ATmega48A/PA/88A/PA/168A/PA/328/P
7. Register Summary
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
(0xFF)
(0xFE)
(0xFD)
(0xFC)
(0xFB)
(0xFA)
(0xF9)
(0xF8)
(0xF7)
(0xF6)
(0xF5)
(0xF4)
(0xF3)
(0xF2)
(0xF1)
(0xF0)
(0xEF)
(0xEE)
(0xED)
(0xEC)
(0xEB)
(0xEA)
(0xE9)
(0xE8)
(0xE7)
(0xE6)
(0xE5)
(0xE4)
(0xE3)
(0xE2)
(0xE1)
(0xE0)
(0xDF)
(0xDE)
(0xDD)
(0xDC)
(0xDB)
(0xDA)
(0xD9)
(0xD8)
(0xD7)
(0xD6)
(0xD5)
(0xD4)
(0xD3)
(0xD2)
(0xD1)
(0xD0)
(0xCF)
(0xCE)
(0xCD)
(0xCC)
(0xCB)
(0xCA)
(0xC9)
(0xC8)
(0xC7)
(0xC6)
(0xC5)
(0xC4)
(0xC3)
(0xC2)
(0xC1)
(0xC0)
Reserved
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UDR0
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USART I/O Data Register
201
205
205
UBRR0H
UBRR0L
Reserved
UCSR0C
UCSR0B
UCSR0A
USART Baud Rate Register High
USART Baud Rate Register Low
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UCSZ01 /UDORD0
UCSZ02
UPE0
UCSZ00 / UCPHA0
UMSEL01
RXCIE0
RXC0
UMSEL00
TXCIE0
TXC0
UPM01
UDRIE0
UDRE0
UPM00
RXEN0
FE0
USBS0
TXEN0
DOR0
UCPOL0
TXB80
MPCM0
203/214
202
RXB80
U2X0
201
9
8271DS–AVR–05/11