ATMEGA168A View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA168A

8-bit Atmel Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

Atmel Corporation 

ATmega48A/PA/88A/PA/168A/PA/328/P

7. 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)

(0xC1)

(0xC0)

Name

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

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

UDR0

UBRR0H

UBRR0L

Reserved

UCSR0C

UCSR0B

UCSR0A

Bit 7

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UMSEL01

RXCIE0

RXC0

Bit 6

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UMSEL00

TXCIE0

TXC0

Bit 5

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UPM01

UDRIE0

UDRE0

Bit 4

Bit 3

Bit 2

Bit 1

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USART I/O Data Register

USART Baud Rate Register High

USART Baud Rate Register Low

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UPM00

USBS0

UCSZ01 /UDORD0

UCSZ00 / UCPHA0

RXEN0

TXEN0

UCSZ02

RXB80

FE0

DOR0

UPE0

U2X0

Bit 0

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UCPOL0

TXB80

MPCM0

8271DS–AVR–05/11

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