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ATMEGA1281-16AU Datasheet(PDF) 15 Page - ATMEL Corporation

Part No. ATMEGA1281-16AU
Description  8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
Download  37 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA1281-16AU Datasheet(HTML) 15 Page - ATMEL Corporation

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15
2549LS–AVR–08/07
ATmega640/1280/1281/2560/2561
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
should never be written.
2. I/O registers within the address range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these reg-
isters, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on
all bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions
work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses $00 - $3F must be used. When addressing I/O regis-
ters as data space using LD and ST instructions, $20 must be added to these addresses. The
ATmega640/1280/1281/2560/2561 is a complex microcontroller with more peripheral units than can be supported within
the 64 location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from $60 - $1FF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used.
0x1A (0x3A)
TIFR5
-
-ICF5
-
OCF5C
OCF5B
OCF5A
TOV5
page 168
0x19 (0x39)
TIFR4
-
-ICF4
-
OCF4C
OCF4B
OCF4A
TOV4
page 169
0x18 (0x38)
TIFR3
-
-ICF3
-
OCF3C
OCF3B
OCF3A
TOV3
page 168
0x17 (0x37)
TIFR2
-
-
-
-
-
OCF2B
OCF2A
TOV2
page 194
0x16 (0x36)
TIFR1
-
-ICF1
-
OCF1C
OCF1B
OCF1A
TOV1
page 168
0x15 (0x35)
TIFR0
-
-
-
-
-
OCF0B
OCF0A
TOV0
page 134
0x14 (0x34)
PORTG
-
-
PORTG5
PORTG4
PORTG3
PORTG2
PORTG1
PORTG0
page 102
0x13 (0x33)
DDRG
-
-
DDG5
DDG4
DDG3
DDG2
DDG1
DDG0
page 102
0x12 (0x32)
PING
-
-
PING5
PING4
PING3
PING2
PING1
PING0
page 103
0x11 (0x31)
PORTF
PORTF7
PORTF6
PORTF5
PORTF4
PORTF3
PORTF2
PORTF1
PORTF0
page 101
0x10 (0x30)
DDRF
DDF7
DDF6
DDF5
DDF4
DDF3
DDF2
DDF1
DDF0
page 102
0x0F (0x2F)
PINF
PINF7
PINF6
PINF5
PINF4
PINF3
PINF2
PINF1
PINF0
page 102
0x0E (0x2E)
PORTE
PORTE7
PORTE6
PORTE5
PORTE4
PORTE3
PORTE2
PORTE1
PORTE0
page 102
0x0D (0x2D)
DDRE
DDE7
DDE6
DDE5
DDE4
DDE3
DDE2
DDE1
DDE0
page 102
0x0C (0x2C)
PINE
PINE7
PINE6
PINE5
PINE4
PINE3
PINE2
PINE1
PINE0
page 102
0x0B (0x2B)
PORTD
PORTD7
PORTD6
PORTD5
PORTD4
PORTD3
PORTD2
PORTD1
PORTD0
page 101
0x0A (0x2A)
DDRD
DDD7
DDD6
DDD5
DDD4
DDD3
DDD2
DDD1
DDD0
page 101
0x09 (0x29)
PIND
PIND7
PIND6
PIND5
PIND4
PIND3
PIND2
PIND1
PIND0
page 101
0x08 (0x28)
PORTC
PORTC7
PORTC6
PORTC5
PORTC4
PORTC3
PORTC2
PORTC1
PORTC0
page 101
0x07 (0x27)
DDRC
DDC7
DDC6
DDC5
DDC4
DDC3
DDC2
DDC1
DDC0
page 101
0x06 (0x26)
PINC
PINC7
PINC6
PINC5
PINC4
PINC3
PINC2
PINC1
PINC0
page 101
0x05 (0x25)
PORTB
PORTB7
PORTB6
PORTB5
PORTB4
PORTB3
PORTB2
PORTB1
PORTB0
page 101
0x04 (0x24)
DDRB
DDB7
DDB6
DDB5
DDB4
DDB3
DDB2
DDB1
DDB0
page 101
0x03 (0x23)
PINB
PINB7
PINB6
PINB5
PINB4
PINB3
PINB2
PINB1
PINB0
page 101
0x02 (0x22)
PORTA
PORTA7
PORTA6
PORTA5
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
page 100
0x01 (0x21)
DDRA
DDA7
DDA6
DDA5
DDA4
DDA3
DDA2
DDA1
DDA0
page 100
0x00 (0x20)
PINA
PINA7
PINA6
PINA5
PINA4
PINA3
PINA2
PINA1
PINA0
page 100
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page


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