE
INT1
RXC
ACD
SP7
SE
–
–
–
–
–
–
–
–
–
–
–
I
COM1A0
PORTB6
PORTC6
PORTD6
RWWSB
WGM20
UMSEL
EEAR6
REFS0
PINC6
PIND6
WCOL
TXCIE
INTF0
TOIE2
TWEA
ICES1
PINB6
ACBG
ADSC
TWA5
Bit 6
TOV2
DDB6
DDC6
DDD6
INT0
SM2
SPE
TXC
SP6
T
–
–
–
–
–
–
–
–
–
COM1B1
PORTC5
PORTD5
PORTB5
TWSTA
COM21
EEAR5
ADLAR
TICIE1
UDRIE
UPM1
PINB5
PINC5
PIND5
DORD
UDRE
TWA4
DDB5
DDC5
DDD5
ADFR
Bit 5
ICF1
SM1
ACO
SP5
Timer/Counter1 – Output Compare Register A High byte
Timer/Counter1 – Output Compare Register B High byte
Timer/Counter1 – Output Compare Register A Low byte
Timer/Counter1 – Output Compare Register B Low byte
H
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Timer/Counter1 – Input Capture Register High byte
Timer/Counter1 – Input Capture Register Low byte
Timer/Counter1 – Counter Register High byte
Timer/Counter1 – Counter Register Low byte
Timer/Counter2 Output Compare Register
Two-wire Serial Interface Data Register
USART Baud Rate Register Low byte
RWWSRE
Oscillator Calibration Register
ADC Data Register High byte
ADC Data Register Low byte
COM1B0
PORTC4
PORTD4
PORTB4
OCIE1A
TWSTO
WGM13
COM20
OCF1A
EEAR4
WDCE
PINB4
PINC4
PIND4
UPM0
DDB4
DDC4
DDD4
MSTR
RXEN
TWA3
Bit 4
USART I/O Data Register
ADIF
SP4
SM0
Timer/Counter0 (8 Bits)
Timer/Counter2 (8 Bits)
EEPROM Data Register
ACI
FE
S
–
–
–
–
–
–
–
–
–
–
–
–
SPI Data Register
PORTB3
PORTC3
PORTD3
BLBSET
OCIE1B
WGM12
WGM21
OCF1B
TWWC
FOC1A
EEAR3
WDRF
EERIE
PINC3
PIND3
ISC11
ACME
PINB3
MUX3
TWA2
USBS
DDB3
DDC3
DDD3
CPOL
TXEN
Bit 3
WDE
ACIE
ADIE
DOR
SP3
AS2
V
–
–
–
–
–
–
PORTC2
PORTD2
TCN2UB
PORTB2
PGWRT
EEMWE
FOC1B
UCSZ1
EEAR2
UCSZ2
ADPS2
TOIE1
TWEN
WDP2
PINB2
PINC2
PIND2
ISC10
BORF
DDB2
DDC2
DDD2
CPHA
MUX2
TWA1
Bit 2
SP10
TOV1
CS02
CS12
CS22
ACIC
PUD
SP2
PE
N
–
–
–
–
UBRR[11:8]
OCR2UB
PORTB1
PORTC1
PORTD1
WGM11
PGERS
EXTRF
UCSZ0
EEAR1
ADPS1
IVSEL
ISC01
WDP1
EEWE
PINB1
PINC1
PIND1
ACIS1
MUX1
TWA0
PSR2
DDB1
DDC1
DDD1
SPR1
RXB8
Bit 1
CS01
CS11
CS21
SP9
SP1
U2X
Z
–
–
–
–
–
–
TCR2UB
PORTB0
PORTC0
PORTD0
TWGCE
SPMEN
WGM10
UCPOL
PSR10
EEAR8
EEAR0
ADPS0
TOIE0
WDP0
PINB0
PINC0
PIND0
MPCM
ACIS0
ISC00
PORF
EERE
DDC0
DDD0
SPI2X
MUX0
Bit 0
TOV0
TWIE
CS00
CS10
CS20
DDB0
SPR0
TXB8
IVCE
SP8
SP0
C
–
2486M–AVR–12/03
56, 73, 121, 190
70, 100, 120
71, 101, 120
Page
47, 65
31, 64
210
168
100
100
115
117
117
117
155
153
128
128
126
150
151
152
155
191
202
204
205
170
170
205
11
11
39
70
70
29
95
98
99
99
99
99
99
99
41
18
18
18
18
63
63
63
63
63
63
63
63
63
66
9