ATmega1280 Atmel Corporation, ATmega1280 Datasheet - Page 108

• Manufacturer Part Number: ATmega1280
• Manufacturer: Atmel Corporation

Specifications of ATmega1280

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 86
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 1
• Uart: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 16
• Input Capture Channels: 4
• Pwm Channels: 15
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

2549N–AVR–05/11
When the BOOTRST Fuse is unprogrammed, the Boot section size set to 8Kbytes and the
IVSEL bit in the MCUCR Register is set before any interrupts are enabled, the most typical and
general program setup for the Reset and Interrupt Vector Addresses is:
0x0040
0x0042
0x0044
0x0046
0x0048
0x004A
0x004C
0x004E
0x0050
0x0052
0x0054
0x0056
0x0058
0x005A
0x005C
0x005E
0x0060
0x0062
0x0064
0x0066
0x0068
0x006A
0x006C
0x006E
0x0070
;
0x0072
0x0073
0x0074
0x0075
0x0076
0x0077
...
Address Labels Code
0x00000 RESET: ldi
0x00001
0x00002
0x00003
0x00004
0x00005
;
.org 0x1F002
0x1F002
0x1F004
...
0x1FO70
RESET:
...
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
jmp
ldi
out
ldi
out
sei
<instr> xxx
out
ldi
out
sei
<instr>
jmp
jmp
...
jmp
...
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
EXT_INT0
EXT_INT1
...
USART3_TXC
TIM3_COMPA
TIM3_COMPB
TIM3_COMPC
TIM3_OVF
USART1_RXC
USART1_UDRE
USART1_TXC
TWI
SPM_RDY
TIM4_CAPT
TIM4_COMPA
TIM4_COMPB
TIM4_COMPC
TIM4_OVF
TIM5_CAPT
TIM5_COMPA
TIM5_COMPB
TIM5_COMPC
TIM5_OVF
USART2_RXC
USART2_UDRE
USART2_TXC
USART3_RXC
USART3_UDRE
USART3_TXC
r16, high(RAMEND)
SPH,r16
r16, low(RAMEND)
SPL,r16
ATmega640/1280/1281/2560/2561
xxx
...
Comments
; Set Stack Pointer to top of RAM
; Enable interrupts
; IRQ0 Handler
; IRQ1 Handler
;
; USART3 TX Complete Handler
; Timer3 CompareA Handler
; Timer3 CompareB Handler
; Timer3 CompareC Handler
; Timer3 Overflow Handler
; USART1 RX Complete Handler
; USART1,UDR Empty Handler
; USART1 TX Complete Handler
; 2-wire Serial Handler
; SPM Ready Handler
; Timer4 Capture Handler
; Timer4 CompareA Handler
; Timer4 CompareB Handler
; Timer4 CompareC Handler
; Timer4 Overflow Handler
; Timer5 Capture Handler
; Timer5 CompareA Handler
; Timer5 CompareB Handler
; Timer5 CompareC Handler
; Timer5 Overflow Handler
; USART2 RX Complete Handler
; USART2,UDR Empty Handler
; USART2 TX Complete Handler
; USART3 RX Complete Handler
; USART3,UDR Empty Handler
; USART3 TX Complete Handler
; Main program start
; Set Stack Pointer to top of RAM
; Enable interrupts
108