ATmega48A/48PA/88A/88PA/168A/168PA/328/328P
4. Register Summary
Address
(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)
Name
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UDR0
UBRR0H
UBRR0L
Reserved
UCSR0C
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Bit 2
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Bit 1
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Bit 0
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Page
USART I/O Data Register
USART Baud Rate Register High
USART Baud Rate Register Low
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UMSEL01
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UMSEL00
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UPM01
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UPM00
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USBS0
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UCSZ01 /UDORD0
196
200
200
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UCSZ00 / UCPHA0
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UCPOL0
198/213
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8271BS–AVR–04/10