ATMEGA103 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
ATMEGA103 Datasheet PDF : 10 Pages
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ATmega603/103 Register Summary
Address
$3F ($5F)
$3E ($5E)
$3D ($5D)
$3C ($5C)
$3B ($5B)
$3A ($5A)
$39 ($59)
$38 ($58)
$37 ($57)
$36 ($56)
$35 ($55)
$34 ($54)
$33 ($53)
$32 ($52)
$31 ($51)
$30 ($50)
$2F ($4F)
$2E ($4E)
$2D ($4D)
$2C ($4C)
$2B ($4B)
$2A ($4A)
$29 ($49)
$28 ($48)
$27 ($47)
$26 ($46)
$25 ($45)
$24 ($44)
$23 ($43)
$21 ($47)
$1F ($3F)
$1E ($3E)
$1D ($3D)
$1C ($3C)
$1B ($3B)
$1A ($3A)
$19 ($39)
$18 ($38)
$17 ($37)
$16 ($36)
$15 ($35)
$12 ($32)
$11 ($31)
$10 ($30)
$0F ($2F)
$0E ($2E)
$0D ($2D)
$0C ($2C)
$0B ($2B)
$0A ($2A)
$09 ($29)
$08 ($28)
$07 ($27)
$06 ($26)
$05 ($25)
$04 ($24)
$03 ($23)
$02 ($22)
$01 ($21)
$00 ($20)
Name
SREG
SPH
SPL
XDIV
RAMPZ
EICR
EIMSK
EIFR
TIMSK
TIFR
MCUCR
MCUSR
TCCR0
TCNT0
OCR0
ASSR
TCCR1A
TCCR1B
TCNT1H
TCNT1L
OCR1AH
OCR1AL
OCR1BH
OCR1BL
ICR1H
ICR1L
TCCR2
TCNT2
OCR2
WDTCR
EEARH
EEARL
EEDR
EECR
PORTA
DDRA
PINA
PORTB
DDRB
PINB
PORTC
PORTD
DDRD
PIND
SPDR
SPSR
SPCR
UDR
USR
UCR
UBRR
ACSR
ADMUX
ADCSR
ADCH
ADCL
PORTE
DDRE
PINE
PINF
Bit7
Bit6
Bit5
Bit4
I
T
H
S
SP15
SP14
SP13
SP12
SP7
SP6
SP5
SP4
XDIVEN
XDIV6
XDIV5
XDIV4
-
-
-
-
ISC71
ISC70
ISC61
ISC60
INT7
INT6
INT5
INT4
INTF7
INTF6
INTF5
INTF4
OCIE2
TOIE2
TICIE1
OCIE1A
OCF2
TOV2
ICF1
OCF1A
SRE
SRW
SE
SM1
-
-
-
-
-
PWM0
COM01
COM00
Timer/Counter0 (8 Bit)
Timer/Counter0 Output Compare Register
-
-
-
-
COM1A1
COM1A0
COM1B1
COM1B0
ICNC1
ICES1
-
-
Timer/Counter1 - Counter Register High Byte
Timer/Counter1 - Counter Register Low Byte
Timer/Counter1 - Output Compare Register A High Byte
Timer/Counter1 - Output Compare Register A Low Byte
Timer/Counter1 - Output Compare Register B High Byte
Timer/Counter1 - Output Compare Register B Low Byte
Timer/Counter1 - Input Capture Register High Byte
Timer/Counter1 - Input Capture Register Low Byte
-
PWM2
COM21
COM20
Timer/Counter2 (8 Bit)
Timer/Counter2 Output Compare Register
-
-
-
-
-
-
WDTOE
-
EEPROM Address Register L
EEPROM Data Register
-
-
-
-
PORTA7
PORTA6
PORTA5
PORTA4
DDA7
DDA6
DDA5
DDA4
PINA7
PINA6
PINA5
PINA4
PORTB7
PORTB6
PORTB5
PORTB4
DDB7
DDB6
DDB5
DDB4
PINB7
PINB6
PINB5
PINB4
PORTC7
PORTC6
PORTC5
PORTC4
PORTD7
PORTD6
PORTD5
PORTD4
DDD7
DDD6
DDD5
DDD4
PIND7
PIND6
PIND5
PIND4
SPI Data Register
SPIF
WCOL
-
-
SPIE
SPE
DORD
MSTR
UART I/O Data Register
RXC
TXC
UDRE
FE
RXCIE
TXCIE
UDRIE
RXEN
UART Baud Rate Register
ACD
-
ACO
ACI
-
-
-
-
ADES
ABSY
ADRF
ADIF
-
-
-
-
ADC7
ADC6
ADC5
ADC4
PORTE7
PORTE6
PORTE5
PORTE4
DDE7
DDE6
DDE5
DDE4
PINE7
PINE6
PINE5
PINE4
PINF7
PINF6
PINF5
PINF4
Bit3
V
SP11
SP3
XDIV3
-
ISC51
INT3
-
OCIE1B
OCF1B
SM0
-
CTC0
AS0
-
CTC1
CTC2
WDE
EEAR11
EERIE
PORTA3
DDA3
PINA3
PORTB3
DDB3
PINB3
PORTC3
PORTD3
DDD3
PIND3
-
CPOL
OR
TXEN
ACIE
-
ADIE
-
ADC3
PORTE3
DDE3
PINE3
PINF3
Bit2
N
SP10
SP2
XDIV2
-
ISC50
INT2
-
TOIE1
TOV1
-
-
CS02
TCN0UB
-
CS12
CS22
WDP2
EEAR10
EEMWE
PORTA2
DDA2
PINA2
PORTB2
DDB2
PINB2
PORTC2
PORTD2
DDD2
PIND2
-
CPHA
-
CHR9
ACIC
MUX2
ADPS2
-
ADC2
PORTE2
DDE2
PINE2
PINF2
Bit1
Z
SP9
SP1
XDIV1
-
ISC41
INT1
-
OCIE0
OCF0
-
EXTRF
CS01
OCR0UB
PWM11
CS11
CS21
WDP1
EEAR9
EEWE
PORTA1
DDA1
PINA1
PORTB1
DDB1
PINB1
PORTC1
PORTD1
DDD1
PIND1
-
SPR1
-
RXB8
ACIS1
MUX1
ADPS1
ADC9
ADC1
PORTE1
DDE1
PINE1
PINF1
Bit0
C
SP8
SP0
XDIV0
RAMPZ0
ISC40
INT0
-
TOIE0
TOV0
-
PORF
CS00
TCR0UB
PWM10
CS10
CS20
WDP0
EEAR8
EERE
PORTA0
DDA0
PINA0
PORTB0
DDB0
PINB0
PORTC0
PORTD0
DDD0
PIND0
-
SPR0
-
TXB8
ACIS0
MUX0
ADPS0
ADC8
ADC0
PORTE0
DDE0
PINE0
PINF0
Page
page 14
page 14
page 14
page 16
page 15
page 23
page 22
page 22
page 23
page 24
page 15
page 21
page 28
page 30
page 30
page 32
page 34
page 37
page 36
page 36
page 37
page 37
page 37
page 37
page 37
page 37
page 28
page 30
page 30
page 40
page 41
page 41
page 41
page 41
page 57
page 57
page 57
page 59
page 59
page 59
page 65
page 66
page 66
page 66
page 46
page 46
page 45
page 49
page 49
page 50
page 51
page 52
page 54
page 54
page 55
page 55
page 69
page 69
page 69
page 73
6 ATmega603(L) and ATmega103(L)
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