ATMEGA128-8AI ATMEL Corporation, ATMEGA128-8AI Datasheet - Page 9

• Manufacturer Part Number: ATMEGA128-8AI
• Description: 8-bit Microcontroller with 128K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Register Summary (Continued)
2467AS–08/01
Address
$3D ($5D)
$3C ($5C)
$2D ($4D)
$2C ($4C)
$1D ($3D)
$1C ($3C)
$0D ($2D)
$0C ($2C)
$3E ($5E)
$3B ($5B)
$3A ($5A)
$2E ($4E)
$2B ($4B)
$2A ($4A)
$1E ($3E)
$1B ($3B)
$1A ($3A)
$0E ($2E)
$0B ($2B)
$0A ($2A)
$3F ($5F)
$39 ($59)
$38 ($58)
$37 ($57)
$36 ($56)
$35 ($55)
$34 ($54)
$33 ($53)
$32 ($52)
$31 ($51)
$30 ($50)
$2F ($4F)
$29 ($49)
$28 ($48)
$27 ($47)
$26 ($46)
$25 ($45)
$24 ($44)
$23 ($43)
$22 ($42)
$21 ($41)
$20 ($40)
$1F ($3F)
$19 ($39)
$18 ($38)
$17 ($37)
$16 ($36)
$15 ($35)
$14 ($34)
$13 ($33)
$12 ($32)
$11 ($31)
$10 ($30)
$0F ($2F)
$09 ($29)
$08 ($28)
$07 ($27)
$06 ($26)
$05 ($25)
$04 ($24)
$03 ($23)
$02 ($22)
($61)
($60)
Reserved
MCUCSR
OCR1AH
OCR1BH
ADCSRA
TCCR1A
TCCR1B
TCNT1H
OCR1AL
OCR1BL
UCSR0A
UCSR0B
UBRR0L
MCUCR
TCNT1L
WDTCR
Name
RAMPZ
PORTC
PORTD
ADMUX
TCCR0
TCCR2
EEARH
EEARL
PORTA
PORTB
PORTE
EICRB
EIMSK
TIMSK
TCNT0
TCNT2
SFIOR
ICR1H
OCDR
DDRC
DDRD
DDRF
SREG
OCR0
ASSR
ICR1L
OCR2
EEDR
EECR
DDRA
DDRB
SPDR
SPSR
SPCR
UDR0
ACSR
ADCH
ADCL
DDRE
XDIV
EIFR
PINA
PINB
PINC
PIND
SPH
TIFR
SPL
EEPROM Address Register Low Byte
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
Timer/Counter2 (8 Bit)
Timer/Counter2 Output Compare Register
EEPROM Data Register
ADC Data Register High Byte
ADC Data Register Low byte
Timer/Counter0 (8 Bit)
Timer/Counter0 Output Compare Register
SPI Data Register
USART0 I/O Data Register
USART0 Baud Rate Register Low
COM1A1
PORTC7
PORTD7
PORTA7
PORTB7
PORTE7
XDIVEN
OCDR7
RXCIE0
REFS1
Bit 7
OCIE2
ICNC1
PINA7
PINB7
PINC7
PIND7
ISC71
INTF7
OCF2
FOC0
FOC2
IDRD/
DDA7
DDB7
DDC7
DDD7
RXC0
ADEN
DDE7
DDF7
SP15
SPIE
INT7
TSM
SPIF
ACD
SP7
SRE
JTD
-
I
-
-
-
-
-
COM1A0
PORTC6
PORTD6
PORTA6
PORTB6
PORTE6
WGM00
WGM20
SRW10
OCDR6
TXCIE0
REFS0
Bit 6
XDIV6
TOIE2
ICES1
PINA6
PINB6
PINC6
PIND6
WCOL
ISC70
INTF6
DDA6
DDB6
DDC6
DDD6
ACBG
ADSC
DDE6
DDF6
SP14
TOV2
TXC0
INT6
SP6
SPE
T
-
-
-
-
-
-
-
-
COM1B1
PORTC5
PORTD5
PORTA5
PORTB5
PORTE5
UDRIE0
COM01
COM21
OCDR5
UDRE0
ADLAR
TICIE1
Bit 5
XDIV5
PINA5
PINB5
PINC5
PIND5
DORD
ISC61
INTF5
DDA5
DDB5
DDC5
DDD5
ADRF
DDE5
DDF5
SP13
INT5
ICF1
ACO
SP5
SE
H
-
-
-
-
-
-
-
-
-
-
COM1B0
PORTA4
PORTB4
PORTC4
PORTD4
PORTE4
OCIE1A
WGM13
ADHSM
COM00
COM20
OCDR4
OCF1A
RXEN0
WDCE
Bit 4
XDIV4
PINA4
PINB4
PINC4
PIND4
MSTR
DDF4
ISC60
INTF4
DDA4
DDB4
DDC4
DDD4
MUX4
DDE4
SP12
JTRF
ADIF
INT4
SM1
SP4
FE0
ACI
S
-
-
-
-
-
-
COM1C1
PORTA3
PORTB3
PORTC3
PORTD3
PORTE3
OCIE1B
WGM01
WGM12
WGM21
OCDR3
OCF1B
TXEN0
WDRF
EERIE
Bit 3
XDIV3
ACME
PINA3
PINB3
PINC3
PIND3
DDF3
ISC51
INTF3
DDA3
DDB3
DDC3
DDD3
CPOL
DOR0
MUX3
DDE3
SP11
WDE
ACIE
ADIE
INT3
SM0
SP3
AS0
V
-
-
-
EEPROM Address Register High
COM1C0
TCN0UB
PORTA2
PORTB2
PORTC2
PORTD2
PORTE2
EEMWE
UCSZ02
OCDR2
ADPS2
Bit 2
XDIV2
ISC50
TOIE1
BORF
WDP2
PINA2
PINB2
PINC2
PIND2
CPHA
MUX2
DDF2
TOV1
DDA2
DDB2
DDC2
DDD2
UPE0
DDE2
SP10
CS02
CS12
CS22
ACIC
INT2
INTF
SM2
PUD
SP2
N
-
-
-
OCR0UB
PORTA1
PORTB1
PORTC1
PORTD1
PORTE1
WGM11
OCDR1
EXTRF
ADPS1
OCIE0
RXB80
Bit 1
XDIV1
IVSEL
WDP1
EEWE
PINA1
PINB1
PINC1
PIND1
ACIS1
DDF1
ISC41
INTF1
OCF0
PSR0
DDA1
DDB1
DDC1
DDD1
SPR1
MUX1
DDE1
CS01
CS11
CS21
U2X0
INT1
SP9
SP1
Z
-
-
-
ATmega128(L)
PORTC0
PORTD0
RAMPZ0
TCR0UB
PORTA0
PORTB0
PORTE0
WGM10
PSR321
OCDR0
MPCM0
ADPS0
Bit 0
XDIV0
TOIE0
WDP0
PINA0
PINB0
PINC0
PIND0
TXB80
ACIS0
ISC40
INTF0
PORF
EERE
DDA0
DDB0
DDC0
DDD0
SPI2X
MUX0
DDE0
DDF0
TOV0
CS00
CS10
CS20
SPR0
IVCE
INT0
SP8
SP0
C
-
67, 104, 139, 237
103, 134, 153
103, 136, 154
29, 41, 58
49, 246
Page
100
100
101
127
130
132
132
133
133
133
133
134
134
151
153
153
242
163
162
161
182
183
184
186
218
233
235
236
236
83
12
12
39
12
85
86
86
98
51
19
19
20
20
81
81
81
81
81
82
82
82
82
82
82
82
82
83
9
9