Datasheet

417
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
(0x101) DDRH DDH7 DDH6 DDH5 DDH4 DDH3 DDH2 DDH1 DDH0 page 117
(0x100) PINHPINH7 PINH6 PINH5 PINH4 PINH3 PINH2 PINH1 PINH0 page 117
(0xFF) Reserved - - - - - - - -
(0xFE) Reserved - - - - - - - -
(0xFD) Reserved - - - - - - - -
(0xFC) Reserved
- - - - - - - -
(0xFB) Reserved
- - - - - - - -
(0xFA) Reserved - - - - - - - -
(0xF9) Reserved - - - - - - - -
(0xF8) Reserved - - - - - - - -
(0xF7) Reserved - - - - - - - -
(0xF6) Reserved - - - - - - - -
(0xF5) Reserved - - - - - - - -
(0xF4) Reserved - - - - - - - -
(0xF3) Reserved - - - - - - - -
(0xF2) Reserved - - - - - - - -
(0xF1) Reserved - - - - - - - -
(0xF0) Reserved
- - - - - - - -
(0xEF) Reserved
- - - - - - - -
(0xEE) Reserved - - - - - - - -
(0xED) Reserved - - - - - - - -
(0xEC) Reserved - - - - - - - -
(0xEB) Reserved - - - - - - -
(0xEA) Reserved - - - - - - - -
(0xE9) Reserved - - - - - - - -
(0xE8) Reserved - - - - - - - -
(0xE7) Reserved - - - - - - -
(0xE6) Reserved - - - - - - - -
(0xE5) Reserved - - - - - - - -
(0xE4) Reserved - - - - - - - -
(0xE3) Reserved - - - - - - -
(0xE2) Reserved - - - - - - - -
(0xE1) Reserved - - - - - - -
(0xE0) Reserved - - - - - - -
(0xDF) Reserved - - - - - - - -
(0xDE) Reserved - - - - - - - -
(0xDD) Reserved - - - - - - -
(0xDC) Reserved - - - - - - - -
(0xDB) Reserved - - - - - - - -
(0xDA) Reserved - - - - - - - -
(0xD9) Reserved - - - - - - -
(0xD8) Reserved - - - - - - - -
(0xD7) Reserved - - - - - - - -
(0xD6) UDR2 USART2 I/O Data Register page 227
(0xD5) UBRR2H
- - - - USART2 Baud Rate Register High Byte page 231
(0xD4) UBRR2L USART2 Baud Rate Register Low Byte page 231
(0xD3) Reserved
- - - - - - - -
(0xD2) UCSR2C UMSEL21 UMSEL20 UPM21 UPM20 USBS2 UCSZ21 UCSZ20 UCPOL2 page 244
(0xD1) UCSR2B RXCIE2 TXCIE2 UDRIE2 RXEN2TXEN2 UCSZ22 RXB82 TXB82 page 243
(0xD0) UCSR2A RXC2 TXC2 UDRE2 FE2 DOR2 UPE2 U2X2 MPCM2 page 242
(0xCF) Reserved
- - - - - - - -
(0xCE) UDR1 USART1 I/O Data Register page 227
(0xCD) UBRR1H - - - - USART1 Baud Rate Register High Byte page 231
(0xCC) UBRR1L USART1 Baud Rate Register Low Byte page 231
(0xCB) Reserved
- - - - - - - -
(0xCA) UCSR1C UMSEL11 UMSEL10 UPM11 UPM10 USBS1 UCSZ11 UCSZ10 UCPOL1 page 244
(0xC9) UCSR1B RXCIE1 TXCIE1 UDRIE1 RXEN1TXEN1 UCSZ12 RXB81 TXB81 page 243
(0xC8) UCSR1A RXC1 TXC1 UDRE1 FE1 DOR1 UPE1 U2X1 MPCM1 page 242
(0xC7) Reserved
- - - - - - - -
(0xC6) UDR0 USART0 I/O Data Register page 227
(0xC5) UBRR0H
- - - - USART0 Baud Rate Register High Byte page 231
(0xC4) UBRR0L USART0 Baud Rate Register Low Byte page 231
(0xC3) Reserved
- - - - - - - -
(0xC2) UCSR0C UMSEL01 UMSEL00 UPM01 UPM00 USBS0 UCSZ01 UCSZ00 UCPOL0 page 244
(0xC1) UCSR0B RXCIE0 TXCIE0 UDRIE0 RXEN0TXEN0 UCSZ02 RXB80 TXB80 page 243
(0xC0) UCSR0A RXC0 TXC0 UDRE0 FE0 DOR0 UPE0 U2X0 MPCM0 page 243
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page