Address
(0xC2)
(0xC1)
(0xC0)
(0xBF)
(0xBE)
(0xBD)
(0xBC)
(0xBB)
(0xBA)
(0xB9)
(0xB8)
(0xB7)
(0xB6)
(0xB5)
(0xB4)
(0xB3)
(0xB2)
(0xB1)
(0xB0)
(0xAF)
(0xAE)
(0xAD)
(0xAC)
(0xAB)
(0xAA)
(0xA9)
(0xA8)
(0xA7)
(0xA6)
(0xA5)
(0xA4)
(0xA3)
(0xA2)
(0xA1)
(0xA0)
(0x9F)
(0x9E)
(0x9D)
(0x9C)
(0x9B)
(0x9A)
(0x99)
(0x98)
(0x97)
(0x96)
(0x95)
(0x94)
(0x93)
(0x92)
(0x91)
(0x90)
(0x8F)
(0x8E)
(0x8D)
(0x8C)
(0x8B)
(0x8A)
(0x89)
(0x88)
(0x87)
(0x86)
(0x85)
(0x84)
Name
UCSR0C
UCSR0B
UCSR0A
Reserved
Reserved
Reserved
Reserved
Reserved
USIDR
USISR
USICR
Reserved
ASSR
Reserved
Reserved
OCR2A
TCNT2
Reserved
TCCR2A
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OCR1BH
OCR1BL
OCR1AH
OCR1AL
ICR1H
ICR1L
TCNT1H
TCNT1L
Bit 7
-
RXCIE0
RXC0
-
-
-
-
-
USISIF
USISIE
-
-
-
-
Bit 6
UMSEL0
TXCIE0
TXC0
-
-
-
-
-
USIOIF
USIOIE
-
-
-
-
Bit 5
UPM01
UDRIE0
UDRE0
-
-
-
-
-
USIPF
USIWM1
-
-
-
-
Bit 4
UPM00
RXEN0
FE0
-
-
-
-
-
USIDC
USIWM0
-
EXCLK
-
-
Bit 3
USBS0
TXEN0
DOR0
-
-
-
-
-
USICNT3
USICS1
-
AS2
-
-
Bit 2
UCSZ01
UCSZ02
UPE0
-
-
-
-
-
USICNT2
USICS0
-
TCN2UB
-
-
Bit 1
UCSZ00
RXB80
U2X0
-
-
-
-
-
USICNT1
USICLK
-
OCR2UB
-
-
Bit 0
UCPOL0
TXB80
MPCM0
-
-
-
-
-
Page
181
180
179
USI Data Register
USICNT0
USITC
-
TCR2UB
-
-
194
195
196
147
Timer/Counter 2 Output Compare Register A
Timer/Counter2
-
FOC2A
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
WGM20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM2A1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
COM2A0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
WGM21
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS22
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS21
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
146
146
144
Timer/Counter1 Output Compare Register B High
Timer/Counter1 Output Compare Register B Low
Timer/Counter1 Output Compare Register A High
Timer/Counter1 Output Compare Register A Low
Timer/Counter1 Input Capture Register High
Timer/Counter1 Input Capture Register Low
Timer/Counter1 High
Timer/Counter1 Low
130
130
130
130
130
130
130
130
10
ATmega329/3290/649/6490
2552HS–AVR–11/06
ATMEL [ ATMEL CORPORATION ]
